Compare the screw fixation technique of Akin's osteotomy, compared to the technique without fixation, on the postoperative mobility of the metatarsophalangeal joint of the hallux at one year postoperatively in patients ( patients operated on for an isolated hallux valgus, that is to say without any associated lateral movement, by percutaneous technique (MICA or PERC).
We hypothesize that the Akin screw fixation osteotomy technique provides better postoperative mobility of the metatarsophalangeal hallux joint compared to the non-fixation technique.