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Case Reports
. 2021 Sep;11(3).
doi: 10.2106/JBJS.CC.21.00364.

Chronic Wear-Induced Bearing Dislocation in a Fixed-Bearing Unicompartmental Knee Arthroplasty: A Case Report

Manish Kiran  1 , James Kho, Elizabeth Hepburn, Julian Chakraverty, Hywel Davies
Affiliations
Case Reports

Chronic Wear-Induced Bearing Dislocation in a Fixed-Bearing Unicompartmental Knee Arthroplasty: A Case Report

Manish Kiran et al. JBJS Case Connect. 2021 Sep.

Abstract

Case: We present a case of late onset, bearing wear-induced failure of locking mechanism, resulting in bearing dislocation and rapidly progressive severe metallosis in a medial fixed-bearing (FB) unicompartmental knee arthroplasty (UKA).

Conclusion: Bearing dislocation is a rare complication of chronic wear in FB UKA, and early recognition is essential to prevent metallic component articulation-induced metallosis and catastrophic failure.

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References

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