A roentgen stereophotogrammetric analysis of unicompartmental knee arthroplasty

被引：15

作者：

Soavi, R ^{[1
]}

Loreti, I ^{[1
]}

Bragonzoni, L ^{[1
]}

La Palombara, P ^{[1
]}

Visani, A ^{[1
]}

Marcacci, M ^{[1
]}

机构：

[1] Ist Ortoped Rizzoli, Biomech Lab, Bologna, Italy

来源：

JOURNAL OF ARTHROPLASTY | 2002年 / 17卷 / 05期

关键词：

unicompartmental knee arthroplasty; micromotion; loosening; deformation; roentgen stereophotogrammetric analysis (RSA);

D O I：

10.1054/arth.2002.32139

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：

Roentgen stereophotogrammetric analysis (RSA) was used to investigate the stability of the tibial component in unicompartmental knee arthroplasty. Twenty patients were implanted with a Howmedica Duracon UNI prosthesis (Limerick, Ireland) and studied for an average follow-LIP of 30 months. In most cases, the displacements detected at 1-year follow-up were small (ie, not exceeding 0.5 mm for translations and not exceeding 1.0 for rotations). Only 1 patient showed signs of mechanical loosening as the prosthesis continued to migrate, reaching 3.2 nun of total motion at 4-year follow-up. RSA did not show any deformation in the polyethylene except for the case of loosening. The clinical results were excellent and good according to the Hospital for Special Surgery scoring system. No correlation was found among demographic, clinical, and RSA data.

引用

页码：556 / 561

页数：6

共 28 条

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