Varus Stem Positioning Does Not Affect Long-term Functional Outcome in Cementless Anatomical Total Hip Arthroplasty.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 283
- 试验地点
- 1
- 主要终点
- Long-term survival of THA with varus or neutral cementless fixation of a proximal HA-coated anatomic tapered femoral stem.
研究概览
简要总结
Varus positioning is the most common femoral malposition in total hip arthroplasty (THA). The aim of this study was to compare the long-term results of an anatomical cementless femoral stem positioned in varus with those in neutral alignment.
详细描述
Data were prospectively collected and retrospectively reviewed for all patients who received a cementless anatomical femoral stem in THA between 1998 and 2008. After exclusion criteria applied, 127 stems had an varus axis deviated by more than 3 degrees (varus group) and 156 had an alignment between 0 and 2.9° from the femoral axis (neutral group). Survivorship rates, complications, clinical scores, thigh pain, radiological score, cortical hypertrophy and filling rate were analyzed. Mean follow-up was 10 years.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •All patients received by several senior surgeons, the same standardized posterolateral total hip arthroplasty, and the same rehabilitation protocol.
排除标准
- •Etiologies other than osteoarthritis (osteonecrosis, fracture, dysplasia, rheumatoïd arthritis),
- •Complex cases with additional procedure,
- •Dual-taper modular or cemented stem,
- •Incomplete preoperative data or less than one-year postoperative data.
结局指标
主要结局
Long-term survival of THA with varus or neutral cementless fixation of a proximal HA-coated anatomic tapered femoral stem.
时间窗: Survival evaluation was carried out through study completion at an average of 10 years by the surgeon.
Kaplan-Meier survivorships free of revision of the femoral component for any reason, femoral fracture and revision of femoral component for fracture were calculated and compared by log-rank test for both group.
次要结局
- Long-term clinical outcomes with varus or neutral femoral stem.(Clinical evaluation was carried out through study completion at an average of 10 years by the surgeon.)
- Long-term radiological outcomes with varus or neutral femoral stem.(Radiological evaluation was carried out through study completion at an average of 10 years by the surgeon.)