Metal-on-Metal Hip Resurfacing Radiographic Evaluation Techniques

被引：12

作者：

Ramakrishnan, Raina ^{[1
]}

Jaffe, William L. ^{[2
]}

Kennedy, William R. ^{[3
]}

机构：

[1] Stryker Orthopaed, Dept Clin Res, Mahwah, NJ 07430 USA

[2] NYU, Hosp Joint Dis, Dept Orthopaed Surg, New York, NY USA

[3] Kennedy White Ortho Ctr, Sarasota, FL USA

来源：

JOURNAL OF ARTHROPLASTY | 2008年 / 23卷 / 08期

关键词：

hip resurfacing; metal-on-metal; radiographic analysis; femoral component subsidence; neck impingement;

D O I：

10.1016/j.arth.2007.09.021

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

摘要：

Hip surfacing devices require a new radiographic evaluation technique owing to femoral components with short or no stems. Fourteen US surgeons implanted 1148 metal-on-metal hip resurfacing (HR) devices in a US-FDA-IDE clinical trial, which began in 2001. In this multi-center, prospective Study, 337 patients (mean age, 50.1 years) were enrolled as a Study group of unilateral HR arthroplasties. Radiographs of 292 HR arthroplasties at a minimum 2-year follow-up (maximum 3 years) were reviewed. There were 10 patients with radiographic evidence of femoral component instability beyond 2 years, as evidenced by subsidence >= 5mm. of these, 7 did not have clinical symptoms associated with femoral component instability. in the Study group, 24 revisions were reported, of which 8 were due to femoral neck fractures, 4 were due to acetabular component loosening, 11 Were Clue to femoral component loosening, and 1 due to dislocation.

引用

页码：1099 / 1104

页数：6