Objective: To analyze the therapeutic effect of combining dental arch splint intermaxillary traction with rigid internal fixation for the treatment of facial comminuted fractures. Methods: Sixty patients with facial c...Objective: To analyze the therapeutic effect of combining dental arch splint intermaxillary traction with rigid internal fixation for the treatment of facial comminuted fractures. Methods: Sixty patients with facial comminuted fractures admitted for treatment between July 2023 and December 2024 were selected. Using a random number table method, 30 patients were assigned to the observation group, where moderate traction using a dental arch splint combined with rigid internal fixation was applied. Another 30 patients were assigned to the control group and only received dental arch splint traction treatment. The total effective rate, postoperative recovery indicators, periodontal status, complication rate, and quality of life scores were compared between the two groups. Results: The total effective rate in the observation group was higher than that in the control group. The postoperative recovery indicators and periodontal status in the observation group were superior to those in the control group. The complication rate and quality of life score were lower in the observation group compared to the control group, with P < 0.05. Conclusion: Combining dental arch splint intermaxillary traction with rigid internal fixation can improve the periodontal status and quality of life of patients with facial comminuted fractures, shorten postoperative recovery time, reduce various complications, and enhance surgical efficacy.展开更多
To compare the clinical efficacy of locking plate(LP)fixation and intramedullary nail(IMN)fixation for the treatment of post-traumatic nonunion of diaphyseal fractures of the femur and tibia.Methods:This single-center...To compare the clinical efficacy of locking plate(LP)fixation and intramedullary nail(IMN)fixation for the treatment of post-traumatic nonunion of diaphyseal fractures of the femur and tibia.Methods:This single-center retrospective comparative study included 50 adult patients with aseptic nonunion of femoral or tibial diaphyseal fractures treated at our institution between January 2015 and January 2025.Patients underwent either locking-plate(LP)fixation(n=25)or intramedullary nailing(IMN)(n=25).The primary outcome was radiographic union at 12 months postoperatively.Secondary outcomes included time to union,operative time,intraoperative blood loss,length of hospital stay,incidence of complications(superficial/deep infection,implant failure,malunion),and 12-month functional status assessed by the Lower Extremity Functional Scale(LEFS).Statistical comparisons used Welch t tests for continuous variables and χ^(2) or Fisher exact tests for categorical variables.The protocol received institutional review board approval with waiver of informed consent.Results:Among 50 patients(LP=25;IMN=25),the 12-month union rate was 88.00%(22/25)in the LP group and 96.00%(24/25)in the IMN group(p=0.609).Time to union was shorter with IMN(6.20±1.83 vs 7.51±2.12 months;p=0.023).Operative time(110.52±25.23 vs 145.81±30.21 min;p<0.01)and intraoperative blood loss(250.41±80.64 vs 350.22±95.30 ml;p<0.01)favored IMN.Length of hospital stay was similar(6.24±1.83 vs 6.82±2.11 days;p=0.284).The incidence of superficial wound infection did not differ significantly(12.00%vs 4.00%;p=0.609).Twelve-month LEFS scores were comparable(65.44±10.21 vs 67.10±9.83;p=0.451).Conclusion:Both locking plate and intramedullary nail fixation are effective in the treatment of femoral and tibial nonunion,with high rates of union and good functional outcomes.Intramedullary nailing may be associated with a shorter time to union,reduced operative time and blood loss,and a lower risk of superficial wound infection compared to locking plate fixation.The choice of implant should be individualized based on fracture characteristics,patient factors,and surgeon preference.展开更多
Objective: to study the effect of interfemoral fracture (Intertrochanteric Femoral Fracture, IFF). Methods: according to 36 IFF patients with different surgical procedures, 36 patients were divided into control group ...Objective: to study the effect of interfemoral fracture (Intertrochanteric Femoral Fracture, IFF). Methods: according to 36 IFF patients with different surgical procedures, 36 patients were divided into control group (36 patients, Intertan internal fixation method) and observation group (36 patients, PFNA internal fixation method) to analyze the treatment effect retrospectively. Results: (1) intraoperative bleeding (130.85 ± 19.72) ml less than control group (167.54 ± 26.31) ml;operation time (0.84 ± 0.16) h shorter than control operation time (1.16 ± 0.21) h;implantation time (34.72 ± 4.69) d longer than implantation time (11.54 ± 2.38) d.Two groups showed significant differences (P <0.05).(2) The Harris score of 1 week and 1 month was (58.49 ± 6.73) and (71.84 ± 6.94), respectively, higher than that of the control group. Two groups varied significantly (P <0.05).(3) 28 cases (77.78%) were higher than 19 cases in the control group (52.78%).Two groups showed significant differences (P <0.05).The clinical effect was not significant at 12 months (P> 0.05).(4) Three total complications (8.33%) were less than 4 complications in the control group (11.11%).2 Groups showed no significant difference (P> 0.05). Conclusion: PFNA in IFF patients with shorter bleeding, shorter operation time, better joint function recovery within 1 month and high safety.展开更多
BACKGROUND Failure to fix unstable intertrochanteric fractures impairs return to daily activities.AIM To simulate five different internal fixation methods for unstable proximal femoral fractures.METHODS A three-dimens...BACKGROUND Failure to fix unstable intertrochanteric fractures impairs return to daily activities.AIM To simulate five different internal fixation methods for unstable proximal femoral fractures.METHODS A three-dimensional model of the femur was established from sectional computed tomography images,and an internal fixation model was established.Finite element analysis of the femur model was established,and three intertrochanteric fracture models,medial defect,lateral defect,and medial-lateral defects,were simulated.Displacement and stress distribution after fixation with a proximal femoral anti-rotation intramedullary nail(PFNA),integrated dual-screw fixation(ITN),PFNA+wire,PFNA+plate,and PFNA+wire+plate were compared during daily activities.RESULTS The maximum displacement and stress of PFNA and ITN were 3.51 mm/473 MPa and 2.80 mm/588 MPa for medial defects;2.55 mm/288 MPa and 2.10 mm/307 MPa for lateral defects;and 3.84 mm/653 MPa and 3.44 mm/641 MPa for mediallateral defects,respectively.For medial-lateral defects,reconstructing the medial side alone changed the maximum displacement and stress to 2.79 mm/515 MPa;reconstructing the lateral side changed them to 3.72 mm/608 MPa,when both sides were reconstructed,they changed to 2.42 mm/309 MPa.CONCLUSION For medial defects,intramedullary fixation would allow early low-intensity rehabilitation exercise,and ITN rather than PFNA reduces the risk of varus and cut-out;for lateral wall defects or weakness,intram-edullary fixation allows higher-intensity rehabilitation exercise,and ITN reduces the risk of varus.For both medial and lateral defects,intramedullary fixation alone will not allow early functional exercise,but locating lateral or medial reconstruction will.For defects in both the inner and outer sides,if reconstruction cannot be completed,ITN is more stable.展开更多
Objective: To evaluate the effect of open reduction and internal fixation on radial head fracture and assess the post-operative function. Methods: This prospective observational study was conducted from June 2016 to J...Objective: To evaluate the effect of open reduction and internal fixation on radial head fracture and assess the post-operative function. Methods: This prospective observational study was conducted from June 2016 to July 2017 at Liaquat National Hospital and Medical College, Karachi. Altogether, 28 patients with radial head and neck fractures were enrolled in our study. These patients were admitted to the hospital and their fractures were fixed with open reduction and internal fixation. Baseline information of the patients was collected, and patient-rated elbow evaluation scores were calculated. Results: Out of the 28 patients, 21 were male and 7 were female. Besides, 16 fractures were on the right side and 12 were on the left side and 17 involving the dominant hands. In addition, 8 patients had Mason type Ⅱ fracture and 20 had Mason type Ⅲ fracture. The mean age of patients was (31.0 ± 8.0) years, and the mean follow-up is (1.2 ± 0.5) years. The mean average patient-rated elbow evaluation scores were (27.64 ± 1.60) at 1-year follow-up. Conclusions:The majority of the patients who had radial head fractures and treated by open reduction and internal fixation have attained an excellent range of motion postoperatively.展开更多
A high Mw of PLLA was synthesized, it intended to be used in the manufacture ofbioabsorbable screw applied in bone fracture internal fixation. The optical reactionconditions have been discussed.
Objective Supracondylar humerus fractures are the most frequent fractures of the paediatric elbow.The present study introduced a modified surgical procedure for treatment of supracondylar humerus fractures in children...Objective Supracondylar humerus fractures are the most frequent fractures of the paediatric elbow.The present study introduced a modified surgical procedure for treatment of supracondylar humerus fractures in children.Methods From February 2015 to August 2019,73 patients with Gartland’s type II and III supracondylar fractures were treated with this modified method.Totally,68 of all patients were followed up for 3–12 months(mean 8.25 months).The evaluation results included fracture nonunion,ulnar nerve injury,pin track infection,carrying angle and elbow joint Flynn score.Results The results showed that bone union was observed in all children,one case had an iatrogenic ulnar nerve injury,and the symptoms were completely relieved in 4 months after removing of the medial-side pin.All children had no cubitus varus deformity and no pin track infection,and the rate of satisfactory results according to Flynn’s criteria score was 100%.Conclusion The modified closed reduction and Kirschner wires internal fixation could effectively reduce the rate of open reduction,the risk of iatrogenic ulnar nerve injury,and the incidence of cubitus varus deformity in treatment of supracondylar humerus fractures in children.展开更多
Surface modification is found to be an effective way to control the initial degradation of Mg based biomedical alloys.The present study focuses on the modulation of in vitro and in vivo degradation behavior of Mg-Ce a...Surface modification is found to be an effective way to control the initial degradation of Mg based biomedical alloys.The present study focuses on the modulation of in vitro and in vivo degradation behavior of Mg-Ce alloy through a stearic acid-treated polypyrrole coating,which developed superhydrophobic surface(contact angle∼153°)that drastically enhanced the corrosion resistance(more than 85%efficacy).Cerium addition to Mg alloy results basal texture strengthening and grain refinement,resulting in improved mechanical properties.All the specimens exhibited excellent antibacterial performance against gram-negative E.Coli(DH5α)and gram positive S.aureus bacteria.The oligodynamic effect of polypyrrole coating leads to complete bacterial mitigation.Non-toxic nature of the specimens was studied by MC3T3-E1 cell proliferation and differentiation in indirect cell culture method.Improved corrosion resistance of the coated specimen leads to enhanced cell proliferation and osteogenic differentiation.Hard tissue histology and micro-CT analysis exhibited higher fraction of newly formed callus tissues and highest bone-implant integration across the coated specimen,when implanted in rabbit femur.Efficacy of the material in fracture healing was evaluated by implanting bone plate and screw in a clinically fractured goat tibia.At 3 months,complete fracture healed with no vital organ toxicity was observed for the coated specimen.The present results suggest that Ce addition and polypyrrole coating are effective ways to modulate the corrosion and biocompatibility behavior making it a potential candidate for fracture fixation applications.展开更多
Objective: to discuss the effect of minimally invasive percutaneous plate internal fixation and its influence on trauma control in the treatment of tibial fractures. Methods: 72 patients with tibial fracture who recei...Objective: to discuss the effect of minimally invasive percutaneous plate internal fixation and its influence on trauma control in the treatment of tibial fractures. Methods: 72 patients with tibial fracture who received surgical treatment in our hospital were divided into two groups by single and double number distribution method. The study group and routine group were treated with minimally invasive percutaneous plate internal fixation and open reduction and internal fixation respectively. The effects, satisfaction, surgical indexes, quality of life, complications and traumatic stress indexes of different groups of patients after different treatment methods were discussed. Results: by observing the effect and satisfaction degree of different groups of patients after different treatments, we know that the total effective rate and satisfaction degree of the patients in the study group were 94.45%, (95.65 ± 1.75) points, while the total effective rate of the patients in the routine group was 72.22%, (76.54 ± 0.65) points, and the data comparison was higher in the study group (P < 0.05);In the investigation of the quality of life of different groups of patients after different treatments, it was found that the quality of life of the patients in the study group was better (P < 0.05);In terms of the operative indexes and traumatic stress indexes of different groups of patients treated in different ways, the improvement effect of the operative indexes and traumatic stress indexes of the selected study group was better than that of the routine group (P < 0.05);Comparing the complications of different groups of patients after different ways of treatment, it shows that the probability of complications in the study group is lower than that in the routine group (P < 0.05). Conclusion: in order to improve the therapeutic effect, satisfaction and quality of life of patients with tibial fracture, reduce the probability of complications, and improve various indexes of operation and traumatic stress, minimally invasive percutaneous plate internal fixation is needed, and its application is very significant.展开更多
Objective: to analyze the clinical effect of posterior internal fixation and fusion in the treatment of patients with thoracolumbar fractures. The cases were selected from 64 patients with spinal thoracolumbar fractur...Objective: to analyze the clinical effect of posterior internal fixation and fusion in the treatment of patients with thoracolumbar fractures. The cases were selected from 64 patients with spinal thoracolumbar fractures who entered our hospital from April 2018 to April 2020 as the focus of this paper. Methods: the required groups were expanded by means of coin tossing. The upper part is the control group and the lower part is the observation group. Each group had 32 patients. The control group needs to use anterior internal fixation to carry out effective corresponding treatment, and the observation group needs to use posterior internal fixation to carry out targeted treatment. At the same time, observe the actual effect of patients in each group in the process of treatment, and compare the progress of surgery in reality. Results: finally, the overall effective rate of the observation group at this stage was (93.75%), which was significantly higher than that of the control group (62.50%). The difference between the data of each group was statistically significant (P < 0.05). The amount of bleeding in the observation group was better than that in the control group. After the operation, the time of hospitalization observation and the time of getting out of bed and moving were better than those in the control group. The difference was statistically significant (P < 0.05). Conclusion: posterior internal fixation and fusion is an ideal treatment for patients with thoracolumbar fractures. It can further improve the basic function of thoracolumbar spine of patients, the area of trauma is also very small, and the recovery time after operation is also short.展开更多
Objective: To investigate the effectiveness of the plate screw internal fixation technique on the clinical outcomes of patients with traumatic fractures of long bones in the lower extremities. Methods: From January 20...Objective: To investigate the effectiveness of the plate screw internal fixation technique on the clinical outcomes of patients with traumatic fractures of long bones in the lower extremities. Methods: From January 2022 to December 2023, 70 patients with traumatic fractures of long bones in the lower extremities were admitted to the hospital and randomly divided into two groups: the control group and the observation group, each consisting of 35 cases. The control group underwent traditional closed interlocking intramedullary nailing, while the observation group received internal fixation with steel plates and screws. Relevant surgical indicators, treatment effectiveness, and postoperative complication rates were compared between the two groups. Results: The observation group exhibited significantly short surgical duration (80.65 ± 5.01 vs. 88.36 ± 5.26 minutes), fracture healing time (13.27 ± 0.32 vs. 15.52 ± 0.48 weeks), and hospitalization days (10.49 ± 1.13 vs. 16.57 ± 1.15 days) compared to the control group (P = 0.000). The effective treatment rate was significantly higher in the observation group (29/82.86%) than in the control group (21/60.00%), with a significant difference observed (χ2 = 4.480, P = 0.034). Additionally, the complication rate in the observation group (2/5.71%) was significantly lower than that in the control group (8/22.86%), with a correlated difference (χ2 = 4.200, P = 0.040). Conclusion: The plate screw internal fixation technique demonstrates significant clinical efficacy in treating traumatic fractures of long bones in the lower extremities. It improves the healing rate, reduces complications, and represents a safe and effective treatment strategy worthy of widespread use and application.展开更多
The purpose of this study was to observe the clinical efficacy of umbilical cord in the treatment of Jinri capsule and analyze its effect on postoperative injury and bone metabolism. Methods 90 cases of SAP tree fract...The purpose of this study was to observe the clinical efficacy of umbilical cord in the treatment of Jinri capsule and analyze its effect on postoperative injury and bone metabolism. Methods 90 cases of SAP tree fracture were randomly divided into two groups according to 1:1. In the control group, 45 patients were treated with MIPO, and 45 patients were treated with Jintian capsule based on MIPO for 6 weeks. Organic volume content (VOC), bone mass number (TB.n), elastic bone stress (ES) and calcium (BFP) were compared according to bone volume ratio (BV/TV) before and 6 weeks after operation. Six months postoperatively, bone protective function (OPG), tartrate phosphatase (TRAP), K collagen (KTH) and shoulder recovery were observed. Results Within 6 weeks after treatment, bone quality indexes such as TV were significantly lower than those in control group (P<0.05), and bone quality indexes such as VOC and TBC were significantly lower than those in control group (P<0.05). Significantly lower than control group (P<0.05). N was significantly higher than that of control group (P<0.05). The osteogenesis rates of BGP and OPG were higher than those of the control group (P<0.05), and the osteogenesis rates of TRAP and CTX were significantly lower than those of the control group (P<0.05). Were compared between the two groups before and 6 weeks after operation. Six months after surgery, the observation group had better function recovery, and the constant Murley score was significantly higher than that of the control group. Conclusion MIPO combined with Jintiange capsule can significantly improve the function recovery effect of shoulder joint, effectively stabilize bone mass index, promote the formation of bone structure, quickly recover bone metabolism function, and finally achieve fracture healing. It is worthy of clinical application.展开更多
Objective: to summarize the surgical treatment methods of comminuted calcaneal fracture and the effect differences of different surgical methods. Methods: patients with calcaneal fractures admitted to our hospital and...Objective: to summarize the surgical treatment methods of comminuted calcaneal fracture and the effect differences of different surgical methods. Methods: patients with calcaneal fractures admitted to our hospital and confirmed for surgical treatment were selected. All patients were comminuted fractures and met the requirements of surgical indications. The cases were selected from June 2018 to June 2020, and the conventional group took incision reduction surgery based on L-type incision. The experimental group performed minimally invasive plate internal fixation with plate screws according to the posterior heel or the tarsal sinus incision position. When observed after the operation, the items involved included the function of the heel, the recovery status of the calcaneus, the surgery-related indicators, and the complications occurring during and after the surgery. Results: the patients of the experimental group were significantly higher than the height. Bolher and Gissen angle were better than the conventional group in March and June, P <0.05;the time, bleeding volume, incision length, hospitalization time and related complications were significantly better than the conventional group, P <0.05. Conclusion: minimally invasive plate and screw internal fixation can effectively treat comminuted calcaneal fracture, which has a significant effect on the foot and ankle function, and obviously acts on the fracture site and function.展开更多
Objective To explore the effects of the anterior internal fixation systems on the post-operative lateral angulation in treatment of thoracolumbar fractures.Methods A retrospective study was done to analyze the 172 pat...Objective To explore the effects of the anterior internal fixation systems on the post-operative lateral angulation in treatment of thoracolumbar fractures.Methods A retrospective study was done to analyze the 172 patients who had展开更多
To assess the effect of using buttress plate associated with antografting of fibula and iliac bone for the treatment of distal femoral C3 type fracture.Methods Seventeen cases of distal femoral C3 type fracture usin...To assess the effect of using buttress plate associated with antografting of fibula and iliac bone for the treatment of distal femoral C3 type fracture.Methods Seventeen cases of distal femoral C3 type fracture using buttress plate associated with antografting of fibula and iliac bone were analyzed retrospectively.Results All cases were followed up for an average of 24 months（8～55 months）.The average time of octets bridge forming were 4 months（3～5 months） while the average time for bone union were 8 months （6～14 months）.According to Shelbourne rating system,result of all 18 cases were excellent and no malunion,infection were found.Conclusion Buttress plate associated with antografting of fibula and iliac bone is an effective alternative for the treatment of distal femoral C3 type fracture.It can provide more stable fixation to the bone and earlier functional exercises can be achieved.5 refs,3 figs,1 tab.展开更多
Objective: To compare the biomechanical basis of 3 different internal fixation methods: nitinol patellar concentrator (NT-PC), tension band and wire circle in treating patellar fractures. Methods: The epoxy resin thre...Objective: To compare the biomechanical basis of 3 different internal fixation methods: nitinol patellar concentrator (NT-PC), tension band and wire circle in treating patellar fractures. Methods: The epoxy resin three dimensional photoelasticity patellar models were made by precise moulding, and were fixated by nitinol patellar concentrator (NT-PC), tension band and wire circle respectively. The patellar models with frozen stress stripes were put into the polarized light field and the stress distributions were compared. As for the model fixated by NT-PC, by dividing layer, photographing and tracing, we used the iterative method to calculate the stress value of every internal node of the epoxy resin patellar model, and the character of stress was analyzed. Results: An overall stress field was yielded when the patellar model was fixated by NT-PC, and the stripes were more than that of tension band model and wire circle model, which have only few stress stripes in the fixated layers. Further analysis indicated that there were continuous fixated stresses in the facies articularis and distal pole of patella, and the character of stresses produced by NT-PC were mainly in longitudinal direction, then in transverse direction. The shearing stresses were small. Conclusion: The initiative and continuous memorial stress of NT-PC and its overall stress distribution character are the essence of NT-PC distinguished with tension band and wire circle in treating patellar fractures. The stress character produced by NT-PC is good for the stability of fracture site and prompts fracture healing.展开更多
To discuss and evaluate the method and effect of using calcaneal anatomic plate in treatment of intra-articular fractures of the calcaneus with assistant of arthroscope, 86 intra-articular fractures of the calcaneus i...To discuss and evaluate the method and effect of using calcaneal anatomic plate in treatment of intra-articular fractures of the calcaneus with assistant of arthroscope, 86 intra-articular fractures of the calcaneus in 78 patients were reduced by open reduction, and rigid fixation was made with calcaneal anatomic plate under assistant of arthroscope. The average follow-up duration was 18 months （range 12-30 months）. The effect of treatment was evaluated according to AOFAS and X-ray before and after operation. The results showed that 86 patients have obtained satisfactory reduction according to X-ray, and there was significant difference before and after operation （P〈0. 01）, the total excellent and fine rate was 91.86%. Treating intra-articular fractures of the calcaneus with calcaneal anatomic plate under arthroscope may provide more chance to achieve anatomical reconstruction, which can lead to satisfied recovery of function and few complication.展开更多
Objective: Acetabular fractures are common injuries in Iran. We assess the functional outcome of open reduction and internal fixation management of displaced Complex acetabular fractures. Materials and Methods: We ana...Objective: Acetabular fractures are common injuries in Iran. We assess the functional outcome of open reduction and internal fixation management of displaced Complex acetabular fractures. Materials and Methods: We analyzed a case series of patients with open reduction and internal fixation (ORIF) for complex acetabular fractures. Two hundred patients (132 men, 68 women) in four age groups including with a mean age of 43.39 ± 6.18 years (range 20 - 59 years) and a mean follow-up of 82.34 ± 12.48 months (range 18 - 109 months) met the inclusion criteria. Functional outcome at final follow-up was graded assessed according to Harris score. Factors affecting were defined. Results: Anatomic reduction was achieved in 192 hips, imperfect in 8 and poor in none. Radiological outcome revealed excellent results in 128 (64%) hips, good in eight, fair in five and none in poor. Harris score were excellent in 139 (69.5%) hips, good in 43 (21.5%) and fair in 18 (9%) and poor in none. The anatomical reduction results had a favorable final functional outcome. (0.003) However, BMI (P Conclusion: Optimal functional and radiological outcomes have been achieved with anatomic postoperative reduction. Also experience of specialist, on time surgery and good recovery lead to receiving excellent functional outcome with at least complications.展开更多
AIM:To evaluate the methods and results of the AXIS lateral mass screw plate system in the treating of lower cervical spine injury.METHODS:29 cases of lower cervical vertebrae injury were fixed with AXIS system.All of...AIM:To evaluate the methods and results of the AXIS lateral mass screw plate system in the treating of lower cervical spine injury.METHODS:29 cases of lower cervical vertebrae injury were fixed with AXIS system.All of them were followed up for more than 1 year.RESULTS:All cases had a good bone union without malformation.We found no complication of the injury to the vertebral arteries or nerves.There was no loosening of the plate and screw. CONCLUSION:AXIS lateral mass screw plate system has the characteristic of stable,simple and safe and is suitable for the treatment of lower cervical spine injury.展开更多
基金Special Support Program for Scientific and Technological Talent“Application and Impact of Dental Arch Splint Intermaxillary Traction Combined with Rigid Internal Fixation on Oral Health in Patients with Facial Fractures”(DX2023BR18)。
文摘Objective: To analyze the therapeutic effect of combining dental arch splint intermaxillary traction with rigid internal fixation for the treatment of facial comminuted fractures. Methods: Sixty patients with facial comminuted fractures admitted for treatment between July 2023 and December 2024 were selected. Using a random number table method, 30 patients were assigned to the observation group, where moderate traction using a dental arch splint combined with rigid internal fixation was applied. Another 30 patients were assigned to the control group and only received dental arch splint traction treatment. The total effective rate, postoperative recovery indicators, periodontal status, complication rate, and quality of life scores were compared between the two groups. Results: The total effective rate in the observation group was higher than that in the control group. The postoperative recovery indicators and periodontal status in the observation group were superior to those in the control group. The complication rate and quality of life score were lower in the observation group compared to the control group, with P < 0.05. Conclusion: Combining dental arch splint intermaxillary traction with rigid internal fixation can improve the periodontal status and quality of life of patients with facial comminuted fractures, shorten postoperative recovery time, reduce various complications, and enhance surgical efficacy.
文摘To compare the clinical efficacy of locking plate(LP)fixation and intramedullary nail(IMN)fixation for the treatment of post-traumatic nonunion of diaphyseal fractures of the femur and tibia.Methods:This single-center retrospective comparative study included 50 adult patients with aseptic nonunion of femoral or tibial diaphyseal fractures treated at our institution between January 2015 and January 2025.Patients underwent either locking-plate(LP)fixation(n=25)or intramedullary nailing(IMN)(n=25).The primary outcome was radiographic union at 12 months postoperatively.Secondary outcomes included time to union,operative time,intraoperative blood loss,length of hospital stay,incidence of complications(superficial/deep infection,implant failure,malunion),and 12-month functional status assessed by the Lower Extremity Functional Scale(LEFS).Statistical comparisons used Welch t tests for continuous variables and χ^(2) or Fisher exact tests for categorical variables.The protocol received institutional review board approval with waiver of informed consent.Results:Among 50 patients(LP=25;IMN=25),the 12-month union rate was 88.00%(22/25)in the LP group and 96.00%(24/25)in the IMN group(p=0.609).Time to union was shorter with IMN(6.20±1.83 vs 7.51±2.12 months;p=0.023).Operative time(110.52±25.23 vs 145.81±30.21 min;p<0.01)and intraoperative blood loss(250.41±80.64 vs 350.22±95.30 ml;p<0.01)favored IMN.Length of hospital stay was similar(6.24±1.83 vs 6.82±2.11 days;p=0.284).The incidence of superficial wound infection did not differ significantly(12.00%vs 4.00%;p=0.609).Twelve-month LEFS scores were comparable(65.44±10.21 vs 67.10±9.83;p=0.451).Conclusion:Both locking plate and intramedullary nail fixation are effective in the treatment of femoral and tibial nonunion,with high rates of union and good functional outcomes.Intramedullary nailing may be associated with a shorter time to union,reduced operative time and blood loss,and a lower risk of superficial wound infection compared to locking plate fixation.The choice of implant should be individualized based on fracture characteristics,patient factors,and surgeon preference.
文摘Objective: to study the effect of interfemoral fracture (Intertrochanteric Femoral Fracture, IFF). Methods: according to 36 IFF patients with different surgical procedures, 36 patients were divided into control group (36 patients, Intertan internal fixation method) and observation group (36 patients, PFNA internal fixation method) to analyze the treatment effect retrospectively. Results: (1) intraoperative bleeding (130.85 ± 19.72) ml less than control group (167.54 ± 26.31) ml;operation time (0.84 ± 0.16) h shorter than control operation time (1.16 ± 0.21) h;implantation time (34.72 ± 4.69) d longer than implantation time (11.54 ± 2.38) d.Two groups showed significant differences (P <0.05).(2) The Harris score of 1 week and 1 month was (58.49 ± 6.73) and (71.84 ± 6.94), respectively, higher than that of the control group. Two groups varied significantly (P <0.05).(3) 28 cases (77.78%) were higher than 19 cases in the control group (52.78%).Two groups showed significant differences (P <0.05).The clinical effect was not significant at 12 months (P> 0.05).(4) Three total complications (8.33%) were less than 4 complications in the control group (11.11%).2 Groups showed no significant difference (P> 0.05). Conclusion: PFNA in IFF patients with shorter bleeding, shorter operation time, better joint function recovery within 1 month and high safety.
文摘BACKGROUND Failure to fix unstable intertrochanteric fractures impairs return to daily activities.AIM To simulate five different internal fixation methods for unstable proximal femoral fractures.METHODS A three-dimensional model of the femur was established from sectional computed tomography images,and an internal fixation model was established.Finite element analysis of the femur model was established,and three intertrochanteric fracture models,medial defect,lateral defect,and medial-lateral defects,were simulated.Displacement and stress distribution after fixation with a proximal femoral anti-rotation intramedullary nail(PFNA),integrated dual-screw fixation(ITN),PFNA+wire,PFNA+plate,and PFNA+wire+plate were compared during daily activities.RESULTS The maximum displacement and stress of PFNA and ITN were 3.51 mm/473 MPa and 2.80 mm/588 MPa for medial defects;2.55 mm/288 MPa and 2.10 mm/307 MPa for lateral defects;and 3.84 mm/653 MPa and 3.44 mm/641 MPa for mediallateral defects,respectively.For medial-lateral defects,reconstructing the medial side alone changed the maximum displacement and stress to 2.79 mm/515 MPa;reconstructing the lateral side changed them to 3.72 mm/608 MPa,when both sides were reconstructed,they changed to 2.42 mm/309 MPa.CONCLUSION For medial defects,intramedullary fixation would allow early low-intensity rehabilitation exercise,and ITN rather than PFNA reduces the risk of varus and cut-out;for lateral wall defects or weakness,intram-edullary fixation allows higher-intensity rehabilitation exercise,and ITN reduces the risk of varus.For both medial and lateral defects,intramedullary fixation alone will not allow early functional exercise,but locating lateral or medial reconstruction will.For defects in both the inner and outer sides,if reconstruction cannot be completed,ITN is more stable.
文摘Objective: To evaluate the effect of open reduction and internal fixation on radial head fracture and assess the post-operative function. Methods: This prospective observational study was conducted from June 2016 to July 2017 at Liaquat National Hospital and Medical College, Karachi. Altogether, 28 patients with radial head and neck fractures were enrolled in our study. These patients were admitted to the hospital and their fractures were fixed with open reduction and internal fixation. Baseline information of the patients was collected, and patient-rated elbow evaluation scores were calculated. Results: Out of the 28 patients, 21 were male and 7 were female. Besides, 16 fractures were on the right side and 12 were on the left side and 17 involving the dominant hands. In addition, 8 patients had Mason type Ⅱ fracture and 20 had Mason type Ⅲ fracture. The mean age of patients was (31.0 ± 8.0) years, and the mean follow-up is (1.2 ± 0.5) years. The mean average patient-rated elbow evaluation scores were (27.64 ± 1.60) at 1-year follow-up. Conclusions:The majority of the patients who had radial head fractures and treated by open reduction and internal fixation have attained an excellent range of motion postoperatively.
文摘A high Mw of PLLA was synthesized, it intended to be used in the manufacture ofbioabsorbable screw applied in bone fracture internal fixation. The optical reactionconditions have been discussed.
基金supported by Program of the National Natural Science Foundation of China(No.82074233)Scientific Research Foundation for Advanced Talents,Xiang’an Hospital of Xiamen University(No.PM201809170009).
文摘Objective Supracondylar humerus fractures are the most frequent fractures of the paediatric elbow.The present study introduced a modified surgical procedure for treatment of supracondylar humerus fractures in children.Methods From February 2015 to August 2019,73 patients with Gartland’s type II and III supracondylar fractures were treated with this modified method.Totally,68 of all patients were followed up for 3–12 months(mean 8.25 months).The evaluation results included fracture nonunion,ulnar nerve injury,pin track infection,carrying angle and elbow joint Flynn score.Results The results showed that bone union was observed in all children,one case had an iatrogenic ulnar nerve injury,and the symptoms were completely relieved in 4 months after removing of the medial-side pin.All children had no cubitus varus deformity and no pin track infection,and the rate of satisfactory results according to Flynn’s criteria score was 100%.Conclusion The modified closed reduction and Kirschner wires internal fixation could effectively reduce the rate of open reduction,the risk of iatrogenic ulnar nerve injury,and the incidence of cubitus varus deformity in treatment of supracondylar humerus fractures in children.
基金the financial assistance from Science and Engineering Research Board(SERBCRG/2020/002818/MMM).
文摘Surface modification is found to be an effective way to control the initial degradation of Mg based biomedical alloys.The present study focuses on the modulation of in vitro and in vivo degradation behavior of Mg-Ce alloy through a stearic acid-treated polypyrrole coating,which developed superhydrophobic surface(contact angle∼153°)that drastically enhanced the corrosion resistance(more than 85%efficacy).Cerium addition to Mg alloy results basal texture strengthening and grain refinement,resulting in improved mechanical properties.All the specimens exhibited excellent antibacterial performance against gram-negative E.Coli(DH5α)and gram positive S.aureus bacteria.The oligodynamic effect of polypyrrole coating leads to complete bacterial mitigation.Non-toxic nature of the specimens was studied by MC3T3-E1 cell proliferation and differentiation in indirect cell culture method.Improved corrosion resistance of the coated specimen leads to enhanced cell proliferation and osteogenic differentiation.Hard tissue histology and micro-CT analysis exhibited higher fraction of newly formed callus tissues and highest bone-implant integration across the coated specimen,when implanted in rabbit femur.Efficacy of the material in fracture healing was evaluated by implanting bone plate and screw in a clinically fractured goat tibia.At 3 months,complete fracture healed with no vital organ toxicity was observed for the coated specimen.The present results suggest that Ce addition and polypyrrole coating are effective ways to modulate the corrosion and biocompatibility behavior making it a potential candidate for fracture fixation applications.
文摘Objective: to discuss the effect of minimally invasive percutaneous plate internal fixation and its influence on trauma control in the treatment of tibial fractures. Methods: 72 patients with tibial fracture who received surgical treatment in our hospital were divided into two groups by single and double number distribution method. The study group and routine group were treated with minimally invasive percutaneous plate internal fixation and open reduction and internal fixation respectively. The effects, satisfaction, surgical indexes, quality of life, complications and traumatic stress indexes of different groups of patients after different treatment methods were discussed. Results: by observing the effect and satisfaction degree of different groups of patients after different treatments, we know that the total effective rate and satisfaction degree of the patients in the study group were 94.45%, (95.65 ± 1.75) points, while the total effective rate of the patients in the routine group was 72.22%, (76.54 ± 0.65) points, and the data comparison was higher in the study group (P < 0.05);In the investigation of the quality of life of different groups of patients after different treatments, it was found that the quality of life of the patients in the study group was better (P < 0.05);In terms of the operative indexes and traumatic stress indexes of different groups of patients treated in different ways, the improvement effect of the operative indexes and traumatic stress indexes of the selected study group was better than that of the routine group (P < 0.05);Comparing the complications of different groups of patients after different ways of treatment, it shows that the probability of complications in the study group is lower than that in the routine group (P < 0.05). Conclusion: in order to improve the therapeutic effect, satisfaction and quality of life of patients with tibial fracture, reduce the probability of complications, and improve various indexes of operation and traumatic stress, minimally invasive percutaneous plate internal fixation is needed, and its application is very significant.
文摘Objective: to analyze the clinical effect of posterior internal fixation and fusion in the treatment of patients with thoracolumbar fractures. The cases were selected from 64 patients with spinal thoracolumbar fractures who entered our hospital from April 2018 to April 2020 as the focus of this paper. Methods: the required groups were expanded by means of coin tossing. The upper part is the control group and the lower part is the observation group. Each group had 32 patients. The control group needs to use anterior internal fixation to carry out effective corresponding treatment, and the observation group needs to use posterior internal fixation to carry out targeted treatment. At the same time, observe the actual effect of patients in each group in the process of treatment, and compare the progress of surgery in reality. Results: finally, the overall effective rate of the observation group at this stage was (93.75%), which was significantly higher than that of the control group (62.50%). The difference between the data of each group was statistically significant (P < 0.05). The amount of bleeding in the observation group was better than that in the control group. After the operation, the time of hospitalization observation and the time of getting out of bed and moving were better than those in the control group. The difference was statistically significant (P < 0.05). Conclusion: posterior internal fixation and fusion is an ideal treatment for patients with thoracolumbar fractures. It can further improve the basic function of thoracolumbar spine of patients, the area of trauma is also very small, and the recovery time after operation is also short.
文摘Objective: To investigate the effectiveness of the plate screw internal fixation technique on the clinical outcomes of patients with traumatic fractures of long bones in the lower extremities. Methods: From January 2022 to December 2023, 70 patients with traumatic fractures of long bones in the lower extremities were admitted to the hospital and randomly divided into two groups: the control group and the observation group, each consisting of 35 cases. The control group underwent traditional closed interlocking intramedullary nailing, while the observation group received internal fixation with steel plates and screws. Relevant surgical indicators, treatment effectiveness, and postoperative complication rates were compared between the two groups. Results: The observation group exhibited significantly short surgical duration (80.65 ± 5.01 vs. 88.36 ± 5.26 minutes), fracture healing time (13.27 ± 0.32 vs. 15.52 ± 0.48 weeks), and hospitalization days (10.49 ± 1.13 vs. 16.57 ± 1.15 days) compared to the control group (P = 0.000). The effective treatment rate was significantly higher in the observation group (29/82.86%) than in the control group (21/60.00%), with a significant difference observed (χ2 = 4.480, P = 0.034). Additionally, the complication rate in the observation group (2/5.71%) was significantly lower than that in the control group (8/22.86%), with a correlated difference (χ2 = 4.200, P = 0.040). Conclusion: The plate screw internal fixation technique demonstrates significant clinical efficacy in treating traumatic fractures of long bones in the lower extremities. It improves the healing rate, reduces complications, and represents a safe and effective treatment strategy worthy of widespread use and application.
文摘The purpose of this study was to observe the clinical efficacy of umbilical cord in the treatment of Jinri capsule and analyze its effect on postoperative injury and bone metabolism. Methods 90 cases of SAP tree fracture were randomly divided into two groups according to 1:1. In the control group, 45 patients were treated with MIPO, and 45 patients were treated with Jintian capsule based on MIPO for 6 weeks. Organic volume content (VOC), bone mass number (TB.n), elastic bone stress (ES) and calcium (BFP) were compared according to bone volume ratio (BV/TV) before and 6 weeks after operation. Six months postoperatively, bone protective function (OPG), tartrate phosphatase (TRAP), K collagen (KTH) and shoulder recovery were observed. Results Within 6 weeks after treatment, bone quality indexes such as TV were significantly lower than those in control group (P<0.05), and bone quality indexes such as VOC and TBC were significantly lower than those in control group (P<0.05). Significantly lower than control group (P<0.05). N was significantly higher than that of control group (P<0.05). The osteogenesis rates of BGP and OPG were higher than those of the control group (P<0.05), and the osteogenesis rates of TRAP and CTX were significantly lower than those of the control group (P<0.05). Were compared between the two groups before and 6 weeks after operation. Six months after surgery, the observation group had better function recovery, and the constant Murley score was significantly higher than that of the control group. Conclusion MIPO combined with Jintiange capsule can significantly improve the function recovery effect of shoulder joint, effectively stabilize bone mass index, promote the formation of bone structure, quickly recover bone metabolism function, and finally achieve fracture healing. It is worthy of clinical application.
文摘Objective: to summarize the surgical treatment methods of comminuted calcaneal fracture and the effect differences of different surgical methods. Methods: patients with calcaneal fractures admitted to our hospital and confirmed for surgical treatment were selected. All patients were comminuted fractures and met the requirements of surgical indications. The cases were selected from June 2018 to June 2020, and the conventional group took incision reduction surgery based on L-type incision. The experimental group performed minimally invasive plate internal fixation with plate screws according to the posterior heel or the tarsal sinus incision position. When observed after the operation, the items involved included the function of the heel, the recovery status of the calcaneus, the surgery-related indicators, and the complications occurring during and after the surgery. Results: the patients of the experimental group were significantly higher than the height. Bolher and Gissen angle were better than the conventional group in March and June, P <0.05;the time, bleeding volume, incision length, hospitalization time and related complications were significantly better than the conventional group, P <0.05. Conclusion: minimally invasive plate and screw internal fixation can effectively treat comminuted calcaneal fracture, which has a significant effect on the foot and ankle function, and obviously acts on the fracture site and function.
文摘Objective To explore the effects of the anterior internal fixation systems on the post-operative lateral angulation in treatment of thoracolumbar fractures.Methods A retrospective study was done to analyze the 172 patients who had
文摘To assess the effect of using buttress plate associated with antografting of fibula and iliac bone for the treatment of distal femoral C3 type fracture.Methods Seventeen cases of distal femoral C3 type fracture using buttress plate associated with antografting of fibula and iliac bone were analyzed retrospectively.Results All cases were followed up for an average of 24 months（8～55 months）.The average time of octets bridge forming were 4 months（3～5 months） while the average time for bone union were 8 months （6～14 months）.According to Shelbourne rating system,result of all 18 cases were excellent and no malunion,infection were found.Conclusion Buttress plate associated with antografting of fibula and iliac bone is an effective alternative for the treatment of distal femoral C3 type fracture.It can provide more stable fixation to the bone and earlier functional exercises can be achieved.5 refs,3 figs,1 tab.
文摘Objective: To compare the biomechanical basis of 3 different internal fixation methods: nitinol patellar concentrator (NT-PC), tension band and wire circle in treating patellar fractures. Methods: The epoxy resin three dimensional photoelasticity patellar models were made by precise moulding, and were fixated by nitinol patellar concentrator (NT-PC), tension band and wire circle respectively. The patellar models with frozen stress stripes were put into the polarized light field and the stress distributions were compared. As for the model fixated by NT-PC, by dividing layer, photographing and tracing, we used the iterative method to calculate the stress value of every internal node of the epoxy resin patellar model, and the character of stress was analyzed. Results: An overall stress field was yielded when the patellar model was fixated by NT-PC, and the stripes were more than that of tension band model and wire circle model, which have only few stress stripes in the fixated layers. Further analysis indicated that there were continuous fixated stresses in the facies articularis and distal pole of patella, and the character of stresses produced by NT-PC were mainly in longitudinal direction, then in transverse direction. The shearing stresses were small. Conclusion: The initiative and continuous memorial stress of NT-PC and its overall stress distribution character are the essence of NT-PC distinguished with tension band and wire circle in treating patellar fractures. The stress character produced by NT-PC is good for the stability of fracture site and prompts fracture healing.
文摘To discuss and evaluate the method and effect of using calcaneal anatomic plate in treatment of intra-articular fractures of the calcaneus with assistant of arthroscope, 86 intra-articular fractures of the calcaneus in 78 patients were reduced by open reduction, and rigid fixation was made with calcaneal anatomic plate under assistant of arthroscope. The average follow-up duration was 18 months （range 12-30 months）. The effect of treatment was evaluated according to AOFAS and X-ray before and after operation. The results showed that 86 patients have obtained satisfactory reduction according to X-ray, and there was significant difference before and after operation （P〈0. 01）, the total excellent and fine rate was 91.86%. Treating intra-articular fractures of the calcaneus with calcaneal anatomic plate under arthroscope may provide more chance to achieve anatomical reconstruction, which can lead to satisfied recovery of function and few complication.
文摘Objective: Acetabular fractures are common injuries in Iran. We assess the functional outcome of open reduction and internal fixation management of displaced Complex acetabular fractures. Materials and Methods: We analyzed a case series of patients with open reduction and internal fixation (ORIF) for complex acetabular fractures. Two hundred patients (132 men, 68 women) in four age groups including with a mean age of 43.39 ± 6.18 years (range 20 - 59 years) and a mean follow-up of 82.34 ± 12.48 months (range 18 - 109 months) met the inclusion criteria. Functional outcome at final follow-up was graded assessed according to Harris score. Factors affecting were defined. Results: Anatomic reduction was achieved in 192 hips, imperfect in 8 and poor in none. Radiological outcome revealed excellent results in 128 (64%) hips, good in eight, fair in five and none in poor. Harris score were excellent in 139 (69.5%) hips, good in 43 (21.5%) and fair in 18 (9%) and poor in none. The anatomical reduction results had a favorable final functional outcome. (0.003) However, BMI (P Conclusion: Optimal functional and radiological outcomes have been achieved with anatomic postoperative reduction. Also experience of specialist, on time surgery and good recovery lead to receiving excellent functional outcome with at least complications.
文摘AIM:To evaluate the methods and results of the AXIS lateral mass screw plate system in the treating of lower cervical spine injury.METHODS:29 cases of lower cervical vertebrae injury were fixed with AXIS system.All of them were followed up for more than 1 year.RESULTS:All cases had a good bone union without malformation.We found no complication of the injury to the vertebral arteries or nerves.There was no loosening of the plate and screw. CONCLUSION:AXIS lateral mass screw plate system has the characteristic of stable,simple and safe and is suitable for the treatment of lower cervical spine injury.
