Clinical effectiveness of distal metatarsophalangeal mini-invasive osteotomy on hallux valgus

Abstract

Background Minimally invasive treatment of hallux valgus is one of the better surgical methods,which still has the shortcomings of insufficient correction of deformities and poor correction of hallux rotation. Therefore, we have improved the surgical method to further improve the clinical efficacy. Methods 186 patients(328 feet) who were diagnosed as hallux valgus from January 2019 to January 2020 and underwent DMMO were included in this retrospective study. The preoperative and postoperative hallux valgus angle (HVA), intermetatarsal angle (IMA) and distal articular set angle (DASA) of the patients were collected and compared to evaluate the correction of deformity. To explore the safety and effectiveness of DMMO in improving the function of hallux valgus based on American Orthopaedic Foot & Ankle Society (AOFAS) and visual analogue score (VAS). Results The preoperative HVA, IMA and DASA of the subjects were (33.63°±8.74°,12.95°±2.42°,9.46°±1.88°), postoperative HVA, IMA and DASA were (11.18°±2.04°,7.61°±1.46°,3.25°±1.15°); The preoperative AOFAS and VAS were (49.65 ± 9.32,5.61 ± 2.12), and the postoperative were (90.21 ± 7.65,1.65 ± 0.48).The postoperative(12 months) of HVA, IMA, DASA, AOFAS and VAS were better than those before operation (P < 0.05). No postoperative complications were found in all cases. Conclusion Distal metatarsophalangeal mini-invasive osteotomy in the treatment of hallux valgus is safety, scientific and effective. It is worthy of clinical application promotion. Level of Evidence:Level III