Abstract
This article describes a technique to manage dislocations of mobile bearing lateral unicompartmental knee replacements. When dislocations occur, the bearing usually subluxes medially over the medial wall of the tibial component into the intercondylar notch. By positioning small fragment screws with their heads above the vertical wall, thereby increasing the height of the wall, subsequent dislocations can be prevented. Seven cases treated in this manner are reported, of which one of the seven has redislocated. In the remaining six, their clinical outcomes are comparable to the outcomes of those without dislocations. Level of evidence Retrospective case series, Level IV.
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Acknowledgments
The authors wish to thank B. E. Marks and J. Copp for their assistance with this paper. The study has been supported by the NIHR Biomedical Research Unit into Musculoskeletal disease, Nuffield Orthopaedic Centre and the University of Oxford.
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The authors have received benefits for personal and professional use from commercial parties related to the subject of the paper.
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Weston-Simons, J.S., Pandit, H., Gill, H.S. et al. The management of mobile bearing dislocation in the Oxford lateral unicompartmental knee replacement. Knee Surg Sports Traumatol Arthrosc 19, 2023–2026 (2011). https://doi.org/10.1007/s00167-011-1446-8
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DOI: https://doi.org/10.1007/s00167-011-1446-8