“…In literature, there is a vast amount of studies addressing and advocating various surgical techniques, such as soft parts proce- (4,5,6,7,8,9,10,11) . The first metatarsal base osteotomy is prescribed in any age group, and its major indication is for hallux valgus with incongruent metatarsophalangeal joint (subdislocated), with HVA above 30º, and IMA above 16º, being contra-indicated in patients with congruent joint, significant arthrosis, and in any kind of spasticity (2) . The objective of this study is to present the results achieved by means of the use of base osteotomy for the treatment of moderate to severe hallux valgus, evaluating the improvements on X-ray parameters (HVA, IMA, DS, MDJA), the subjective analysis of the degree of satisfaction and techniques' ability to correct it, based on pre-and postoperative data.…”