AN EXPERIMENTAL PATHOLOGICAL STUDY OF CHRONIC COLLISION INJURY OF THE DISTAL RADIAL EPIPHYSIS
- VernacularTitle:桡骨远端骨骺慢性撞击伤实验病理研究
- Author:
Binquan XU
;
Tiebin YAN
;
Bin WANG
- Publication Type:Journal Article
- Keywords:
epiphysis, growth plate, injury, radius.
- From:Chinese Journal of Sports Medicine
1983;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
A special collision unit was used in the experiment by which the distal ends of the fore legs of young rabbits were struck repeatedly on the right aspect. In another group of young rabbits, deep branches of the artery of the right fore legs were ligated and severed. X-Ray examination was made before the two groups of rabbits were killed.Roentgenogram demonstrated: Growth plate of the right fore leg showed wave-like growth, thickened or thinned in the collision group; no difference showed between 2 fore legs in vessel group.Histological demonstrations1. Collision group: 1) Chondrocytcs of articular surface decreased, degenerated and disappeared. 2) Trabecula of the cpiphysis and metaphysis atrophied; osteoblasts and ostcocytcs decreased and degenerated. 3) Growth plate thickened, some arranged wave-like; chondrocytes increased and degenerated. 4) Fibrous tissues and cartilage increased in the mctaphysis. 5) Perichondral ring thickened.2. Vessel group: Similar to the collision group except fibrous and cartilage proliferation in the epiphysis and no arrangement disorder in the growth plate.
