自制外固定支架联合骨迁移法治疗下肢长骨骨折大段缺损

近年来，高能量的四肢骨折发病率在逐年上升。四肢骨折，尤其是四肢粉碎性骨折，若同时伴有大段骨缺损，复位困难，骨缺损难以靠植内完全矫正，同时有肢体短缩、骨折延迟愈合等并发症，在治疗上缺乏良好的方法。我科2002年1月-2005年1月应用自行设计单侧外固定支架一次复位，同时行骨迁移术治疗四肢长骨骨缺损9例，取得满意疗效。[第一段]     

生长因子在种植术前骨缺损修复中的传递方式

各种生长因子传递方法使生长因子在局部骨缺损处发挥稳定而持续的作用,本文对载体系统和基因治疗两种方法来传递的生长因子,在局部骨缺损修复中的作用作一综述。     

关节镜下应用“微骨折”方法修复关节软骨缺损

目的:探讨关节镜下应用“微骨折”技术对膝关节全层关节软骨缺损修复的效果。方法:对68例全层关节软骨缺损患者进行随机分组:实验组(35例),男17例,女18例,平均年龄35.1岁,采用关节清理后应用“微骨折”技术进行处理,即利用骨刀设计的特性和适度的锤击力量造成软骨下的骨组织微小骨折,刺激软骨生长。对照组(33例),男17例,女16例,平均年龄31.6岁,仅作关节清理术。结果:术后随访6~18个月,平均8.6个月,按Lysholm评分标准,实验组明显优于对照组(P<0.01)。结论:关节镜下应用“微骨折”技术能够显著减轻关节疼痛,增加关节活动度,改善关节功能,是一种简单有效的修复全层关节软骨缺损方法。     

Monitoring island flap for fibular graft in 30 patients with long bone defects

To study the effect of vascularized fibulargraft on large defects of long bones and the monitoringmethod for the vascular status of the grafted fibula.     

甲醛固定源同种异体骨移植材料的体外实验研究

OBJECTIVE: To conduct an in vitro study to assess the preliminary possibility of using formalin-fixed, instead of fresh, human bone tissues for allografting. METHODS: Fresh cadaveric bone tissues were fixed by formalin for more than 6 months and dissected into 5 mmx5 mmx5 mm pieces and 5 mmx5 mmx40 mm sticks, followed by chemical treatments to prepare the allograft bone materials. When alls treatments were completed, the bone grafts were centrifuged and their properties and cellular compatibility assessed in comparison with the currently used bone grafts clinically. RESULTS: The residual formaldehyde of the fixed allograft bone material was much below the controlled level and no significant differences were noted between the bone graft materials tested in regard to the chemical and mechanical properties and biocompatibility. CONCLUSION: This material we have prepared may meet the clinical demands for bone grafting, with good biocompatibility and less chance for infection by pathological agents.     

Mollosil软衬式赝复体修复单侧上颌骨缺损的初步评价

【目的】探讨Mollosil软衬式赝复体用于单侧上颌骨缺损修复的临床效果。【方法】为8例单侧上颌骨缺损患者制作常规式上颌赝复体,戴用1个月适应后用Mollosil硅橡胶软衬材料进行衬垫,制作软衬式赝复体。对常规式上颌赝复体和软衬式赝复体戴用后患者的咀嚼效能和临床满意度(包括咀嚼功能、语音功能、义齿固位稳定性和口鼻腔封闭情况)进行比较分析。【结果】与常规式上颌赝复体相比,Mollosil软衬式赝复体修复单侧上颌骨缺损可明显增加患者的咀嚼效能,提高患者的临床满意度。【结论】Mollosil软衬式赝复体修复单侧上颌骨缺损具有独特的优点,临床修复时可考虑使用。     

同种异体骨移植治疗骨肿瘤切除后骨缺损

目的 :评价同种异体骨段 (关节 )移植重建四肢恶性肿瘤所致的大段骨缺损的方法、观察和疗效。方法 :应用内锁髓内钉、髋动力加压钢板、髁支持钢板等内固定器材和同种异体骨半关节或骨段移植治疗四肢恶性骨肿瘤 18例 ,随访时间 13～ 2 4个月。结果 :15例植骨愈合 ,1例骨不连 ,1例肿瘤复发截肢 ,1例内固定松动而行更换固定 ,术后总优良率 83 3 3 %。感染、延迟愈合、内固定失败、关节功能障碍为主要并发症。结论 :同种异体骨加合适内固定器械是一种治疗四肢骨肿瘤切除术后骨缺损的有效方法 ,值得临床推广。