Reuter Andrew M, Hardie Kyler, Haft Geoffrey, Van Demark Robert, Erie Andrew J
University of South Dakota, Sanford School of Medicine, Sioux Falls, South Dakota.
Avera Orthopedics and Sports Medicine, Sioux Falls, South Dakota.
Radiol Case Rep. 2024 Sep 12;19(12):5788-5793. doi: 10.1016/j.radcr.2024.08.125. eCollection 2024 Dec.
Traumatic pediatric hip dislocations are uncommon and can occur following minor trauma. This injury may be overlooked, as pediatric hip dislocations can reduce spontaneously prior to medical attention. In this scenario, the presenting hip radiographs may provide evidence of a prior transient hip dislocation episode by demonstrating signs of a nonconcentric hip reduction, and prompt further evaluation with advanced imaging. We present a rare case of a traumatic posterior hip dislocation with spontaneous nonconcentric reduction in a child. CT and MRI revealed a block in concentric reduction by the avulsed and entrapped posterior acetabular labrum and contiguous epiphyseal fragment. This case highlights the imaging characteristics of this rare injury, and the importance of early diagnosis to guide surgical management.
创伤性小儿髋关节脱位并不常见，可发生于轻微创伤后。这种损伤可能会被忽视，因为小儿髋关节脱位在就医前可能会自行复位。在这种情况下，现有的髋关节X线片可能会通过显示髋关节非同心复位的迹象，为既往短暂性髋关节脱位发作提供证据，并促使采用先进成像技术进行进一步评估。我们报告一例儿童创伤性后髋关节脱位伴自发非同心复位的罕见病例。CT和MRI显示，髋臼后唇和相邻骨骺碎片撕脱并嵌顿导致同心复位受阻。本病例突出了这种罕见损伤的影像学特征，以及早期诊断对指导手术治疗的重要性。
