METHOD FOR SIMULATING HIP DISLOCATION Russian patent published in 2011 - IPC G09B23/28 

FIELD: medicine.

SUBSTANCE: originally, epiphysial hip dysplasia is formed in 10-day-old golden hamsters with projection of the joint exposed to local infra-red pulse laser light daily for 20 days. Then, on the following day, simple hip dislocation of an experimental extremity of a hamster is performed by gradual extension of a capsular-ligamentous apparatus of the hip joint. Ventral and dorsal zones of a joint space are subject to mechanical vibrations by a border of a thin metal plate fixed in a stably fixed vibrator. The following parameters are used: joint capsule pressure 1 kg, vibration frequency 100 Hz, amplitude 0.3 mm for 15 minutes to the moment of femoral head exit from an acetabular cavity. Then, the femoral head is displaced manually behind an external surface of the cavity. In 2 days, the hamster is laid on its back, and the experimental hip is gradually taken aside from a vertical plane to a position of an apex of the head of the hip joint in a horizontal plane. The procedure is performed daily for at least 3 times for 7 days.

EFFECT: use of the given invention allows performing sparing simulation of the simple hip dislocation similar to a mechanism of hip dislocation pathogenesis in children that testifies to possibility of the use of this model for studying macro- and microscopic changes in the ends of the bones formed during growth.

5 dwg, 4 ex