Fisiopatología de los Cuerpos Libres Intraarticulares Estudio Experimental.

It i s not well known the origin of t h e cartilaginous outer layer of theintrarticular loose bodies. An experimental study has been carried out on rabbitsloosening out osteochondral fragments into the articular cavity of the knee joint andstudying their histological changes between the first week and the first year. The osteochondralfragments were found adhered to the synovial membrane in all cases.A proggressive remodeling tood place within the osseous and cartilaginous components,the whole fragment became covered by a fibrocartilaginous covering, thecentral bone was reabsorbed and new bone was formed at the peripheral portionunder fibrocartilage. All tissue changes were dependent on synovial membraneactivity. Growth of articular cartilage could not be demonstrated.

It i s not well known the origin of t h e cartilaginous outer layer of theintrarticular loose bodies. An experimental study has been carried out on rabbitsloosening out osteochondral fragments into the articular cavity of the knee joint andstudying their histological changes between the first week and the first year. The osteochondralfragments were found adhered to the synovial membrane in all cases.A proggressive remodeling tood place within the osseous and cartilaginous components,the whole fragment became covered by a fibrocartilaginous covering, thecentral bone was reabsorbed and new bone was formed at the peripheral portionunder fibrocartilage. All tissue changes were dependent on synovial membraneactivity. Growth of articular cartilage could not be demonstrated.