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Reintervention after mobile-bearing Oxford unicompartmental knee arthroplasty.
- Source :
- Clinical Orthopaedics & Related Research®; Feb2010, Vol. 468 Issue 2, p576-580, 5p
- Publication Year :
- 2010
-
Abstract
- <bold>Background: </bold>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.<bold>Purpose: </bold>We describe the frequency and cause of repeat intervention subsequent to implanting this device.<bold>Methods: </bold>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).<bold>Results: </bold>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.<bold>Conclusions: </bold>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.<bold>Level Of Evidence: </bold>Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0009921X
- Volume :
- 468
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Clinical Orthopaedics & Related Research®
- Publication Type :
- Academic Journal
- Accession number :
- 105294629
- Full Text :
- https://doi.org/10.1007/s11999-009-1089-y