November 2017

Combination of four variables predicts 90% of recurrent lateral ankle sprains

In the moment: Sports medicine

By Jordana Bieze Foster

A combination of four variables predicts 90% of cases of recurrent lateral ankle sprain within one year of an initial sprain, according to research from the University of Sydney in Australia.

Investigators assessed 30 individuals who had sustained an initial ankle sprain and 70 healthy controls, specifically with regard to demographic and clinical measures thought to be potential predictors of future ankle sprain based on prior studies. The researchers followed the participants for one year, during which 10 recurrent sprains occurred.

The only independent predictors of recurrent ankle sprain were history of an index sprain (odds ratio [OR] = 8.23) and younger age (OR = 8.41). However, a combination of 10 variables explained 25% to 56% of the variance in ankle sprain recurrence. And a regression model that included a combination of four variables (greater height or weight, self-reported instability, greater inversion/eversion peak power, and impaired balance) predicted ankle sprain recurrence in 90% of the participants.

The findings were epublished in early November by Physiotherapy.

Source:

Pourkazemi F, Hiller CE, Raymond J, et al. Predictors of recurrent sprains after an index lateral ankle sprain: A longitudinal study. Physiotherapy 2017 Nov 1. [Epub ahead of print]  

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