Résultats décevants entre les performances fonctionnelles et la satisfaction des patients ayant une prothèse unicompartimentale du genou: une étude transversale

• DOI: 10.1016/j.rcot.2021.02.018
• Publication Date: 2021-04-26T17:24:43Z
• Authors: Kwaku Baryeh; Cedric Maillot; Advaith Gummaraju; Charles Rivière
• Keywords: 03 medical and health sciences; 0302 clinical medicine; 3. Good health

Abstract Background Following a Unicompartmental knee arthroplasty (UKA) satisfaction is often conflated with functional outcome. Recent studies have shown that satisfaction is not linked to functional outcome. The research questions were: (1) what is the relationship between satisfaction and functional performance and quality of life (absolute and gain values) after UKA? And (2) what is the level of satisfaction, function, and quality of life after UKA? Hypothesis There is a poor relationship between functional performance and patient satisfaction following UKA. Methods This was a retrospective study using a locally held arthroplasty register to identify patients who had undergone UKA between 2004 and 2017. Patient reported outcome measures (PROMs) were collected prospectively and included EQ-5D, Oxford Knee Score (OKS) and satisfaction score (based on a visual analogue score with 0 being worst and 100 being best). Patients with a complete set of pre-operative and 2-year post-operative outcome scores were included. Patients who subsequently underwent revision surgery were excluded. 1638 patients were identified, of which 896 were eligible for inclusion. The average age was 66.7 years old, with 46.3% of patients being female. Results There was a moderate to strong correlation between the absolute or relative values for OKS and the patient satisfaction following UKA (r = 0.705 and r = 0.522, respectively). The average pre-operative scores improved from a median of 23 (IQR 18–28) to 43 (IQR 35–46) (p Discussion/Conclusion UKA is a successful procedure generating high levels of patient function and satisfaction. Because patients’ OKS and EQ-5D scores may be influenced by comorbidities, those scores are of disappointing predictive value in estimating patient satisfaction, and therefore should not be used as a surrogate to determine the success of the UKA procedure. Level of Evidence III, Restrospective cohort study.