Isaacson Mark J, Bunn Kevin J, Incavo Stephen J
Department of Orthopaedic Surgery, Houston Methodist Hospital, Houston, TX, USA.
Arthroplast Today. 2015 Sep 4;1(3):73-75. doi: 10.1016/j.artd.2015.05.004. eCollection 2015 Sep.
While uncommon, trochanteric-pelvic impingement may lead to significant lateral hip pain. We defined "impingement distance" as the radiographic distance from the medial aspect of the greater trochanter and the corresponding lateral edge of the acetabular bone or component and compared this to the contralateral normal hip. We present two painful total hip replacement (THR) cases, each featuring a patient with severe lateral hip pain when walking and sitting. Both patients had diminished femoral offset and trochanteric-pelvic clearance, compared to the contralateral normal hip. The impingement distance was increased an average of 10 mm with the exchange to a longer femoral head. Both patients had immediate and complete pain relief with operative treatment to increase the impingement distance.
虽然转子-骨盆撞击并不常见，但可能导致严重的髋关节外侧疼痛。我们将“撞击距离”定义为从大转子内侧到髋臼骨或假体相应外侧边缘的影像学距离，并将其与对侧正常髋关节进行比较。我们展示了两例疼痛性全髋关节置换（THR）病例，每例患者在行走和坐立时均有严重的髋关节外侧疼痛。与对侧正常髋关节相比，这两名患者的股骨偏心距和转子-骨盆间隙均减小。更换为更长的股骨头后，撞击距离平均增加了10毫米。两名患者通过手术治疗增加撞击距离后，疼痛立即完全缓解。
