Radiographic Comparison of Mobile-Bearing Partial Knee Single-Peg Versus Twin-Peg Design

被引：46

作者：

Hurst, Jason M. ^{[1
]}

Berend, Keith R. ^{[1
,2
,3
]}

Adams, Joanne B. ^{[1
]}

Lombardi, Adolph V., Jr. ^{[1
,2
,3
]}

机构：

[1] Joint Implant Surg Inc, New Albany, OH 43054 USA

[2] Ohio State Univ, Dept Orthopaed, Wexner Med Ctr, Columbus, OH 43210 USA

[3] Mt Carmel Hlth Syst, New Albany, OH USA

来源：

JOURNAL OF ARTHROPLASTY | 2015年 / 30卷 / 03期

关键词：

unicompartmental knee arthroplasty; partial knee arthroplasty; component design; radiographic analysis; surgical technique; instrumentation; ARTHROPLASTY; REPLACEMENT; SURVIVAL;

D O I：

10.1016/j.arth.2014.10.015

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：

100224 [整形外科学];

摘要：

The femoral component and proprietary instrumentation of a mobile-bearing unicompartmental knee arthroplasty (UKA) was redesigned with an additional peg for enhanced fixation, 15 degrees of extra femoral surface for contact in deep flexion, more rounded profile, better fit into the milled surface, and redesigned intramedullary based instrumentation. To assess the benefit of these changes, we compared postoperative radiographs of 219 single-peg and 186 twin-peg UKAs done in 2008-2011. All surviving knees demonstrated satisfactory position and alignmentwith no radiolucencies observed. Radiographic analysis showed improved and consistent component positioning with the twin-peg design implanted with updated instrumentation compared with the single-peg. The radiographic benefits of improved implant positioning using the twin-peg component and updated instrumentation are clear and carry tremendous potential. More robust follow-up is imperative. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：475 / 478

页数：4

共 14 条

[1]

Medial Mobile Bearing Unicompartmental Knee Arthroplasty Early Survivorship and Analysis of Failures in 1000 Consecutive Cases [J].