Adaptation and Applicability of the Sane Scale in Brazil: Expanding the Use of the Validated Version

Abstract

Mariana Almeida Sales, Savio Camara Vieira de Andrade, Luisa Ferreira Alberti, Jose Celso Jardim Neto, Pedro Mariano Coelho Neto, Andrei Machado Viegas da Trindade, Helder Rocha da Silva Araújo and Fernanda Grazielle da Silva Azevedo Nora*

Objective: This study aimed to evaluate the functional recovery trajectory following total knee arthroplasty (TKA) and assess the effectiveness of the adapted M-SANE scale in monitoring post-surgical progress.

Methodology: A cross-sectional observational study was conducted with 120 patients who underwent unilateral primary TKA. Participants were categorized into three groups based on postoperative duration: 30 days, 6 months, and 12 months. Functional recovery was assessed using the M-SANE-DA scale, which evaluates six daily activities. Statistical analyses were performed using Student’s t-test for group comparisons.

Results: The study demonstrated significant functional improvement over time, with Group 3 (12 months post-TKA) exhibiting the highest scores across all activities. The most notable recovery was observed in stair climbing and prolonged standing, with statistically significant differences between groups (p < 0.001). However, tasks such as squatting and getting in and out of a car showed no significant variations, suggesting persistent biomechanical challenges.

Conclusion: The results highlight the importance of structured rehabilitation and long-term physiotherapy for optimizing functional outcomes following TKA. While significant improvements occur within the first year, certain activities require additional rehabilitation focus. The M-SANE-DA scale proved to be a reliable tool for monitoring functional recovery and guiding individualized rehabilitation interventions.

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