The aim of this study was to evaluate the preliminary results of miniinvasive Mitchell-Kramer distal osteotomy of the first metatarsal.
Methods: We evaluated 5 patients, all women, who underwent miniinvasive distal metatarsal osteotomy of the first metatarsal with preservation of lateral cortex of distal fragment. We made reposition and percutaneous stabilization using of 2-mm K-wire. We did not use cast immobilization and allowed to go to offload of the forefoot. Radiological (AP and lateral foot standing X-ray picture) VAS scale and The American Orthopaedic Foot and Ankle Society (AOFAS) hallux-metatarsophalangeal-interphalangeal scale was used for the clinical assessment.
Results: Preoperatively mean hallux valgus angle (HVA) was 32.4 degrees, intermetatarsal angle (IM) 14,3 degree, VAS 8.9/10 and AOFAS 40.2/100. Postoperatively HVA was 14.7, IM 9.1, VAS 3.6/10 and AOFAS 91.2/100. We did not notice complication and all patients were satisfied.
Conclusions: The miniinvasive Mitchell-Kramer method is good surgical treatment of mild-to-moderate hallux valgus deformity. Cast immobilization is unnecessary, there are good clinical and cosmetic results. Using the minioscillating saw reduces surgical exposure.