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Abstract：
Chondroblastoma (CB) of the foot is a rare lesion. The purpose of this report was to report a large series from a single institution to analyze clinical, radiographic, and histologic characteristics; treatment; and local recurrence. We present 40 patients (30 males, 10 females; mean age 25 years) diagnosed and treated for CB of the foot from 1975 to 2012. The mean follow-up visit was 55 months (range 7 months to 11 years). Clinical presentation, histology, imaging, surgical treatment, and local recurrence were evaluated. Males were more affected than females. The main symptom was pain (100%) accompanied by swelling (35%), with median duration of 12 months. The talus (50%) and calcaneus (37.5%) were the most affected bones. All patients underwent surgery: curettage (10 cases), curettage and bone graft (15 cases), curettage and cement (13 cases), wide resection (1 case), and Chopart amputation (1 case). Ten patients (25%) had secondary aneurysmal bone cyst. One patient had local recurrence after surgery. In conclusion, patients with CB of the foot are usually older than 20 years, and males are most affected. The hindfoot is the most affected area. Surgical treatment is required, and intralesional curettage and packing with cement or graft is curative in most cases. Local recurrence in foot is lower than in other locations.
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