骨痂延长治疗儿童股骨化脓性骨髓炎后骨缺损及肢体短缩

Callus distraction in bone defect and leg shortening of femur after osteomyelitis

目的：探讨外固定支架行骨痂延长治疗儿童股骨化脓性骨髓炎后骨缺损及肢体短缩的疗效。方法：采用外固定支架对19例儿童股骨化脓性骨髓炎后骨缺损及肢体短缩的患者行骨痂延长术,术前患肢平均骨缺损长度1.3cm,患肢平均短缩4.8 cm。结果：所有病例随访21~82个月,骨不连接处全部愈合,骨延长区骨生长满意。骨延长4.5~8.0cm,平均外固定指数39.7 d/cm。依据Paley的评定标准进行骨愈合评定,优为14例,良为5例;功能评定优为11例,良为8例。结论：外固定支架行骨痂延长是治疗儿童股骨化脓性骨髓炎后骨缺损及肢体短缩的可靠方法。

Objective： To explore the efficacy of callus distraction performed by exaternal fixtor in the reconstruction of bone defect and leg shortening of femur after osteomyelitis. Methods： Nineteen child patients with bone defect and leg shortening after ostemomyelitis were treated by callus distraction with external fixator.The mean length of the bone defect was 1.3 cm.The mean leg-length discrepancy was 4.8 cm. Results： All patients were followed up for 21-82 months.The bone lengthening area grew well,the length of callus distraction was 4.5-8.0 cm,and the mean radiographic consolidation index was 39.7 d/cm.According to the Paley＇s criteria,the healing effect of 14 cases was excellent,and that of the rest 5 cases was good.The functional recovery of 11 cases was excellent,and that of the rest 8 cases was good. Conclusion： Callus distraction is a reliable method in the reconstruction of bone defect and leg shortening caused by ostemomyelitis.