Observational studyJournal of robotic surgery2026
Does robot assistance improve the forgotten knee after total knee arthroplasty? A longitudinal prospective observational study.
Observational study in Journal of robotic surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
Funding
Abstract
This study aimed to determine whether robotic-assisted total knee arthroplasty (RATKA) provides superior patient-reported outcomes compared to conventional manual total knee arthroplasty (MTKA), with particular emphasis on the forgotten joint score (FJS) and postoperative satisfaction levels. In this prospective longitudinal observational study, we enrolled 157 consecutive patients who underwent primary TKA between May and July 2023. The participants were assigned to either the RATKA or MTKA groups based on the surgical technique utilized. Following exclusions for periprosthetic joint infection (n = 2) and inadequate follow-up compliance (defined as > 5 missed visits, n = 26), the final analytic cohort comprised 129 participants. The RATKA group (n = 55) demonstrated significantly higher preoperative expectations (P = 0.011) and longer operative duration (P < 0.001) compared to the MTKA group (n = 74), while all other baseline characteristics were comparable between the groups. The mean FJS increased from preoperative values of 21.07 and 20.06 to 73.46 and 72.08 in the RATKA and MTKA groups, respectively (P < 0.001). During follow-up from 2 to 12 months, the RATKA group consistently showed higher FJS than the MTKA group at all time points; however, the differences neither reached the minimal clinically important difference (MCID) nor attained statistical significance (P = 0.458). At 12 months, satisfaction was numerically higher in the RATKA group but was not statistically significant (94.5% versus 91.9%, P > 0.05). Our findings revealed no statistically significant or clinically meaningful difference in FJS improvement between both groups; however, the RATKA group showed a numerically higher point estimate than the MTKA group.
trial registrationChiCTR2500107625. Registration date 15/08/2025. Retrospectively registered.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.