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Background The aim of this study was to analyze the radiological results of a roof (“Chevron”) osteotomy with MIS (Minimally invasive surgery) technique of the first metatarsal in a uniform population of patients with moderate hallux valgus. Methods Surgical treatment of hallux valgus was performed between October 2013 and November 2014, by a roof ("Chevron") osteotomy with MIS technique of the first metatarsal in 24 feet of 21 patients. All patients had a diagnosis of moderate hallux valgus. Results The mean preoperative intermetatarsal angle between M1-M2 was 12.46° (range: 11-15°, SD 1.03). Postoperatively, the mean intermetatarsal angle was 8.13° (range: 5-10°; SD 1.16), with an angular correction of 4.33° in average. The mean preoperative hallux valgus angle was 33.96° (range: 20-40°; SD 4.93) and postoperatively, the metatarsal-phalangeal angle was 8.16° in average, (range: 3-15°, SD 2.86), thus improving in 25.86° in average. Conclusions Radiological results obtained from the minimally invasive technique (Chevron osteotomy), confirm a safe and effective procedure for the treatment of moderate hallux valgus, with mid-term satisfactory angular correction. This method faithfully mimics the open Chevron surgical  technique retaining all its known virtues. To our knowledge, no equivalent study was found in the literature.

revista de la asociación argentina de ortopedia y traumatología

Osteotomía en tejadillo (“Chevron”) con técnica MIS (“Minimally invasive surgery”) del primer metatarsiano. [Chevron osteotomy with minimally invasive surgery (MIS) of the first metatarsal.]