[Effects of Chiari osteotomy on acetabular development in the growing subject. Experimental study in puppies].
A Chiari osteotomy was performed on 10 dogs aged 2 months in order to assess the risks of mechanical or ischaemic loss of growth potential in the peri-acetabular cartilage. The development of the acetabular roof was studied by radiographs, microradiographs and histological assessment between 2 and 12 months. Apart from a few mechanical complications, the principal findings were the absence of any signs of necrosis, persistence of a strongly osteoblastic roof and readaptation of the trabecular pattern with articular remodelling, provided the mechanical conditions were satisfactory. The osteotomy must be sufficiently low, while remaining extra-articular, and adequate medial shift must be obtained. The interposed capsular tissue can then become dense and fibrous, providing a sliding surface.
Bitan
F
F
Institut de Recherche sur les Maladies du Squelette, Institut Calot, Berck sur Mer, France.
Duriez
J
J
Egozcue
R
R
Flautre
B
B
Morel
G
G
Morin
C
C
D000077:Acetabulum / Q000166:cytology / Q000254:growth & development / Q000601:surgery*; D000818:Animals; D002356:Cartilage / Q000166:cytology / Q000254:growth & development; D004285:Dogs; D010027:Osteotomy / Q000379:methods
Effets sur le développement cotyloïdien de l'ostéotomie de Chiari chez le sujet en croissance. Etude expérimentale chez le chiot.