کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4062982 | 1604035 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Distal Fixation of Proximally Coated Tapered Stems May Predispose to a Failure of Osteointegration Distal Fixation of Proximally Coated Tapered Stems May Predispose to a Failure of Osteointegration](/preview/png/4062982.png)
Despite excellent long-term results of proximally coated tapered wedge femoral stems in noncemented total hip arthroplasty, we have consistently observed a minority fail to achieve osteointegration. We retrospectively reviewed 320 consecutive total hip arthroplasties performed by a single surgeon using a single stem over a 4-year period. Clinical and radiographic parameters were analyzed for risk factors predisposing to a failure of osteointegration, defined as a progressive circumferential radiolucency around the proximal porous coating on both anteroposterior and lateral radiographs. Fifteen stems (4.7%) failed to osteointegrate; 3 underwent femoral revision for persistent thigh pain, whereas the remainder expressed varying degrees of symptomatology. Risk factors associated with failure of osteointegration were male sex, a smaller canal-flare index, larger stem size, and greater canal fill at the mid- and distal-thirds of the stem. Awareness of variability in proximal femoral morphology and problems caused by distal fixation with a proximally coated implant may help avoid this uncommon but potentially serious complication.
Journal: The Journal of Arthroplasty - Volume 26, Issue 6, Supplement, September 2011, Pages 78–83