Cobb 角 45°以上で治療終了した特発性側弯症非手術例の検討

The indication of surgical treatment for idiopathic scoliosis showing a Cobb angle of more than 45 degrees after skeletal maturity is controversial. We investigated the clinical course of 20 patients with idiopathic scoliosis who had been treated conservatively showing a Cobb angle of more than 45 degrees at the time of skeletal maturity. At the final follow-up, the Cobb angle had increased in 8 out of 20 patients. The Cobb angle had progressed in patients with single curve or severe rotation of the vertebrae even after skeletal maturity. A few patients complained of low back pain and cosmetic discontent. The progression of deformity should be observed in patients showing idiopathic scoliosis with single curve or severe rotation of the vertebrae even after skeletal maturity.