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. 2022 Aug 17;11(8):575–584. doi: 10.1302/2046-3758.118.BJR-2021-0533.R1

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© 2022 Author(s) et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (CC BY-NC-ND 4.0) licence, which permits the copying and redistribution of the work only, and provided the original author and source are credited. See https://creativecommons.org/licenses/by-nc-nd/4.0/

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Fig. 3 — Bar graph showing the percentage difference in risk of fracture as the positions of the isolated medial unicondylar knee arthroplasty (UKA-M) and isolated lateral unicondylar knee arthroplasty (UKA-L) components were varied from the planned bi-unicondylar knee arthroplasty based on the typical accuracy achieved with manual instruments. A 2 standard deviation (SD) variation of the UKA-M implant only (blue), 2 SD variation in the UKA-L only (green), and 1 SD variation of both implants (yellow) are shown. In all cases the variation acts to narrow the bone island and/or make it taller.