抄録
We treated a rare case of bilateral osteochondritis dissecans of the talus. The patient was a 30-year-old man with periodic complaints of bilateral ankle pain after standing for long periods during a six year period. In April of 2002, there were abnormalities of both medial talar domes on radiographs and MRI. The talus on the right side was stage 2, and the left talus was stage 3 according to Bernt and Harty’s classification. The right talus was grade 2, and the left talus was grade 3 according to Kumai’s MRI classification. The diagnosis was bilateral osteochondritis dissecans. Arthroscopic examination found irregularity and softening in both medial talar domes. The right talus was treated by transmalleolar drilling, and the left talus was treated by fragment fixation with bioabsorbable osteosynthetic implants. After operation the patient used patellar tendon bearing braces (PTB) for two months on the right side, and for four months on the left side. The follow-up period was 15 month. The preoperative JOA score was 88 points for the right side and 76 points for the left side. The postoperative JOA score was 92 points for each sides.
