A software tool for prediction of prosthesis failure at the carpometacarpal joint of the thumb

被引：3
作者：
Tandara, A. A. [1 ]
Capeller, L. J. [2 ]
Jarczok, M. N. [3 ]
Mayrhofer, P. [4 ,5 ]
Jung, M. [6 ]
Daecke, W. [7 ]
机构：
[1] Univ Heidelberg Hosp, Dept Surg, D-69120 Heidelberg, Germany
[2] Surg Outpatient Clin Wiesloch, Wiesloch, Germany
[3] Heidelberg Univ, Mannheim Inst Publ Hlth Social & Prevent Med, Mannheim, Germany
[4] Leopold Franzens Univ Innsbruck, Geometry, Innsbruck, Austria
[5] Leopold Franzens Univ Innsbruck, CAD, Innsbruck, Austria
[6] OCM, Munich, Germany
[7] Frankfurt Hochst Clin, Frankfurt, Germany
来源：
JOURNAL OF HAND SURGERY-EUROPEAN VOLUME | 2015年 / 40卷 / 04期
关键词：
Ein-Bild-Rontgen-Analyse (EBRA); carpometacarpal arthritis; implants; loosening; prediction; FOLLOW-UP; TRAPEZIOMETACARPAL OSTEOARTHRITIS; ELEKTRA PROSTHESIS; ARTHROPLASTY; MIGRATION;
D O I：
10.1177/1753193414548644
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：
Early recognition of prosthesis failure is difficult. A tool that helps to identify faulty prosthesis - a cause of early implant loosening - is needed. The aim of this study was to detect early implant loosening by applying a software program EBRA (Ein-Bild-Rontgen-Analyse). EBRA was applied to the radiographs of a series of 76 patients, with a total of 102 thumb carpometacarpal joint de la Caffiniere prostheses, with an average follow-up of 14.5 months (range 0.5-24). The data were used to draw graphs of cup migration and inclination over time. Corresponding regression lines of migration and inclination in relation to time were made up to the point of loosening. The gradient of regression was calculated for all implants. The gradient of regression on the x and y axes differed significantly between stable and loose implants. Loose and stable implants showed significantly different cup migration on the x and y axes over time. EBRA proved to be a reliable tool to visualize cup migration in the trapeziometacarpal joint and to predict implant failure.
引用
收藏
页码：364 / 369
页数：6
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