[Classification of finger deformities due to muscle-tendon imbalance].

We have developed a 4 stages classification comprising: purely dynamic imbalance (Stage 1); tenodesis effect (Stage 2); articular rigidity without cartilage lesion (Stage 3); articular rigidity with bone and cartilage destruction (Stage 4). This classification is easy to remember and general enough to be used for most deformities due to musculo-tendinous imbalance, whatever their type or etiology. We believe that this assessment will help to clarify the therapeutic indications and allow better interpretation of the results.