Cross-Cultural Adaptation and Validation of The Nepali Version of The Prosthetic Limb Users Survey of Mobility Short-Form (Plus-M™/Nepali-12Sf) In Lower Limb Prosthesis Users

A R Bajracharya; S Seng-Iad; K Sasaki; G Guerra

doi:10.33137/cpoj.v6i1.41310

Cross-Cultural Adaptation and Validation of The Nepali Version of The Prosthetic Limb Users Survey of Mobility Short-Form (Plus-M™/Nepali-12Sf) In Lower Limb Prosthesis Users

Can Prosthet Orthot J. 2023 Aug 23;6(1):41310. doi: 10.33137/cpoj.v6i1.41310. eCollection 2023.

Authors

A R Bajracharya¹, S Seng-Iad¹, K Sasaki¹, G Guerra²

Affiliations

¹ Sirindhorn School of Prosthetics and Orthotics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand.
² Department of Exercise and Sport Science, St. Mary's University, San Antonio, Texas, 78210, USA.

Abstract

Background: Objective mobility measurement of Nepali prosthesis users is lacking.

Objective: The objective of this study was to cross-culturally adapt, translate and evaluate construct validity of the Prosthetic Limb Users Survey of Mobility (PLUS-M™/Nepali-12 Short Form (SF)) instrument in lower limb prosthesis users residing in Nepal.

Methodology: Two forward translations, review and reconciliation, back translation, expert review, developer review to create the PLUS-M™/Nepali-12SF. Psychometric testing for internal consistency, test-retest reliability and construct validity against the Two-Minute Walk Test (2MWT) and Amputee Mobility Predictor with Prosthesis (AMPPRO) were performed on sixty-six lower limb prosthesis users.

Findings: The majority of populations were with transtibial amputation 45 (68%), with transfemoral amputation 15 (23%), with knee disarticulation 5 (7.5%) and with syme's amputation 1 (1.5%). The most common cause of amputation among the population was trauma and the least was tumor. Chronbach's alpha for the PLUS-M™/Nepali-12SF was 0.90, mean T-Score was 52.90, test-retest intraclass correlation coefficient (ICC) was 0.94 (95% confidence interval 0.90-0.96). Construct validity with the 2MWT was good (r = 0.62, p< 0.001) and moderately positive with the AMPPRO (r = 0.57, p< 0.001).

Conclusion: Our research evidenced that the PLUS-M™/Nepali-12SF had excellent reproducibility. The significance of this work is that it may allow for the measurement of mobility in austere locations of Nepal.

Keywords: 2MWT; Lower Limb Prosthesis; Mobility; Nepali; Outcome Measurement; PLUS-M; Prosthetics; Survey.