Periprosthetic bone remodeling around a prosthesis for distal femoral tumors - Longitudinal follow-up

被引：9

作者：

Davis, AM

Damani, M

White, LM

Wunder, JS

Griffin, AM

Bell, RS

机构：

[1] Univ Toronto, Mt Sinai Hosp, Musculoskeletal Oncol Unit, Toronto, ON M5G 1X5, Canada

[2] Torento Rehabil Inst, Toronto, ON, Canada

[3] Univ Toronto, Mt Sinai Hosp, Dept Med Imaging, Toronto, ON M5G 1X5, Canada

来源：

JOURNAL OF ARTHROPLASTY | 2005年 / 20卷 / 02期

基金：

加拿大健康研究院;

关键词：

DEXA; stress shielding; uncemented endoprothesis; tumor; bone loss;

D O I：

10.1016/j.arth.2004.10.009

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：

Serial measurements using dual-energy x-ray absorptiometry (DEXA) were undertaken to evaluate progressive periprosthetic bone loss in patients treated for primary bone turners of the distal femur using an Uncemented tumor prosthesis. Twelve patients underwent sequential DEXA analysis oil average 26.5 and 90.9 months postsurgery. Changes in bone mineral density were measured in regions of interest (ROIs) around the prosthesis stem. The test-retest reliability coefficient (r) ranged from 0.92 to 0.99 for all ROI. In the most distal ROI (ROI), 10 of 11 patients with 2 measurements showed no change or a small increase in absolute bone mineral density. The results ill other ROIs were similar. This longitudinal DEXA data suggest that progressive bone resorption is not problematic with an uncemented distal femur endoprosthesis at intermediate follow-up. (C) 2005 Elsevier Inc. All rights reserved.

引用

页码：219 / 224

页数：6

共 37 条

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The outcome and functional results of diaphyseal endoprostheses after tumour excision [J].