[Surgical treatment of carpometacarpal joint osteoarthritis of the thumb by trapeziectomy-interposition-ligamentoplasty].

Introduction: Osteoarthritis of the carpometacarpal joint of the thumb is a common pathology. Several surgical methods exist, including trapeziectomy, arthrodesis, cemented or cementless prosthesis. Therefore, one must question the legitimacy of non prosthetic surgery.

[Rhabdomyosarcoma of the hand. Apropos of a case confined to the thenar eminence].

A case of alveolar rhabdomyosarcoma of the hand in a 21-year-old patient is reported. In the light of this case, the authors review the literature and analyse the therapeutic implications.

[Mirror-image osteosarcoma of the radius. A case].

Multiple osteosarcoma is a rare tumour which usually has a poor prognosis. We report the case of a 14-year old girl who developed successively, at 2 1/2 years' interval, one osteosarcoma of the right radius bone, then one of the left radius bone. The tumours were strictly symmetrical.