[Complex fracture-dislocation of the proximal interphalangeal joint. A case report and focus on palmar proximal interphalangeal fractures-dislocations].

The palmar fracture-dislocation of the proximal interphalangeal (PIP) joint of fingers is an uncommon injury. We report a complex form in a 16-year old teenager, associating a palmar fracture-dislocation and a fracture of the base of the middle phalanx with the dorsal fragment dislocated between the neck of the proximal phalange and the palmar plate. The management was surgical with open reduction and fixation of the fragments by K-wires and temporary PIP arthrorisis. The result at 6months of follow- up after removal of the wires and physiotherapy was satisfactory. The patient was painless with a range of motion of 115°. Clinically, the sagittal and frontal stability of the joint both in flexion and extension was maintained. Osseous healing was obtained on X-ray control. The patient went back to his usual activities. A focus on palmar fracture-dislocations of PIP joint is presented through incidence, mechanism and treatment.