RESUMO
A case of fracture of the hook of the hamate associated with a palmar dislocation of the fifth carpometacarpal joint is described. Surgical exploration revealed that the different elements of the flexor carpi ulnaris musculotendinous unit, which includes the pisiform, the pisohamate and pisometacarpal ligaments, were displaced proximally together with the avulsed fragment of the hook of the hamate and the fifth metacarpal. These findings suggest that such an injury results from a sudden, violent contraction of the flexor carpi ulnaris against the fixed wrist. It was successfully treated by open reduction and fixation of the hook of the hamate fracture and stabilization of the carpometacarpal joint.
Assuntos
Ossos do Carpo/lesões , Traumatismos dos Dedos/cirurgia , Fraturas Ósseas/cirurgia , Luxações Articulares/cirurgia , Articulação do Punho/cirurgia , Acidentes de Trânsito , Adulto , Fios Ortopédicos , Ossos do Carpo/diagnóstico por imagem , Ossos do Carpo/cirurgia , Traumatismos dos Dedos/diagnóstico por imagem , Fixação Interna de Fraturas , Consolidação da Fratura/fisiologia , Fraturas Ósseas/diagnóstico por imagem , Humanos , Luxações Articulares/diagnóstico por imagem , Masculino , Motocicletas , Complicações Pós-Operatórias/diagnóstico por imagem , Radiografia , Articulação do Punho/diagnóstico por imagemRESUMO
Three cases are reported in which open reduction and internal fixation were required to stabilize an unstable first carpometacarpal joint with simultaneous fracture of the trapezium and Bennett's fracture. The results were good in terms of range of movement and radiological appearance, all of them returning to normal activities, including heavy manual work.
