Objective:To report the clinical outcome of repairing massive bone defects biologically in limbs by homeochronous using structural bone allografts with intramedullary vascularized fibular autografts. Methods: From Jan...Objective:To report the clinical outcome of repairing massive bone defects biologically in limbs by homeochronous using structural bone allografts with intramedullary vascularized fibular autografts. Methods: From January 2001 to December 2005, large bone defects in 19 patients (11 men and 8 women, aged 6 to 35 years) were repaired by structural bone allografts with intramedullary vascularized fibular autografts in the homeochronous period. The range of the length of bone defects was 11 to 25 cm (mean 17.6 cm), length of vascularized free fibular was 15 to 29 cm (mean 19.2 cm), length of massive bone allografts was 11 to 24 cm (mean 17.1 cm). Location of massive bone defects was in humerus(n=1), in femur(n=9) and in tibia(n=9), respectively. Results: After 9 to 69 months (mean 38.2 months) follow-up, wounds of donor and recipient sites were healed inⅠstage, monitoring-flaps were alive, eject reaction of massive bone allografts were slight, no complications in donor limbs. Fifteen patients had the evidence of radiographic union 3 to 6 months after surgery, 3 cases united 8 months later, and the remained one case of malignant synovioma in distal femur recurred and amputated the leg 2.5 months, postoperatively. Five patients had been removed internal fixation, complete bone unions were found one year postoperatively. None of massive bone allografts were absorbed or collapsed at last follow-up. Conclusion: The homeochronous usage of structural bone allograft with an intramedullary vascularized fibular autograft can biologically obtain a structure with the immediate mechanical strength of the allograft, a potential result of revascularization through the vascularized fibula, and accelerate bone union not only between fibular autograft and the host but also between massive bone allograft and the host.展开更多
目的:综合分析游离组织瓣修复颌面部缺损后血管蒂异位骨化的发生率及其影响因素。方法:检索PubMed、Web of Science、中国知网数据库(CNKI),关键词为“pedicle ossification”“free flap”“maxillofacial”,检索时间为2000年1月1日至2...目的:综合分析游离组织瓣修复颌面部缺损后血管蒂异位骨化的发生率及其影响因素。方法:检索PubMed、Web of Science、中国知网数据库(CNKI),关键词为“pedicle ossification”“free flap”“maxillofacial”,检索时间为2000年1月1日至2021年12月1日的有关游离组织瓣血管蒂异位骨化的文献,采用RevMan 5.4软件进行meta分析。结果:纳入文献5篇,共计病例829例。影像学上可见的血管蒂异位骨化发生率约为11%;有临床症状的发生率约为2%。合并比值比显示,血管蒂异位骨化的发生与组织瓣类型有显著相关性(OR=14.01,95%CI=3.58~54.85,P<0.001),但其与性别(OR=1.63,95%CI=1.00~2.67,P=0.05)、重建部位(OR=0.90,95%CI=0.46~1.74,P>0.05)、是否做过放疗(OR=0.79,95%CI=0.52~1.22,P>0.05)无显著相关性。结论:游离组织瓣修复颌面部缺损后,影像学上可见的血管蒂异位骨化发生率约为11%,有临床症状的发生率约为2%。其发生主要与游离组织瓣的类型有关,多好发于游离腓骨瓣。展开更多
文摘Objective:To report the clinical outcome of repairing massive bone defects biologically in limbs by homeochronous using structural bone allografts with intramedullary vascularized fibular autografts. Methods: From January 2001 to December 2005, large bone defects in 19 patients (11 men and 8 women, aged 6 to 35 years) were repaired by structural bone allografts with intramedullary vascularized fibular autografts in the homeochronous period. The range of the length of bone defects was 11 to 25 cm (mean 17.6 cm), length of vascularized free fibular was 15 to 29 cm (mean 19.2 cm), length of massive bone allografts was 11 to 24 cm (mean 17.1 cm). Location of massive bone defects was in humerus(n=1), in femur(n=9) and in tibia(n=9), respectively. Results: After 9 to 69 months (mean 38.2 months) follow-up, wounds of donor and recipient sites were healed inⅠstage, monitoring-flaps were alive, eject reaction of massive bone allografts were slight, no complications in donor limbs. Fifteen patients had the evidence of radiographic union 3 to 6 months after surgery, 3 cases united 8 months later, and the remained one case of malignant synovioma in distal femur recurred and amputated the leg 2.5 months, postoperatively. Five patients had been removed internal fixation, complete bone unions were found one year postoperatively. None of massive bone allografts were absorbed or collapsed at last follow-up. Conclusion: The homeochronous usage of structural bone allograft with an intramedullary vascularized fibular autograft can biologically obtain a structure with the immediate mechanical strength of the allograft, a potential result of revascularization through the vascularized fibula, and accelerate bone union not only between fibular autograft and the host but also between massive bone allograft and the host.
