Armstrong R D, McLaren A C
Department of Surgery, University of Western Ontario Faculty of Medicine, London, Canada.
Orthop Rev. 1987 Feb;16(2):104-8.
A case of an unreducible radial head dislocation found in a 7-year-old girl illustrates the frequent delay in diagnosis associated with radial head dislocation. Her initial radiographs showed the radial neck access not passing through the center of the capitulum, which is diagnostic of radial head dislocation. She had no associated injuries to the elbow joint or neurovascular structures. Closed reduction was not stable, and open reduction revealed the biceps tendon displaced posteriorly and laterally from the radial tubercle around the radial neck, which prevented stable reduction of the anteromedial dislocation of the radial head. Once it was reduced through the radial capitular joint to its normal anatomy, the reduction was stable. Following a routine postoperative course, an excellent result was obtained.
一名7岁女孩出现不可复位的桡骨头脱位病例，说明了与桡骨头脱位相关的诊断经常延迟的情况。她最初的X线片显示桡骨颈轴线未通过肱骨小头中心，这是桡骨头脱位的诊断依据。她的肘关节及神经血管结构没有合并损伤。闭合复位不稳定，切开复位显示肱二头肌腱从桡骨结节向后外侧移位至桡骨颈周围，这妨碍了桡骨头前内侧脱位的稳定复位。一旦通过桡骨小头关节将其复位至正常解剖位置，复位就稳定了。经过常规的术后过程，获得了良好的结果。
