Andersen E, Bruun C
Department of Orthopaedic Surgery, Esbjerg Central Hospital, Denmark.
Clin Orthop Relat Res. 1989 Apr(241):200-2.
Thermal injury is a well-known complication during mechanical manipulation of cortical bone. In order to investigate the magnitude of the problem in relation to cancellous bone, the temperature elevation in the head of the femur during reaming for a sliding screw osteosynthesis was measured in ten patients. Temperatures in excess of 50 degrees for a duration of more than one minute were found within approximately 2 mm from the periphery of the reamer. This finding implies that the thread of the screw will be placed in an osteonecrotic zone.
热损伤是皮质骨机械操作过程中一种众所周知的并发症。为了研究与松质骨相关问题的严重程度，对10例患者在进行滑动螺钉接骨术扩孔时股骨头部的温度升高情况进行了测量。在距扩孔钻周边约2毫米范围内发现温度超过50度且持续时间超过1分钟。这一发现意味着螺钉的螺纹将置于骨坏死区域。
