For patients suffering from severe S-shaped curvature of the thoracic and lumbar vertebrae, Chang has developed a new method: "selective thoracic fusion."
對這類胸椎、腰椎都嚴重彎曲的 S 型患者來說，張國華從成語「醍醐灌頂」這 4 字所提示領會而研創的「洗髓灌頂法」，更是一大福音。