PMID: 9446118Jan 31, 1998Paper

Traditional radiology in the assessment of posttraumatic carpal instability

La Radiologia medica
E RimondiM Manfrini

Abstract

Carpal instability is a painful posttraumatic syndrome with early or late loss of the normal alignment of the carpal bones, which can be caused by a variety of injuries, from minor sprain to major fracture-dislocation of the carpal-wrist complex. If the trauma causing instability is a fracture, a severe dislocation or a fracture-dislocation, the radiographic diagnosis is not particularly difficult. The morphologic and dynamic complexity of the carpal region represents, instead, a major obstacle in the radiologic diagnosis of mild or moderate sprains because the morphologic alterations on standard static views are minimal or absent in these conditions. We reviewed 214 injuries causing posttraumatic carpal instability including both the cases classified by the Data Analysis Center of the Istituto Ortopedico Rizzoli as carpal dislocations and fracture-dislocations from January, 1975, to July, 1996, and the more recent cases directly observed at our Casualty Clinic. In the former cases, we reviewed only the available images, while our patients were examined with comparative standard and under stress or dynamic views. Of 214 lesions causing posttraumatic carpal instability, 43 along the great arch were classified as severe because t...Continue Reading

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