Department of Orthopaedics, Henry Ford Hospital, Emeritus, Detroit MI.
Department of Radiology, Henry Ford Hospital, Detroit MI.
J Arthroplasty. 2014 Jun;29(6):1243-7. doi: 10.1016/j.arth.2013.11.010. Epub 2013 Nov 22.
In the early phases, subchondral insufficiency fractures and rapidly destructive osteoarthritis of the hip are often mistaken for osteonecrosis of the hip. Three hip measures were used comparing combined subchondral insufficiency fractures and rapidly destructive 18 osteoarthritis patients to 18 osteonecrosis patients. Due to the rarity of these conditions there was no statistical power. Initial diagnoses for the osteoarthritis patients were recorded. The osteoarthritis group had significantly higher means for Tönnis angle (P < 0.001), lateral center edge angle (P = 0.006), and acetabular extrusion index (P = 0.014). Only 7 of the 18 patients were initially diagnosed without reservation as subchondral insufficiency fracture or rapidly destructive osteoarthritis. Using hip measures will reduce the misdiagnosis of rapid onset osteoarthritis of the hip for osteonecrosis.
在早期阶段，软骨下不全骨折和髋关节快速破坏性骨关节炎常被误诊为股骨头坏死。通过三种髋关节测量方法，将 18 例合并软骨下不全骨折和快速破坏性骨关节炎患者与 18 例股骨头坏死患者进行了比较。由于这些情况较为罕见，因此没有统计学意义。记录了骨关节炎患者的初始诊断。骨关节炎组的 Tönnis 角平均值明显更高（P<0.001），外侧中心边缘角（P=0.006）和髋臼外展指数（P=0.014）更高。18 例患者中仅有 7 例最初被明确诊断为软骨下不全骨折或快速破坏性骨关节炎。使用髋关节测量方法可以减少将髋关节快速发作性骨关节炎误诊为股骨头坏死的情况。
