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- Title
Comparison of outcomes after UKA in patients with and without chondrocalcinosis: a matched cohort study.
- Authors
Kumar, V.; Pandit, H.; Liddle, A.; Borror, W.; Jenkins, C.; Mellon, S.; Hamilton, T.; Athanasou, N.; Dodd, C.; Murray, D.; Pandit, H G; Liddle, A D; Mellon, S J; Hamilton, T W; Dodd, C A F; Murray, D W
- Abstract
<bold>Purpose: </bold>Chondrocalcinosis can be associated with an inflammatory arthritis and aggressive joint destruction. There is uncertainty as to whether chondrocalcinosis represents a contraindication to unicompartmental knee arthroplasty (UKA). This study reports the outcome of a consecutive series of patients with chondrocalcinosis and medial compartment osteoarthritis treated with UKA matched to controls.<bold>Methods: </bold>Between 1998 and 2008, 88 patients with radiological chondrocalcinosis (R-CCK) and 67 patients with histological chondrocalcinosis (H-CCK) were treated for end-stage medial compartment arthritis with Oxford UKA. One-to-two matching was performed to controls, treated with UKA, but without evidence of chondrocalcinosis. Functional outcome and implant survival were assessed in each group.<bold>Results: </bold>The mean follow-up was 10 years. The mean Oxford Knee Score (OKS) at final follow-up was 43, 41 and 41 in H-CCK, R-CCK and control groups (change from baseline OKS was 21, 18 and 15, respectively). The change was significantly higher in H-CCK than in control but was not significantly different in R-CCK. Ten-year survival was 96 % in R-CCK, 86 % in H-CCK and 98 % in controls. Although the survival in H-CCK was significantly worse than in control, only one failure was due to disease progression.<bold>Conclusion: </bold>The presence of R-CCK does not influence functional outcome or survival following UKA. Pre-operative radiological evidence of CCK should not be considered to be a contraindication to UKA. H-CCK is associated with significantly improved clinical outcomes but also a higher revision rate compared with controls.<bold>Level Of Evidence: </bold>Case control study, Level III.
- Subjects
CHONDROCALCINOSIS; OSTEOARTHRITIS treatment; ARTHROPLASTY; KNEE surgery; PROGNOSIS; FUNCTIONAL assessment; THERAPEUTICS; ARTIFICIAL joints; COMPARATIVE studies; KNEE diseases; LONGITUDINAL method; RESEARCH methodology; MEDICAL cooperation; OSTEOARTHRITIS; QUESTIONNAIRES; RADIOGRAPHY; RESEARCH; TOTAL knee replacement; EVALUATION research; TREATMENT effectiveness; PROPORTIONAL hazards models; CASE-control method; DISEASE progression; KAPLAN-Meier estimator; DISEASE complications
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2017, Vol 25, Issue 1, p319
- ISSN
0942-2056
- Publication type
journal article
- DOI
10.1007/s00167-015-3578-8