Luxación volar de trapezoide

Abstract

Carpal-metacarpal dislocations represent low incidence pathologies, trapezoid dislocation being an extremely rare traumatic pathology. 75% of the dislocations are dorsal and 25% to palmar. In volar dislocation the mechanism of injury is an axial force with the wrist in hyperextension, in the context of high energetic trauma; they are usually accompanied by fractures of the carpus or adjacent metacarpals.

We describe the volar dislocation of the trapezoid, secondary to transit accident, to identify it, since it has been determined that they are very rare lesions, a high index of suspicion being necessary to obtain more images and avoid late diagnosis and unnecessary morbidity of the patient.

Clinical case: A 30-year-old male patient, with no relevant medical history, suffered a motorcycle crash with chest damage, lower limb fracture and trapezoid volar dislocation associated with dislocation of the second and third carpo-metacarpal joints and diaphyseal fractures of the fourth and fifth metacarpals.

Surgical treatment was planned through open reduction, repair of the ligament structures and fixation with Kirschner wires.