Lisfranc midfoot dislocations: correlations between surgical treatment and functional outcomes.

UNLABELLED Lisfranc dislocations and fracture dislocations are the most common severe injuries of the foot. AIM To assess the functional outcome of patients with Lisfranc dislocations of the midfoot by applying the latest methods of diagnosis and treatment. MATERIAL AND METHODS The study reviewed 31 patients with dislocations and fracture- dislocations of the Lisfranc joint over a 10 years period. The average follow-up period was 44 months (range 12-108). Injuries were classified according to Myerson scale. RESULTS The outcomes were evaluated using the Baltimore Painful Foot score (PFS) and American Orthopaedic Foot and Ankle Society (AOFAS) mid-foot scoring scale. 10 patients had an excellent outcome on the PFS scale, 8 were classified as good, 13 fair and poor. The average AOFAS score for the midfoot. used for results interpretation was 72 (range 52-92). CONCLUSIONS Of all methods of surgical treatment used, the highest scores were obtained by internal fixation with screws. Eight patients (25.8 %) developed posttraumatic arthritis of the tarsometatarsal joints.