METHOD FOR FREE OSTEOPLASTY OF FALSE JOINTS OF LONG BONES Russian patent published in 2014 - IPC A61B17/56 

FIELD: medicine.

SUBSTANCE: ends of both bone fragments are conically expanded throughout 2-3 cm by means of a chamber bit with cutting sides of a drill with an electric drill moving circularly. A procedure of cortical spongy autografting uses a double circular saw of the diameter of 5 cm and the disk distance of 1-1.8 cm, and a single circular saw of the diameter of 3.5 cm. A procedure of autografting involves creating two parallel lines of osteotomy by means of the double circular saw in the donor's segment; then the single circular saw is used to extend the ends of both lines of osteotomy on either side by 2.5-3.5 cm and to connect them to form a rhomb-shaped cortical spongy autograft with pointed ends. The pointed-end autograft is tightly penetrated into the conically expanded intramedullary canals of both bone fragments. The external fixation operation is completed by inserting the screws into a plate from the periphery to the centre so that the last screws shall be inserted through the middle engaging openings, except the bone fragments and rhomb-shaped autograft.

EFFECT: method increases the more stable fixation of the bone fragments.

6 dwg, 1 ex