Baynham G C, Lucie R S, Cummings R J
University Hospital of Jacksonville, Florida.
J Pediatr Orthop. 1991 Mar-Apr;11(2):187-90. doi: 10.1097/01241398-199103000-00009.
Two patients developed femoral neck fractures as a complication of in situ pinning for slipped capital femoral epiphysis (SCFE) by surgeons who each used a cannulated screw system. Both patients exhibited recurrent hip pain, femoral neck fracture, and coxa vara after asymptomatic postoperative intervals of 2 and 6 months, respectively. The fracture in one patient healed with weight relief alone: the other persisted, requiring a vascularized pedicle bone graft. Bone biopsy at surgery disclosed avascular necrosis (AVN). Based on preliminary studies of heat production during reaming, we speculate that these fractures developed through areas of AVN secondary to thermal injury.
两名患者因股骨头骨骺滑脱（SCFE）原位穿针固定术而发生股骨颈骨折，这两位外科医生均使用了空心钉系统。两名患者分别在术后无症状间隔2个月和6个月后出现复发性髋关节疼痛、股骨颈骨折和髋内翻。其中一名患者的骨折仅通过减轻负重而愈合，另一名患者的骨折持续存在，需要带血管蒂骨移植。手术中的骨活检显示为缺血性坏死（AVN）。基于对扩孔时产热的初步研究，我们推测这些骨折是通过继发于热损伤的AVN区域发展而来的。
