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- Title
Robotic-assisted total knee arthroplasty may lead to improvement in quality-of-life measures: a 2-year follow-up of a prospective randomized trial.
- Authors
Liow, Ming; Goh, Graham; Wong, Merng; Chin, Pak; Tay, Darren; Yeo, Seng-Jin; Liow, Ming Han Lincoln; Goh, Graham Seow-Hng; Wong, Merng Koon; Chin, Pak Lin; Tay, Darren Keng-Jin
- Abstract
<bold>Purpose: </bold>Despite reduction in radiological outliers in previous randomized trials comparing robotic-assisted versus conventional total knee arthroplasty (TKA), no differences in short-term functional outcomes were observed. The aim of this study was to determine whether there was improvement in functional outcomes and quality-of-life (QoL) measures between robotic-assisted and conventional TKA.<bold>Methods: </bold>All 60 knees (31 robotic-assisted; 29 conventional) from a previous randomized trial were available for analysis. Differences in range of motion, Knee Society (KSS) knee and function scores, Oxford Knee scores (OKS), SF-36 subscale and summative (physical PCS/mental component scores MCS) were analysed. In addition, patient satisfaction, fulfilment of expectations and the proportion attaining a minimum clinically important difference (MCID) in KSS, OKS and SF-36 were studied.<bold>Results: </bold>Both robotic-assisted and conventional TKA displayed significant improvements in majority of the functional outcome scores at 2 years. Despite having a higher rate of complications, the robotic-assisted group displayed a trend towards higher scores in SF-36 QoL measures, with significant differences in SF-36 vitality (p = 0.03), role emotional (p = 0.02) and a larger proportion of patients achieving SF-36 vitality MCID (48.4 vs 13.8 %, p = 0.009). No significant differences in KSS, OKS or satisfaction/expectation rates were noted.<bold>Conclusion: </bold>Subtle improvements in patient QoL measures were observed in robotic-assisted TKA when compared to conventional TKA. This finding suggests that QoL measures may be more sensitive and clinically important than surgeon-driven objective scores in detecting subtle functional improvements in robotic-assisted TKA patients.<bold>Level Of Evidence: </bold>II.
- Subjects
TOTAL knee replacement; SURGICAL robots; QUALITY of life; TREATMENT effectiveness; RANGE of motion of joints; COMPARATIVE studies; HEALTH surveys; KNEE diseases; LONGITUDINAL method; RESEARCH methodology; MEDICAL cooperation; OSTEOARTHRITIS; QUESTIONNAIRES; RESEARCH; EVALUATION research; RANDOMIZED controlled trials
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2017, Vol 25, Issue 9, p2942
- ISSN
0942-2056
- Publication type
journal article
- DOI
10.1007/s00167-016-4076-3