Journal
KNEE
Volume 8, Issue 3, Pages 187-194Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0968-0160(01)00097-7
Keywords
high tibial osteotomy; unicompartimental arthroplasty; unicompartmental osteoarthritis; total knee arthroplasty
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The clinical outcome of patients treated either by high tibial osteotomy or unicompartmental arthroplasty for medial unicompartmental osteoarthritis of the knee was compared in a prospective randomised study. In total, 32 patients received a high tibial osteotomy (HTO) and 28 patients a unicompartmental arthroplasty (UKA). More intra- and postoperative complications were observed after HTO. Patients were assessed at an average of 2.5 (1.6-5), 4.5 (3.6-7), and 7.5 years (6.6-10) after the operation. Using the Knee Society Score, 71% (15) of patients after osteotomy and 65% (13) after replacement had a knee score of excellent or good 7-10 years postoperatively. The Kaplan-Meier survival analysis 7-10 years postoperatively showed a survivorship of 77% for UKA and 60% for HTO. Although the unicompartmental prosthesis used in this series has not shown promising results, we conclude that with the advanced design of unicompartmental prosthesis today, UKA offers better long-term success. (C) 2001 Elsevier Science B.V. All rights reserved.
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