FIELD: medicine.SUBSTANCE: invention relates to medicine, particularly to traumatology and orthopedics. A release of the deformed joint capsule is performed in an amount required to eliminate a dislocation of the primary phalanx of the finger. That is followed by primary osteotomy of the instep bone metadiaphysis starting from the posterior border between the distal epiphysis and metaphysis instep bone at angle of 10° to a horizontal axis of the metatarsal bone in the direction from the foot of foot to its sole, from the distal portion of the metatarsal bone to the proximal bone. That is followed by a secondary osteotomy parallel to the primary one, retreating from it distally by 0.3–0.7 cm, resecting the metatarsal bone fragment to form an elevation groove. That is followed by displacement in the proximal direction and elevation of the distal osteotomised fragment of the metatarsal bone until alignment of the metatarsal bone and the proximal phalanx of the finger is restored. A posterior portion of the cortical layer of the proximal osteotomized fragment is resected on a shortening length of the metatarsal bone.EFFECT: method enables optimal position of head of metatarsal bone due to its elevation, freely manipulate degree of shortening of metatarsal bone without loss of stable position of fragments and use of retainers, reducing number of recurrent deformities of small fingers and metatarsalgia, providing early mobilization of patient without additional external support in postoperative period, is simple, universal, preserves static dynamic function of anterior foot.1 cl, 9 dwg, 1 exИзобретение относится к медицине, а именно к травматологии и ортопедии. Выполняют релиз капсулы деформированного сустава в объеме, необходимом для устранения вывиха основной фаланги пальца. После чего производят первичную остеотомию метадиафиза плюсневой кости, начиная от тыльной границы между дистальным эпифизом и метафизом плюсневой кости, под углом 10° к горизонтальной оси плюсневой
