RESUMO
A patient was shown to have acute arthritis in a metacarpophalangeal joint, with local calcification indicated by x-rays. Surgical and pathological examinations showed strictly intra-articular apatite crystal deposits and an erosive osteoarthritis. These crystal deposits could account for the synovial inflammation; they are thought to be related to bone fragments embedded in the synovium. The predisposing role of previous local injections of corticosteroids is debatable.
Assuntos
Articulações dos Dedos/análise , Hidroxiapatitas/análise , Articulação Metacarpofalângica/análise , Osteoartrite/metabolismo , Sinovite/metabolismo , Doença Aguda , Humanos , Masculino , Articulação Metacarpofalângica/diagnóstico por imagem , Pessoa de Meia-Idade , Osteoartrite/diagnóstico por imagem , Radiografia , Sinovite/diagnóstico por imagemRESUMO
The authors have dissected 24 hands previously injected with a mixture of micropaque gelatin and minium. The arterial supply of the trapezo-metacarpal joint is provided through an anastomotic circle connecting four networks (dorsal, volar, ulnar and radial). These four networks are all supplied by branches from the radial artery. Each network has one main artery and several other additional smaller arteries. Even when the radial artery has an abnormal direction, the same type of vascular supply for the trapezo-metacarpal joint is preserved, but its sources are different.
