Volar perilunate dislocation in an ununited scaphoid of a child: a case report.

Volar perilunate dislocations of the wrist are rare. An unusual case of volar perilunate dislocation in the presence of an ununited scaphoid in a skeletally immature patient is presented.

Pigmented villonodular synovitis of the knee in a patient on oral anticoagulation therapy: a case report.

Introduction: Pigmented villonodular synovitis is a disease which affects the synovial joints and tendon sheaths. Although the exact aetiological factors are not known, we believe that recurrent haemarthrosis has a role in the aetiology of this condition.

Case Presentation: A 62-year-old Caucasian man presented with gradually worsening pain and stiffness in his right knee.

Vertical dislocation of the patella: report of 2 cases.

Vertical dislocation of the patella is rare and usually occurs as a result of blunt trauma. The patella rotates around a vertical axis. It can be diagnosed by its typical clinical features.