Giant cell tumor (GCT) of bone is a benign aggressive bone lesion with significant recurrence rates following surgical curettage. Historically, these tumors were approached by performing an intralesional curettage of the tumoral tissue by filling the resulting cavity using morselized iliac bone autograft. The major problems of this therapy were the high recurrence rates of up to 40–50%. Several adjuvant treatments have been proposed in order to augment resection margins, including liquid nitrogen (LN), phenol, ethanol, hydrogen peroxide (H2O2) and bone cement (polymethyl methacrylate (PMMA)). LN can be used either to preserve tissues or for controlled necrosis depending on the cycles of freezing and thawing. Usually, a quick freeze followed by a slow thaw will lead to destruction of human cells. This article reviews the results of cryosurgery with LN associated with surgical resection and the additional use of PMMA in a small group of patients with a histopathological confirmation of bone GCT with different localizations (i.e., tibia, distal radius and iliac bone). Cryosurgery with LN of bone GCT proved to be an efficient tool to decrease the recurrence rate for this tumoral type. In our series of cases, there were no complications, oncological or otherwise, at the two-year minimum follow-up, with good and excellent functional results.
Tenosynovial Giant Cell Tumor in the Midfoot Treated With Femoral Head Allograft Reconstruction