The origins of the thenar and hypothenar muscles.

This paper presents an anatomical study of the origins of the thenar and hypothenar muscles and postulates the causes of weakness and pillar pain following carpal tunnel release.

[A new treatment of osteoid osteoma: percutaneous sclerosis with ethanol under scanner guidance]. / Un nouveau traitement de l'ostéome ostéoïde: la sclérose percutanée à l'éthanol sous guidage scanographique.

Osteoïd osteoma is a benign bone tumor, easy to diagnose because of its typical presentation. However, it may be difficult in some cases: peculiar locations (spine, femoral neck...), or lack of visibility during surgery. Numerous removal technics under CT guidance have been proposed during the last few years. We will suggest another therapeutic way to treat a case of osteoïd osteoma, located in the upper extremity of the femur. The complete removal of the nidus was not possible despite two surgical attempts. So, its percutaneous sclerosis under CT guidance was accomplished, allowing the disappearance of the pain without patient immobilization afterwards. We will compare this easy and reliable method to those already described in the literature.