NDLI: Reintervention after mobile-bearing Oxford unicompartmental knee arthroplasty.

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Year: 2010 Volume: 468 Issue: 1

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Year: 2008 Volume: 466

Reintervention after mobile-bearing Oxford unicompartmental knee arthroplasty.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Clark, Marcia Campbell, David G. Kiss, Greg Dobson, Peter J. Lewis, Peter L.
Description	Country affiliation: Australia Author Affiliation: Clark M ( Wakefield Orthopaedic Clinic, St Adelaide, 270 Wakefield Street, Adelaide, 5000, Australia.)
Abstract	BACKGROUND: Medial compartment osteoarthritis is a common disorder that often is treated by unicompartmental knee arthroplasty (UKA). Although the Oxford 3 prosthesis is commonly used based on revision rate and cumulative survival, our experience suggests that although there may be adequate implant survival rates, we observed a worrisome and undisclosed reintervention rate of nonrevision procedures. PURPOSE: We describe the frequency and cause of repeat intervention subsequent to implanting this device. METHODS: Between 1998 and 2005, 398 patients underwent UKA using the Oxford 3 prosthesis. The minimum followup was 12 months (mean, 43 months; range, 12-102 months). RESULTS: Forty of the 398 (10%) patients had 55 (13.8%) repeat anesthetics (reintervention). There were 38 nonrevision reinterventions. Revision was performed in 15 patients (3.8%), but two patients had a second revision (17 revisions or 4.3%). We revised the UKA to a second UKA in seven of the 15 cases but two subsequently were rerevised to a TKA; eight were revised directly to a TKA. CONCLUSIONS: Although our data confirm the reported revision rates for this prosthesis, we observed a substantial reintervention rate. Most of the reinterventions are minor and are diagnosed frequently and treated arthroscopically. If revision is required, a second UKA may be considered and performed successfully in patients with isolated loosening of one component. LEVEL OF EVIDENCE: Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.
File Format	HTM / HTML
ISSN	0009921X
e-ISSN	15281132
DOI	10.1007/s11999-009-1089-y
Journal	Clinical Orthopaedics and Related Researchtextregistered
Issue Number	2
Volume Number	468
Language	English
Publisher	Springer
Publisher Date	2010-02-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Discipline Orthopaedics Arthroplasty, Replacement, Knee Instrumentation Knee Prosthesis Knee Surgery Osteoarthritis, Knee Adverse Effects Physiopathology Prosthesis Design Prosthesis Failure Reoperation Retrospective Studies Time Factors
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Surgery Sports Science

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