Background:The treatment for long bone defects has been a hot topic in the field of regenerative medicine.This study aimed to evaluate the therapeutic effects of calcium sulfate (CS) combined with platelet-rich pla...Background:The treatment for long bone defects has been a hot topic in the field of regenerative medicine.This study aimed to evaluate the therapeutic effects of calcium sulfate (CS) combined with platelet-rich plasma (PRP) on long bone defect restoration.Methods:A radial bone defect model was constructed through an osteotomy using New Zealand rabbits.The rabbits were randomly divided into four groups (n =10 in each group):a CS combined with PRP (CS-PRP) group,a CS group,a PRP group,and a positive (recombinant human bone morphogenetic protein-2) control group.PRP was prepared from autologous blood using a two-step centrifugation process.CS-PRP was obtained by mixing hemihydrate CS with PRP.Radiographs and histologic micrographs were generated.The percentage of bone regenerated bone area in each rabbit was calculated at 10 weeks.One-way analysis of variance was performed in this study.Results:The radiographs and histologic micrographs showed bone restoration in the CS-PRP and positive control groups,while nonunion was observed in the CS and PRP groups.The percentages of bone regenerated bone area in the CS-PRP (84.60 ± 2.87%) and positive control (52.21 ± 4.53%) groups were significantly greater than those in the CS group (12.34 ± 2.17%) and PRP group (16.52 ± 4.22%) (P 〈 0.001).In addition,the bone strength of CS-PRP group (43.l 0 ± 4.10%) was significantly greater than that of the CS group (20.10 ± 3.70%) or PRP group (25.10 ± 2.10%) (P 〈 0.001).Conclusion:CS-PRP functions as an effective treatment for long bone defects through stimulating bone regeneration and enhancing new bone strength.展开更多
目的探讨抗生素骨水泥联合Ilizarov技术个性化治疗长骨感染性骨缺损的方法和临床疗效。方法自2011年6月至2017年1月,我院应用Ilizarov技术个性化治疗股骨、胫骨、肱骨骨折术后感染性骨缺损21例,男14例,女7例;年龄18~65岁,平均37岁。其...目的探讨抗生素骨水泥联合Ilizarov技术个性化治疗长骨感染性骨缺损的方法和临床疗效。方法自2011年6月至2017年1月,我院应用Ilizarov技术个性化治疗股骨、胫骨、肱骨骨折术后感染性骨缺损21例,男14例,女7例;年龄18~65岁,平均37岁。其中胫骨骨缺损12例,清创后骨缺损范围平均7.2cm;股骨骨缺损7例,清创后骨缺损范围平均8.5cm;肱骨骨缺损2例,清创后骨缺损范围平均6cm。手术分两期进行:一期彻底清创,植入含敏感抗生素骨水泥,采用单边或环形外固定架固定,预留截骨延长的外固定架长度,控制感染;二期感染消灭后,根据Ilizarov技术进行截骨延长。结果所有患者术后随访12~24个月,平均18.5个月。外固定架固定时间9~21个月,平均17.2个月。外固定架指数(external fixation index,EFI)平均为2.38个月/cm。采用伊里扎洛夫方法研究与应用学会(association for the study and application of the method of Ilizarov,ASAMI)评价标准评价,骨性结果:优13例,良6例,中2例,优良率为90.5%;功能结果:优11例,良7例,中3例,优良率为85.7%。结论抗生素骨水泥联合Ilizarov技术可有效控制感染,纠正患肢畸形,重建肢体的功能,是治疗长骨感染性骨缺损的有效方法。展开更多
[目的]探讨应用Ilizarov技术一期短缩延长术治疗感染性大段骨缺损的方法及临床疗效。[方法]2000~2013年13年间,应用Ilizarov技术一期短缩延长术治疗下肢大段感染性骨缺损60例。男42例,女18例;治疗时年龄:最小6岁,最大52岁,平均34岁。...[目的]探讨应用Ilizarov技术一期短缩延长术治疗感染性大段骨缺损的方法及临床疗效。[方法]2000~2013年13年间,应用Ilizarov技术一期短缩延长术治疗下肢大段感染性骨缺损60例。男42例,女18例;治疗时年龄:最小6岁,最大52岁,平均34岁。股骨20例,胫骨40例,合并足下垂30例。骨缺损长度7~9 cm 16例,9~12 cm 18例,12 cm以上26例,最长缺损25 cm。治疗时仍有感染的42例,股骨15例,胫骨27例;感染静止18例。治疗过程:彻底切除感染病灶,从切除骨端清除髓腔内炎症肉芽组织,骨髓腔内及残存髓腔内放置川嶌式持续洗净管,生理盐水加敏感抗生素洗净,安装Ilizarov环形外固定架,一期尽可能加压短缩使两断端接合;如缺损范围过长或软组织臃肿,一期不能完成加压短缩对接,术后缓慢加压短缩,直到两断端对接。骨干骺端皮质骨截骨,截骨后2周开始延长,每日延长0.5~1 mm,分4~6次进行,直到两下肢等长。对接点部分骨缺损,股骨12例,胫骨26例,经再次补充植骨16例,碎骨术8例,骨断端愈合及延长段骨皮质化完成后,拆除外固定。[结果]炎症全部治愈。股骨20例全部对接点愈合,两下肢等长;13例膝关节僵硬,7例能部分屈伸,1例合并髋内翻。胫骨40例,38例两下肢等长,2例下肢短缩1 cm,自感满意。足下垂30例同时矫正27例,2例部分矫正,1例出院时尚未矫正。[结论]Ilizarov技术一期短缩延长术是治疗大段感染性骨缺损肯定有效的方法,值得普及推广。展开更多
文摘Background:The treatment for long bone defects has been a hot topic in the field of regenerative medicine.This study aimed to evaluate the therapeutic effects of calcium sulfate (CS) combined with platelet-rich plasma (PRP) on long bone defect restoration.Methods:A radial bone defect model was constructed through an osteotomy using New Zealand rabbits.The rabbits were randomly divided into four groups (n =10 in each group):a CS combined with PRP (CS-PRP) group,a CS group,a PRP group,and a positive (recombinant human bone morphogenetic protein-2) control group.PRP was prepared from autologous blood using a two-step centrifugation process.CS-PRP was obtained by mixing hemihydrate CS with PRP.Radiographs and histologic micrographs were generated.The percentage of bone regenerated bone area in each rabbit was calculated at 10 weeks.One-way analysis of variance was performed in this study.Results:The radiographs and histologic micrographs showed bone restoration in the CS-PRP and positive control groups,while nonunion was observed in the CS and PRP groups.The percentages of bone regenerated bone area in the CS-PRP (84.60 ± 2.87%) and positive control (52.21 ± 4.53%) groups were significantly greater than those in the CS group (12.34 ± 2.17%) and PRP group (16.52 ± 4.22%) (P 〈 0.001).In addition,the bone strength of CS-PRP group (43.l 0 ± 4.10%) was significantly greater than that of the CS group (20.10 ± 3.70%) or PRP group (25.10 ± 2.10%) (P 〈 0.001).Conclusion:CS-PRP functions as an effective treatment for long bone defects through stimulating bone regeneration and enhancing new bone strength.
文摘目的探讨抗生素骨水泥联合Ilizarov技术个性化治疗长骨感染性骨缺损的方法和临床疗效。方法自2011年6月至2017年1月,我院应用Ilizarov技术个性化治疗股骨、胫骨、肱骨骨折术后感染性骨缺损21例,男14例,女7例;年龄18~65岁,平均37岁。其中胫骨骨缺损12例,清创后骨缺损范围平均7.2cm;股骨骨缺损7例,清创后骨缺损范围平均8.5cm;肱骨骨缺损2例,清创后骨缺损范围平均6cm。手术分两期进行:一期彻底清创,植入含敏感抗生素骨水泥,采用单边或环形外固定架固定,预留截骨延长的外固定架长度,控制感染;二期感染消灭后,根据Ilizarov技术进行截骨延长。结果所有患者术后随访12~24个月,平均18.5个月。外固定架固定时间9~21个月,平均17.2个月。外固定架指数(external fixation index,EFI)平均为2.38个月/cm。采用伊里扎洛夫方法研究与应用学会(association for the study and application of the method of Ilizarov,ASAMI)评价标准评价,骨性结果:优13例,良6例,中2例,优良率为90.5%;功能结果:优11例,良7例,中3例,优良率为85.7%。结论抗生素骨水泥联合Ilizarov技术可有效控制感染,纠正患肢畸形,重建肢体的功能,是治疗长骨感染性骨缺损的有效方法。
文摘[目的]探讨应用Ilizarov技术一期短缩延长术治疗感染性大段骨缺损的方法及临床疗效。[方法]2000~2013年13年间,应用Ilizarov技术一期短缩延长术治疗下肢大段感染性骨缺损60例。男42例,女18例;治疗时年龄:最小6岁,最大52岁,平均34岁。股骨20例,胫骨40例,合并足下垂30例。骨缺损长度7~9 cm 16例,9~12 cm 18例,12 cm以上26例,最长缺损25 cm。治疗时仍有感染的42例,股骨15例,胫骨27例;感染静止18例。治疗过程:彻底切除感染病灶,从切除骨端清除髓腔内炎症肉芽组织,骨髓腔内及残存髓腔内放置川嶌式持续洗净管,生理盐水加敏感抗生素洗净,安装Ilizarov环形外固定架,一期尽可能加压短缩使两断端接合;如缺损范围过长或软组织臃肿,一期不能完成加压短缩对接,术后缓慢加压短缩,直到两断端对接。骨干骺端皮质骨截骨,截骨后2周开始延长,每日延长0.5~1 mm,分4~6次进行,直到两下肢等长。对接点部分骨缺损,股骨12例,胫骨26例,经再次补充植骨16例,碎骨术8例,骨断端愈合及延长段骨皮质化完成后,拆除外固定。[结果]炎症全部治愈。股骨20例全部对接点愈合,两下肢等长;13例膝关节僵硬,7例能部分屈伸,1例合并髋内翻。胫骨40例,38例两下肢等长,2例下肢短缩1 cm,自感满意。足下垂30例同时矫正27例,2例部分矫正,1例出院时尚未矫正。[结论]Ilizarov技术一期短缩延长术是治疗大段感染性骨缺损肯定有效的方法,值得普及推广。