[The use of hydroxyapatite in the surgical treatment of benign non aggressive bone lesions]. / O emprego da hidroxiapatita no tratamento cirúrgico das lesões ósseas benignas não agressivas.

The authors studied, in the period 1990-1993, 31 patients with benign non aggressive bone lesions, surgically treated with intralesional resection followed by the introduction of hydroxyapatite. Their follow-up was two years and one month. The authors discussed the surgical indications, the operative technique employed, and the post-operative results which were considered to be good in 29 of the patients studied. Occurred complications in three patients: local infections in two and sterile fistula in one. It is concluded that the use of hydroxyapatite is a good option as substitute of the autologous bone graft.

[Surgical approach to giant cell tumors of the distal radius]. / Abordagem cirúrgica do tumor de células gigantes da extremidade distal do rádio.

The authors review 15 patients with giant cell tumor of the distal part of the radius in the period from 1980 to 1993. Pain was always present. The treatment of stage 2 with marginal resection and methylmethacrylate yielded excellent result. In the treatment of stage 3 the authors emphasize the need of wide resection. In these patients the best functional results were obtained with the use of vascularized proximal epiphyseal fibular graft, preserving some painless mobility of the wrist and forearm.