Joint awareness after unicompartmental knee arthroplasty and total knee arthroplasty: a systematic review and meta-analy

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Joint awareness after unicompartmental knee arthroplasty and total knee arthroplasty: a systematic review and meta‑analysis of cohort studies Sujit Kumar Tripathy1   · Paulson Varghese1 · Anand Srinivasan2 · Tarun Goyal3 · Prabhudev Prasad Purudappa4 · Ramesh Kumar Sen5 · Mallikarjun Honnenahalli Chandrappa6 Received: 3 August 2020 / Accepted: 6 October 2020 © European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2020

Abstract Purpose  The purpose of this systematic review and meta-analysis is to evaluate the joint awareness after unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA). It was hypothesized that patients with UKA could better forget about their artificial joint in comparison to TKA. Methods  A search of major literature databases and bibliographic details revealed 105 studies evaluating forgotten joint score in UKA and TKA. Seven studies found eligible for this review were assessed for risk of bias and quality of evidence using the Newcastle–Ottawa Scale. The forgotten joint score (FJS-12) was assessed at 6 months, 1 year, and 2 years. Results  The mean FJS-12 at 2 years was 82.35 in the UKA group and 74.05 in the TKA group. Forest plot analysis of five studies (n = 930 patients) revealed a mean difference of 7.65 (95% CI: 3.72, 11.57, p = 0.0001; I2 = 89% with p