Canale S T, Casillas M, Banta J V
Department of Orthopaedic Surgery, University of Tennessee-Campbell Clinic, Memphis, USA.
J Pediatr Orthop. 1997 Mar-Apr;17(2):212-5. doi: 10.1097/00004694-199703000-00014.
Two patients had displaced femoral neck fractures at the bone-screw interface after in situ fixation of slipped capital femoral epiphysis. Both fractures required closed reduction and internal fixation. Inadvertent derotation of the femur occurred in both patients and allowed fixation of the fracture through the intramedullary canal of the femoral neck without anterior penetration of the pins into the joint; a nonunion occurred in this patient. The other patient developed chondrolysis and avascular necrosis. Because the femoral neck is vulnerable to stress fractures in young adults, there is some question whether pins placed anteriorly through the femoral neck cortex should be removed.
两名患者在原位固定股骨头骨骺滑脱后，在骨螺钉界面处发生了股骨颈骨折移位。两处骨折均需闭合复位和内固定。两名患者均发生了股骨意外旋转，使得骨折能够通过股骨颈髓内管固定，而钢针未向前穿透进入关节；该患者发生了骨不连。另一名患者出现了软骨溶解和缺血性坏死。由于年轻成人的股骨颈易发生应力性骨折，对于是否应取出经股骨颈皮质前方置入的钢针存在一些疑问。
