[Results of tibial valgus osteotomy for internal femoro-tibial arthritis with an average 8-year follow-up]. / Devenir des ostéotomies tibiales valgisantes pour arthrose fémoro-tibiale interne avec un recul moyen de 8 ans.

One hundred and eighteen knees treated by valgus osteotomy for medial femorotibial osteoarthritis were reviewed with an average follow-up of 8 years (2-23 years). Seventy-four percent of the results were good and excellent after 5 years, 64% at 10 years and 61% after 10 years. The best results were observed in patients younger than 60 years, with femorotibial osteoarthritis not exceeding grade II of Ahlback's classification, and moderate femoropatellar osteoarthritis. The optimal final valgus observed was between 3 and 10 degrees. Four knees have been reoperated by arthroplasty.

[Giant chondrosarcoma: a case report]. / Chondrosarcome géant: a case report.

Chondrosarcoma is a slow-growing malignant tumor, with a mainly local infiltration, usually arising from skeletal cartilaginous cells. However, a few such neoplasms also arise from extraskeletal mesenchymal cells. Metastasis are usually seen with undifferentiated tumors (grade III), mainly within the lungs. The best treatment associates total surgical resection with chemotherapy. Radiotherapy is of poor use. Isolated pulmonary metastasis can be profitably withdrawn. Prognosis is about of 75% of survival after 10 years, in case of well-differentiated tumors (grade I). The prognosis is far worse for undifferentiated tumors (grade III), turning around 10% of survival after 10 years.