Hancock Douglas S, Sharplin Paul K, Larsen Peter D, Phillips Fredrick Ts
1 Orthopaedic Department, Wellington Regional Hospital, Capital and Coast District Health Board, Wellington, New Zealand.
2 Dunedin Hospital, Southern District Health Board, Dunedin, New Zealand.
Hip Int. 2019 Jan;29(1):35-40. doi: 10.1177/1120700018760277. Epub 2018 May 29.
: To assess early radiological and functional outcomes of revision hip surgery with a cementless press-fit design femoral stem.
: A retrospective review of 48 consecutive revision total hip replacements using the RECLAIM revision hip system, between October 2012 and August 2015. Radiographic assessment was undertaken with serial anteroposterior (AP) X-rays of the pelvis. Risk factors for subsidence were evaluated. Prospective clinical follow up was performed on 21 patients to assess functional outcomes.
: Mean stem subsidence was 1.1 mm (95% confidence interval[CI]: 0.63-1.57). Median follow up of 12 months. An inverse relationship was observed between level of subsidence and femoral stem diameter r = -0.45, p = 0.001. Subsidence at the time of follow-up assessment was correlated with initial subsidence (correlation coefficient rho 0.69, p = 0.001). The mean Merle d'Aubigne score at the latest follow up was 14.2 (range 8-17). The mean OHS was 34.1 (range 15-48).
: Early radiological and functional outcomes for the RECLAIM revision system showed very low levels of subsidence and good functional outcomes. There was an association with smaller diameter femoral stems and greater levels of subsidence.
评估采用非骨水泥压配型设计股骨柄的髋关节翻修手术的早期影像学和功能结果。
回顾性分析2012年10月至2015年8月期间连续48例使用RECLAIM髋关节翻修系统进行的全髋关节置换翻修手术。通过骨盆前后位（AP）系列X线片进行影像学评估。评估下沉的危险因素。对21例患者进行前瞻性临床随访以评估功能结果。
股骨柄平均下沉1.1毫米（95%置信区间[CI]：0.63 - 1.57）。中位随访时间为12个月。观察到下沉程度与股骨柄直径之间呈负相关，r = -0.45，p = 0.001。随访评估时的下沉与初始下沉相关（相关系数rho 0.69，p = 0.001）。最新随访时的平均Merle d'Aubigne评分为14.2（范围8 - 17）。平均牛津髋关节评分（OHS）为34.1（范围15 - 48）。
RECLAIM翻修系统的早期影像学和功能结果显示下沉水平非常低且功能结果良好。较小直径的股骨柄与较高的下沉水平有关。
