Fokter S K, Komadina R, Repse-Fokter A, Yerby S A, Kocijancic A, Marc J
Department of Orthopaedic Surgery and Sports Trauma, Celje General Hospital, Oblakova 5, 3000, Celje, Slovenia.
Int Orthop. 2005 Dec;29(6):362-7. doi: 10.1007/s00264-005-0018-2. Epub 2005 Sep 29.
Periprosthetic bone loss after arthroplasty may threaten prosthesis survival. The current study investigated the effect of etidronate therapy on periprosthetic, contralateral hip, and spine bone mineral density (BMD) in a one-year, prospective, randomized, double-blind study on 46 patients after cemented hip arthroplasty. BMD was measured with dual-energy X-ray absorptiometry (DXA). There were no significant differences between mean BMD measurements of the etidronate and placebo groups, with the exception of the mean percent change in the spine at six months and 12 months and in Gruen zone 3 at six months; in all three cases, the etidronate group had significantly greater mean values. These findings suggest that cyclic etidronate therapy has no significant effect in suppressing periprosthetic bone loss following cemented hip arthroplasty.
关节置换术后假体周围骨丢失可能会威胁假体的使用寿命。本研究在一项为期一年的前瞻性、随机、双盲研究中,对46例接受骨水泥型髋关节置换术的患者,调查了依替膦酸治疗对假体周围、对侧髋关节和脊柱骨密度(BMD)的影响。采用双能X线吸收法(DXA)测量骨密度。依替膦酸组和安慰剂组的平均骨密度测量值之间无显著差异,但在6个月和12个月时脊柱的平均变化百分比以及6个月时Gruen 3区除外;在这三种情况下,依替膦酸组的平均值均显著更高。这些发现表明,周期性依替膦酸治疗在抑制骨水泥型髋关节置换术后假体周围骨丢失方面无显著效果。