METHOD FOR SIMULATION OF FALSE JOINT IN SHIN FRACTURES AND DEVICE FOR IMPLEMENTING IT Russian patent published in 2014 - IPC G09B23/28 A61B17/56 

FIELD: medicine.

SUBSTANCE: external fixation apparatus (EFA) is applied on a rabbit's shin, then an osteoperforation and an osteoclasis are performed between the 2^nd and 4^th levels. Shin bone fragments are separated at 1 cm and fixed with EFA pins in this position for 14 days; that is followed by a one-stage compression between supports of the 4^th and 5^th levels until resist completely. Ends of the separated fragments are combined and fixed; the EFA is stabilised. A device for simulating the false joint in an experimental animal's shin fracture comprises proximal and distal bases in the form of a sector equal to 3/4 of a ring. Proximal base consists of 2^nd and 4^th levels, distal base consists of 5^th and 7^th levels, sectors of levels 2, 4 and 5 are placed one below the other while 7^th level sector is flipped through 180° in a horizontal plane in relation to the sectors of levels 2, 4 and 5. Two threaded fixing rods connect the 2^nd and 4^th, 4^th and 5^th, 5^th and 7^th levels, and one fixing rod connects the 2^nd level with 4^th and 5^th levels. Each base comprises two pairs of bolted pin fixators. Model reproducibility makes 100%.

EFFECT: simulating the false joint having the characteristics maximum close to the real clinical process.

2 cl, 8 dwg, 1 ex