[Attempts at management of experimental spinal cord hemisection by complete immobilization of the spine in dogs].
This animal experimentation shows the results of a method aiming at proving the possibilities of medullar reconstruction, if the medullar surfaces are in firm contact ant if medullar tension is neutralized. After hemitransection of the spinal cord, a total spinal immobilization in extension is obtained by using an original orthopaedic prosthesis. Thus, we operated on five dogs, one of which, the reference dog, underwent hemitransection of the spinal cord but no spine immobilization. From a clinical point of view, this dog developed a spastic crural monoplegia, whereas recuperation of motricity by the other dogs was surprising. Histological studies allowed us to observe a certain re-establishment of the spinal cord continuity, suggesting the beginning of an organization of a regeneration mechanism. These statements show the harmful influence of intra-medullar tension for spinal cord reconstruction. In practice, tractions on the spine must be abandoned for they increase the intramedullar tension very much and compromise any eventual "recuperation" after a medullar traumatism.
D000818:Animals; D004285:Dogs; D007103:Immobilization; D009416:Nerve Regeneration; D009984:Orthopedic Fixation Devices; D013116:Spinal Cord / Q000648:ultrastructure; D013119:Spinal Cord Injuries / Q000503:physiopathology / Q000628:therapy*; D013131:Spine
Tentatives de traitement de l'hémisection médullaire expérimentale par immobilisation rachidienne totale chez le chien.