Abstract

YANEZ ARAUZ, Juan Manuel et al. Estudio prospectivo de cirugía de hallux valgus con técnicas de Bösch y MICA. Análisis radiográfico comparativo a mediano plazo. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2021, vol.86, n.1, pp.5-16. ISSN 1852-7434.  http://dx.doi.org/https://doi.org/10.15417/issn.1852-7434.2021.86.1.1084.

Introduction: Multiple surgical treatments for the hallux valgus have been described. The purpose of this study is to compare the radiological results for the angular correction and its stability on the medium-term between two percutaneous techniques (MICA versus BOSCH technique). Materials and Methods: Prospective comparative analysis of surgically treated patients with hallux valgus by two percutaneous techniques (BOSCH group: 42 feet; MICA group: 36 feet) in homogenous groups. Intermetatarsal, metatarsophalangeal and distal metatarsal articular angle corrections were compared, as well as the correction power of both osteotomies and its stability in the middle term. Postoperative complications were recorded. Minimum follow-up: 6 months. Results: Average angle correction of MTP, IM y DMAA 6 months after surgery in Bosch group: 20,22°; 7,74°; 8,26°; MICA: 15,8°; 1,6° and 1,98° respectively. BOSCH group had a higher IM correction power. There were no significant statistical differences between both groups in the loss of correction by 6 weeks to 6 months; except for the MTP angle in the MICA group. MICA presented a better correction of the DMAA in time. Postoperatively, MICA group had 4 complications, while BOSCH 8. Conclusions: We obtained good results with both techniques in the treatment of moderate hallux valgus. However, patients undergoing the Bosch technique had greater correction on the intermetatarsal angle in the medium-term follow-up. Although the MTP angle correction decreased between 6 weeks and 6 months in MICA technique, the values ​remained within normal 20° of valgus MTP.

Keywords : Minimally invasive surgery; Bosch osteotomy; MICA technique; percutaneous surgery.

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