Affiliation:
1. Sydney Orthopaedic Research Institute, Chatswood, New
South Wales, Australia.
Abstract
Objectives There remains a lack of data on the reliability of methods to estimate tibial coverage achieved during total knee replacement. In order to address this gap, the intra- and interobserver reliability of a three-dimensional (3D) digital templating method was assessed with one symmetric and one asymmetric prosthesis design. Methods A total of 120 template procedures were performed according to specific rotational and over-hang criteria by three observers at time zero and again two weeks later. Total and sub-region coverage were calculated and the reliability of the templating and measurement method was evaluated. Results Excellent intra- and interobserver reliability was observed for total coverage, when minimal component overhang (intraclass correlation coefficient (ICC) = 0.87) or no component overhang (ICC = 0.92) was permitted, regardless of rotational restrictions. Conclusions Measurement of tibial coverage can be reliable using the templating method described even if the rotational axis selected still has a minor influence.
Publisher
British Editorial Society of Bone & Joint Surgery
Subject
Orthopedics and Sports Medicine,Surgery
Cited by
4 articles.
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