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Navigation-assisted versus conventional total knee replacement: no difference in patient-reported outcome measures (PROMs) at 1 and 2 years

Lookup NU author(s): Karthikeyan Muthumayandi

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Abstract

Navigation technique for total knee replacement has been shown to improve accuracy of prosthesis alignment in several studies. The purpose was to compare the patient-reported outcome measures in primary total knee replacement (TKR) using navigation versus conventional surgical technique at 1- and 2-year follow-up.A retrospective review of prospectively collected patient-reported outcome data for 351 consecutively performed primary TKR was included in the study. The study group (N = 113) included patients who had Triathlon TKR using articular surface mounted (ASM Stryker(A (R))) navigation technique and control group (N = 238) included patients who had Triathlon TKR using conventional jig. In addition to the WOMAC (Western Ontario and McMaster University Osteoarthritis Index) and SF-36 (Medical Outcomes Trust Short Form-36), a short self-report questionnaire evaluating the level of satisfaction, quality of life and whether patients would undergo knee replacement again.WOMAC: no significant difference between the groups was noted in mean WOMAC pain, function and stiffness scores at 1- and 2-year follow-up. SF-36: no significant difference between the groups was seen except in the physical function component of score at 1 year (p = 0.019). Navigation group mean 56.78 (CI 51.06-62.5) versus conventional group mean 48.34 (44.68-52.01) but this difference was not observed at 2-year follow-up.The overall patient-reported outcome scores improved after total knee replacement but appear to be comparable in both groups at 1- and 2-year follow-up.

Publication metadata

Author(s): Singisetti K, Muthumayandi K, Abual-Rub Z, Weir D

Publication type: Article

Publication status: Published

Journal: Archives of Orthopaedic and Trauma Surgery

Year: 2015

Volume: 135

Issue: 11

Pages: 1595-1601

Print publication date: 01/11/2015

Online publication date: 25/08/2015

Acceptance date: 01/01/1900

ISSN (print): 0936-8051

ISSN (electronic): 1434-3916

Publisher: Springer

URL: http://dx.doi.org/10.1007/s00402-015-2314-7

DOI: 10.1007/s00402-015-2314-7

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