Chronic lateral instability of the ankle Roentgen stereophotogrammetry of talar position

Abstract
Using roentgen stereophotogrammetric analysis (RSA), we investigated the talar mobility in 54 ankles during the anterior drawer and adduction tests. Talar tilt was increased in ankles with unilateral symptoms of chronic lateral instability. No other differences in talar tilt and anterior drawer sign was noted comparing ankles with an without symptoms. We conclude that mechanical tests cannot always verify the diagnosis "chronic lateral instability of the ankle".

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