par Burny, Franz Léon 
;Coutelier, L;Hinsenkamp, Maurice ;Nicod, C
Référence Acta orthopaedica Belgica (Ed. bilingue), 42, 4, page (301-317)
Publication Publié, 1976
;Coutelier, L;Hinsenkamp, Maurice ;Nicod, CRéférence Acta orthopaedica Belgica (Ed. bilingue), 42, 4, page (301-317)
Publication Publié, 1976
Article révisé par les pairs
| Résumé : | After a short review of the literature the author presents 2 cases of osteochondromatosis. The material was subjected to optical microscopic examination, microradiography, fluorescent microscopy. Chemical composition was studied with the aid of an electronic micro sonde. The Vickers microhardness of the several components of the fragments was measured. The sole visualised phasis was hydroxyapatit. The fragments are constituted of successive layers, the more superficial ones being the more recent ones. One distinguishes them in the following order: a superficial layer of growing cartilaginous buts; a cartilagineous layer with low mineralisation hardness 26.3.26.3 Hv; a highly mineralized cartilagineous layer hardness 67.2 Hv; an osseous layer hardness 34.7 Hv. Markings with Tetracycline demonstrate and prove the increase in the size of the fragments by concentric layers after they came freely into the joint. One of the possible mechanisms of secondary joint degeneration might be erosion of the cartilage by some very hard nodules. |
