METHOD OF TREATING DEFORMATION OF FIRST TOE Russian patent published in 2011 - IPC A61B17/56 

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine, namely to traumatology and orthopedics. Access to lateral part of metatarsophalangeal joint in projection of first interdigital space and release of lateral part of joint are performed. First metatarsal bone is exposed from medial-dorsal access and main phalange of first toe. Reciprocal cross-cuts in proximal and distal parts of first metatarsal bone to the depth of Ѕ bone diameter are made. After that, parallel to sole surface of first metatarsal bone, longitudinal osteotomy is carried out with connection of internal edges of transversal saw cuts. Longitudinal cuneiform osteotomy of proximal fragment is performed on external surface of first metatarsal bone. Distal fragment of first metatarsal bone is displaced in lateral direction. Bone wedge is moved onto internal surface of metatarsal bone. Fixation of osteotomed bone fragments in necessary position is performed by means of screws at angle 45° to longitudinal axis of first metatarsal bone. One screw is introduced from dorsal surface in direction from proximal fragment into distal, the other screw is introduced from sole surface in direction from distal fragment into proximal.

EFFECT: method provides possibility of complete deformation correction in all available planes without changing foot biomechanics, ensures achievement of stronger fixation of osteotomed bone fragments, recovery of complete and painless volume of movements in metatarsophalangeal and interphalangeal joints.

1 ex, 7 dwg