Adaptación transcultural al Español y Validación de la Escala de Lysholm para evaluar la funcionalidad de la rodilla

Background

The Lysholm scale was developed in 1982 and modified in 1985 in order to assess the functionality of patients with knee ligament injuries; since then it has been widely used to subjectively evaluate patients in relation to their functional capacity. The purpose of the study was to carry out its translation and cross-cultural adaptation to Colombian Spanish and to develop psychometric validation through the evaluation of internal consistency and test-retest reliability.

Methods

After identifying the original scale of interest, translation (English-Spanish), cultural adaptation and re-translation (Spanish-English) were carried out by native linguist experts, who assessed the similarity of the content of both products (original and retranslated). Likewise, this latest version was evaluated by 40 patients with knee disease (meniscal injury, anterior cruciate ligament rupture, chondromalacia and gonarthrosis), who confirmed that they understood the text. Subsequently, the internal consistency was evaluated using Cronbach's alpha test for all items, and the intraclass correlation coefficient – ??total score of the sub-construct through a random sample (n = 93), which validated the factorial structure of the scale.

Results

Cronbach's alpha was 0.737 and the interclass correlation coefficient was 0.844, associated with a high inter-observer agreement (Gamma = 0.752). The Bland-Altman plot did not show systematic differences between the measurements

Discussion

This Spanish (Colombian) version of the Lysholm scale is a valid tool to measure functionality in patients with meniscal lesions of the anterior cruciate ligament, patellofemoral chondromalacia and gonarthrosis in Spanish-speaking countries (preferably in Colombia).

Evidence Level

I