抄録
Cortical drilling or myelotomy was done on 8 patients who had severe pain for a long time and had not responded to conservative therapy such as aspyrin and intra-articular steroid hormone injections. Although these were followed up for only a short period, results of this procedure were satisfactory.
Nine joints were relieved from joint pain immediately after the operation. Two of three patients who were followed up over six months had no pain and the other had recurrence of pain, Of two cases which had poor results, one had severe hydrops of the knees. The other is the patient who had had avascular necrosis of the femoral head before femoral cortical drilling for degenerative arthritis and arthrodesis was done. Partial relief of pain was seen in one case which had a 168° flexion contracture of the knee.
