To evaluate the behavioral changes,paw withdrawal mechanical threshold(PWMT) and paw withdrawal thermal latency(PWTL),were measured 0,1,3,5,7,9,11,13 and 14 days after operation.

• 。 CCD术后每天给药1次,分别于术前(基础值)及术后1、3、5、7、9、11、13、14天采用Von-Frey filaments法和热辐射法评定大鼠机械刺激缩足反射阈值(PWMT)和热刺激缩足反射潜伏期(PWTL)。