RESUMO
This histological study is based on a macroscopical study of post-mortem hip joints (Byers, Contepomi, and Farkas, 1970) in which two categories of articular cartilage alterations, in addition to osteophytes, were described. One category consisted of 'limited' alterations which occurred frequently, had several subcategories, and rarely led to joint deformity. The other consisted of progressive alterations which caused bone exposure and joint deformity. Histological sections from both groups, including all the subcategories of the first, were studied. Initially the mechanisms that destroy cartilage were determined, and then their prevalence was assessed. Six mechanisms were found, all occurring in the group of limited alterations with varying prevalence and in varying combinations. Only one, fibrillation, occurred in the progressive group.
Assuntos
Cartilagem Articular/patologia , Articulação do Quadril/patologia , Acetábulo/patologia , Adolescente , Adulto , Idoso , Autopsia , Criança , Pré-Escolar , Cabeça do Fêmur/patologia , Humanos , Lactente , Pessoa de Meia-IdadeRESUMO
Correlations between alterations in hip joints, described in a post-mortem study, have established the independence of limited and progressive alterations, and in addition have shown that there is a weak association between limited alterations and osteophytes and a strong one between progressive alterations and osteophytes. Nevertheless limited alterations may rarely undergo progressive damage. Cysts relate strongly to osteophytes but only moderately with progressive alterations. Limited alterations of both head and acetabulum can be subdivided. Some implications of these findings are discussed.
Assuntos
Articulação do Quadril/patologia , Acetábulo/patologia , Adolescente , Adulto , Idoso , Autopsia , Criança , Pré-Escolar , Cistos/patologia , Cabeça do Fêmur/patologia , Humanos , Lactente , Pessoa de Meia-IdadeRESUMO
Intra-articular fractures were produced in rabbit knee joints. The articular cartilage of the injured joints was processed histologically and analysed by a complex thermoanalytical method. It was demonstrated that intra-articular fractures in the early stages have essentially no irreversible damaging effects on the composition of articular cartilage of injured joints.
Assuntos
Cartilagem Articular/patologia , Modelos Animais de Doenças , Traumatismos do Joelho/patologia , Fraturas da Tíbia/patologia , Animais , Cartilagem Articular/metabolismo , Articulação do Joelho/metabolismo , Articulação do Joelho/patologia , Coelhos , Temperatura , Fatores de TempoRESUMO
Histologic illustrations of stages of Sudeck's syndrome in the case of a 22 year old man, following amputation of the left mid-foot. Histometric techniques were also used.
Assuntos
Distrofia Simpática Reflexa/patologia , Adulto , Cotos de Amputação , Amputação Traumática , Artérias/patologia , Osso e Ossos/patologia , Pé/cirurgia , Traumatismos do Pé , Ósteon/irrigação sanguínea , Ósteon/patologia , Humanos , Traumatismos da Perna/cirurgia , Masculino , Microcirculação , Radiografia , Recidiva , Distrofia Simpática Reflexa/diagnóstico por imagem , Distrofia Simpática Reflexa/etiologiaRESUMO
During operative treatment for intraarticular fractures osteochondral fragments were retrieved in 12 cases and sent for histological evaluation. The histology showed microlesions of the articular cartilage and subchondral bone. An etiological connection between these histological changes and posttraumatic osteoarthritis is being discussed.