<strong>Rationale:</strong> The three-dimensional (3D) computer-made titanium mesh is widely used in the skull repair for those patients receiving decompression of the bone flap. It can restore normal anat...<strong>Rationale:</strong> The three-dimensional (3D) computer-made titanium mesh is widely used in the skull repair for those patients receiving decompression of the bone flap. It can restore normal anatomy to a greater extent and make a better appearance. <strong>Case Presentation: </strong>We reported two cases of patients admitted to our hospital who have experienced high scalp tension after skull repair. At first, these two patients underwent decompression of the bone flap, and the physical examination results showed a defect of skull. No neurological symptoms and signs were found. The 3D computed tomography (CT) reconstruction of skull was performed, and then the skull repair with 3D titanium mesh was conducted. But because of high scalp tension, they underwent a second operation, during which we re-trimmed and reduce the arc of the titanium mesh. The scalp incision of both patients healed well and no titanium mesh was exposed. Both patients have a good prognosis. <strong>Lessons:</strong> We highlight that the high tension of scalp due to overstretching after 3D titanium mesh repair for skull defect should be paid much attention to. Trimming and reducing the arc of titanium mesh is an effective treatment for this situation.展开更多
Background: Laparoscopic tension-free repair of inguinal hernia was presented in 1990s, promising less pain and short recovery period, but carrying the risk mesh bulging and migration. Objective: We have presented our...Background: Laparoscopic tension-free repair of inguinal hernia was presented in 1990s, promising less pain and short recovery period, but carrying the risk mesh bulging and migration. Objective: We have presented our technique in which central zone of mesh is fixed only after closure of hernial defect. Patients and Methods: This study included 27 males patients (14 indirect inguinal hernias, 9 direct inguinal hernias, 4 both direct and indirect inguinal hernias on the same side). These cases are undergoing tension-free mesh repair after closure of hernial defect, and the mesh is fixed only at its central zone using Gulbran 2, between April 2011 and March 2013. The follow-up period ranged from 6 to 30 months. The intra and postoperative complications were recorded. Results: Mean hospital stay was 1 day. The age of this group of patients ranged from 23 to 63 years (mean, 47 years). The operative time ranged from 30 to 100 minutes (mean, 45 minutes). The intraoperative complications were in form of mild bleeding in 7 patients (25.9%) during hernial sac dissection. Postoperative complications were mild inguinal pain in 4 patients (14.8%) for three weeks. Mild hydrocele in 3 patients (11%) was recorded. No recurrence or bulging at hernia site was noticed during the period of follow-up. Conclusion: Laparoscopic inguinal hernia repair with central mesh fixation after closure of hernial defect is effective, easy and free of complications.展开更多
Background: Current techniques in partial auricular reconstruction can utilize an autologous or alloplastic framework covered by a variety of soft tissue envelopes. Objective: Is to evaluate the benefit of using polyp...Background: Current techniques in partial auricular reconstruction can utilize an autologous or alloplastic framework covered by a variety of soft tissue envelopes. Objective: Is to evaluate the benefit of using polypropylene mesh to reconstruct helix framework in partial auricular defects covered with local postauricular skin flap. Method: Eleven patients with partial auricular defect were treated by using polypropylene mesh helix framework which is covered with post auricular flap in a two stage repair;clinical results of the procedure were evaluated. Results: This technique achieved satisfactory results in 9 (81.8%) cases. Early Post operative complications: Hematoma formation in one case, mild infection in two cases, edema in two cases, and Partial overlying skin breakdown in one case with failure of technique. Late Post operative complications: Hypertrophic scar in one case, narrow retroauricular sulcus in one case, hair bearing skin over the auricle in one case. Conclusion: It is a simple technique, with satisfactory clinical results, easily done, even under local anesthesia, with no donor site morbidity of autogenous cartilage harvesting, not costly as other alloplastic substitutes, large series and longer follow up period are needed for better evaluation of this technique.展开更多
Objective To explore the application of scalp rotation flap in reconstruction of infectious scalp defect with titanium mesh exposure. Methods Twelve patients were treated in this group including 4 males and 8 female. ...Objective To explore the application of scalp rotation flap in reconstruction of infectious scalp defect with titanium mesh exposure. Methods Twelve patients were treated in this group including 4 males and 8 female. S The defective size ranged from 2. 0 cm × 5. 0 cm to 0.展开更多
针对人工目视排查大型旋转过滤设备网片缺陷时存在的效率低下,缺陷与背景之间边界模糊及网孔中的小水珠产生反光现象等问题,提出了一个基于多维特征融合的高效网片缺陷检测算法。引入了泊松图像增强技术,实现了缺陷目标与正常背景区域...针对人工目视排查大型旋转过滤设备网片缺陷时存在的效率低下,缺陷与背景之间边界模糊及网孔中的小水珠产生反光现象等问题,提出了一个基于多维特征融合的高效网片缺陷检测算法。引入了泊松图像增强技术,实现了缺陷目标与正常背景区域的平滑融合,增加了小样本缺陷数量的同时解决了缺陷数量分布不均匀的问题。在YOLOv8中融入轻量多维卷积改进的C2fLWDC(C2flightweight multi-dimensional convolution)模块及加权多特征增强模块,既增强了网络对缺陷特征的提取又实现了各级特征的高效融合,提升了对多尺度缺陷样本的表征能力。采用EIOU(efficient intersection over union)定位损失函数,加速了对缺陷目标的准确定位。网片数据集检测结果表明,改进后的算法mAP(mean average precision)达到92%,相较于原始模型提升了16.8个百分点,能很好地完成缺陷目标的检测任务。展开更多
Objective:Ventral hernia is an anterior abdominal wall hernia,with an incidence of 2%-13%.Laparoscopic ventral hernia repair is the preferred method worldwide with all the advantages of the laparoscopic technique prov...Objective:Ventral hernia is an anterior abdominal wall hernia,with an incidence of 2%-13%.Laparoscopic ventral hernia repair is the preferred method worldwide with all the advantages of the laparoscopic technique proven to be an effective treatment option.This study aims to assess the long-term outcomes of laparoscopic management of ventral hernia repair using intraperitoneal onlay mesh(IPOM)or intraperitoneal onlay mesh with defect closure(IPOM PLUS)technique with the usage of variety of synthetic meshes intraperitoneally.Methods:A retrospective study of 821 patients of a single institution for a decade was conducted.Longterm outcomes such as pain,mesh infections,enterocutaneous fistula,bowel adhesions and recurrence were assessed.Results:There were 801 primary,12 incisional,and 8 recurrent hernia cases,including 532 females and 289 males with a mean age of 45.62±9.37 years.IPOM PLUS were underwent in 674(82.10%)cases.Polypropylene,dual,titanium,composite meshes were applied in 473(57.61%),208(25.33%),82(9.99%),and 58(7.06%)cases respectively.Intraoperative bleeding occurred in 3(0.37%)cases,seroma in 8(0.97%),wound infection in 4(0.49%),stitch abscess in 2(0.24%).Recurrence was found in 8(0.97%)cases,with 5 used polypropylene mesh and 3 used dual mesh.Mesh infections were discovered in 6(2.88%)cases used dual,and foreign body sensation in 4(0.85%)cases used polypropylene.Three(0.37%)patients had suture site hernia,and 3(0.37%)had chronic sinus.Conclusion:IPOM or IPOM PLUS holds good in small or medium sized ventral hernias.The safety and efficacy of intraperitoneal polypropylene mesh is comparable to that of other synthetic meshes.A mesh overlap of minimum 5 cm beyond defect edge is must to minimise hernia recurrence.Absorbable suture can be considered as alternative to tackers.展开更多
A 75-year-old woman complained of anuria and a sense of discomfort with severe pelvic organ prolapse (POP). We planned tension-free vaginal mesh (TVM) surgery after curing mucosal defects and completing treatment for ...A 75-year-old woman complained of anuria and a sense of discomfort with severe pelvic organ prolapse (POP). We planned tension-free vaginal mesh (TVM) surgery after curing mucosal defects and completing treatment for diabetes mellitus. Anuria and pyelonephritis relapsed repeatedly due to the failure of ring pessary therapy. Surgical treatment was required emergently. We performed a total laparoscopic hysterectomy and uterosacral ligament colpo-suspension (Shull’s method). Although the vaginal apex was supported to a good position, cystocele occurred six months after the initial surgery. A TVM procedure for recurrent cystocele was performed after curing the mucosal defects, and after the improvement of glycemic control. Transvaginal native tissue repair has the advantages of low risk of ureter injury, firm colpo-suspension, and no need for mesh usage. On the other hand, it is not good at treating cystocele. Transvaginal native tissue repair should prove to be a useful surgical option for apical support without mesh.展开更多
文摘<strong>Rationale:</strong> The three-dimensional (3D) computer-made titanium mesh is widely used in the skull repair for those patients receiving decompression of the bone flap. It can restore normal anatomy to a greater extent and make a better appearance. <strong>Case Presentation: </strong>We reported two cases of patients admitted to our hospital who have experienced high scalp tension after skull repair. At first, these two patients underwent decompression of the bone flap, and the physical examination results showed a defect of skull. No neurological symptoms and signs were found. The 3D computed tomography (CT) reconstruction of skull was performed, and then the skull repair with 3D titanium mesh was conducted. But because of high scalp tension, they underwent a second operation, during which we re-trimmed and reduce the arc of the titanium mesh. The scalp incision of both patients healed well and no titanium mesh was exposed. Both patients have a good prognosis. <strong>Lessons:</strong> We highlight that the high tension of scalp due to overstretching after 3D titanium mesh repair for skull defect should be paid much attention to. Trimming and reducing the arc of titanium mesh is an effective treatment for this situation.
文摘Background: Laparoscopic tension-free repair of inguinal hernia was presented in 1990s, promising less pain and short recovery period, but carrying the risk mesh bulging and migration. Objective: We have presented our technique in which central zone of mesh is fixed only after closure of hernial defect. Patients and Methods: This study included 27 males patients (14 indirect inguinal hernias, 9 direct inguinal hernias, 4 both direct and indirect inguinal hernias on the same side). These cases are undergoing tension-free mesh repair after closure of hernial defect, and the mesh is fixed only at its central zone using Gulbran 2, between April 2011 and March 2013. The follow-up period ranged from 6 to 30 months. The intra and postoperative complications were recorded. Results: Mean hospital stay was 1 day. The age of this group of patients ranged from 23 to 63 years (mean, 47 years). The operative time ranged from 30 to 100 minutes (mean, 45 minutes). The intraoperative complications were in form of mild bleeding in 7 patients (25.9%) during hernial sac dissection. Postoperative complications were mild inguinal pain in 4 patients (14.8%) for three weeks. Mild hydrocele in 3 patients (11%) was recorded. No recurrence or bulging at hernia site was noticed during the period of follow-up. Conclusion: Laparoscopic inguinal hernia repair with central mesh fixation after closure of hernial defect is effective, easy and free of complications.
文摘Background: Current techniques in partial auricular reconstruction can utilize an autologous or alloplastic framework covered by a variety of soft tissue envelopes. Objective: Is to evaluate the benefit of using polypropylene mesh to reconstruct helix framework in partial auricular defects covered with local postauricular skin flap. Method: Eleven patients with partial auricular defect were treated by using polypropylene mesh helix framework which is covered with post auricular flap in a two stage repair;clinical results of the procedure were evaluated. Results: This technique achieved satisfactory results in 9 (81.8%) cases. Early Post operative complications: Hematoma formation in one case, mild infection in two cases, edema in two cases, and Partial overlying skin breakdown in one case with failure of technique. Late Post operative complications: Hypertrophic scar in one case, narrow retroauricular sulcus in one case, hair bearing skin over the auricle in one case. Conclusion: It is a simple technique, with satisfactory clinical results, easily done, even under local anesthesia, with no donor site morbidity of autogenous cartilage harvesting, not costly as other alloplastic substitutes, large series and longer follow up period are needed for better evaluation of this technique.
文摘Objective To explore the application of scalp rotation flap in reconstruction of infectious scalp defect with titanium mesh exposure. Methods Twelve patients were treated in this group including 4 males and 8 female. S The defective size ranged from 2. 0 cm × 5. 0 cm to 0.
文摘针对人工目视排查大型旋转过滤设备网片缺陷时存在的效率低下,缺陷与背景之间边界模糊及网孔中的小水珠产生反光现象等问题,提出了一个基于多维特征融合的高效网片缺陷检测算法。引入了泊松图像增强技术,实现了缺陷目标与正常背景区域的平滑融合,增加了小样本缺陷数量的同时解决了缺陷数量分布不均匀的问题。在YOLOv8中融入轻量多维卷积改进的C2fLWDC(C2flightweight multi-dimensional convolution)模块及加权多特征增强模块,既增强了网络对缺陷特征的提取又实现了各级特征的高效融合,提升了对多尺度缺陷样本的表征能力。采用EIOU(efficient intersection over union)定位损失函数,加速了对缺陷目标的准确定位。网片数据集检测结果表明,改进后的算法mAP(mean average precision)达到92%,相较于原始模型提升了16.8个百分点,能很好地完成缺陷目标的检测任务。
文摘Objective:Ventral hernia is an anterior abdominal wall hernia,with an incidence of 2%-13%.Laparoscopic ventral hernia repair is the preferred method worldwide with all the advantages of the laparoscopic technique proven to be an effective treatment option.This study aims to assess the long-term outcomes of laparoscopic management of ventral hernia repair using intraperitoneal onlay mesh(IPOM)or intraperitoneal onlay mesh with defect closure(IPOM PLUS)technique with the usage of variety of synthetic meshes intraperitoneally.Methods:A retrospective study of 821 patients of a single institution for a decade was conducted.Longterm outcomes such as pain,mesh infections,enterocutaneous fistula,bowel adhesions and recurrence were assessed.Results:There were 801 primary,12 incisional,and 8 recurrent hernia cases,including 532 females and 289 males with a mean age of 45.62±9.37 years.IPOM PLUS were underwent in 674(82.10%)cases.Polypropylene,dual,titanium,composite meshes were applied in 473(57.61%),208(25.33%),82(9.99%),and 58(7.06%)cases respectively.Intraoperative bleeding occurred in 3(0.37%)cases,seroma in 8(0.97%),wound infection in 4(0.49%),stitch abscess in 2(0.24%).Recurrence was found in 8(0.97%)cases,with 5 used polypropylene mesh and 3 used dual mesh.Mesh infections were discovered in 6(2.88%)cases used dual,and foreign body sensation in 4(0.85%)cases used polypropylene.Three(0.37%)patients had suture site hernia,and 3(0.37%)had chronic sinus.Conclusion:IPOM or IPOM PLUS holds good in small or medium sized ventral hernias.The safety and efficacy of intraperitoneal polypropylene mesh is comparable to that of other synthetic meshes.A mesh overlap of minimum 5 cm beyond defect edge is must to minimise hernia recurrence.Absorbable suture can be considered as alternative to tackers.
文摘A 75-year-old woman complained of anuria and a sense of discomfort with severe pelvic organ prolapse (POP). We planned tension-free vaginal mesh (TVM) surgery after curing mucosal defects and completing treatment for diabetes mellitus. Anuria and pyelonephritis relapsed repeatedly due to the failure of ring pessary therapy. Surgical treatment was required emergently. We performed a total laparoscopic hysterectomy and uterosacral ligament colpo-suspension (Shull’s method). Although the vaginal apex was supported to a good position, cystocele occurred six months after the initial surgery. A TVM procedure for recurrent cystocele was performed after curing the mucosal defects, and after the improvement of glycemic control. Transvaginal native tissue repair has the advantages of low risk of ureter injury, firm colpo-suspension, and no need for mesh usage. On the other hand, it is not good at treating cystocele. Transvaginal native tissue repair should prove to be a useful surgical option for apical support without mesh.
