[Functional disorders of the foot after tenodeses: is the method still currently acceptable?]

On the basis of biomechanical and clinical studies, this article discusses the relevance of tenodesis in the operative treatment of chronic lateral ankle instability. Considering the experimental results, it is evident that any tenodesis leads to restriction of inversion according to the course and the tightness of the graft. It has been shown that the lateral peroneal reconstruction has a negative influence on the kinematic coupling of the ankle joint complex. The data of the clinical studies reflect the biomechanical results. Despite a high rate of satisfaction, up to 50% of the patients reveal a restriction of inversion. Some authors, particularly those who report on a 10-year follow-up, showed that the degree of arthrosis increased and that deterioration of the clinical result occurred over the time. The measurement of plantar pressure distribution during gait proved the alteration of foot biomechanics. The biomechanical and clinical data available on tenodesis and the good results of the anatomical repair suggest that tenodesis is presently only the method of last choice.