CARPO METACAPAL DISLOCATION WITHOUT FRACTURE : A CASE REPORT

Traumatic carpo-metacarpal dislocations without associated fractures are rare, and the palmar variant is particularly exceptional. If left untreated, these injuries can lead to instability and premature joint degeneration. We report the case of a palmar carpo-metacarpal dislocation of the fourth metacarpal in a 42-year-old woman. Upon clinical examination, the patient presented with a 10-degree rotational deformity and limited adduction (radial inclination). Imaging revealed a diastasis between the bases of the fourth and fifth metacarpals, along with a palmar dislocation of the base of the fourth metacarpal. Treatment consisted of a closed reduction, stabilized with pinning, followed by joint immobilization for 6 weeks. After a 15 months follow-up, the patient was pain-free and had resumed all activities without any discomfort.