[A rare cause of pseudoclubbing (pseudohippocratic finger): the acrometastasis. A case report].

The authors report a case of acrometastasis in a patient with breast carcinoma who, after nine years of remission, developed multiple osseous metastases including one in the distal phalanx of her right little finger. The patient who was aged 48, presented with a painful swelling of the distal end of the right little finger. Three weeks previously, she had been diagnosed with multiple osseous metastases.

[The double-cup carpus: a demonstration of the variable geometry of the carpus].

Objectives: The variable frontal geometry of the carpus has been known for many years, however there is no unanimity as to whether to describe the dynamic model of the carpus as comprising row or columnar functional units. The place of the scaphoid is also discussed. This study attempts to understand the organization and the composition of the functional units of the carpus.

Intracarpal synovitis related to Dacron interposition after trapeziectomy: a report of three cases.

To prevent the mechanical consequences of trapeziectomy, interposition devices are promoted, such a Dacron spacer. We report three cases of osteolysis and synovitis related to the use of such a device. This phenomenon occurred 4 months after insertion and required revision surgery after 9 months of follow-up because of pain and extensive osteolysis of the carpal bones.

Kinematics of the wrist using 2D and 3D analysis: biomechanical and clinical deductions.

Surgery of the wrist relies on the known notions of biomechanics of the wrist. But these notions are incomplete. For a better understanding of the movements of the wrist, we studied five wrists of healthy volunteers with CT scanning.