Table 1 The clinical assessment contents and criteria

Pain VAS

Range of 0 to 10(0 indicates no pain, 10 indicates the worst pain imaginable)

Function disability

Sitting up

Wearing a belt

Sleep on the operation side

Cosmesis of the operated side

Range of 0 to 10 (10 indicates that the appearance is almost no different from the contralateral side. 0 means very bad)

Depression of the defect

The same as the contralateral side (depression < 1 cm, normal)

Depressed compared with the contralateral side(> 1 cm, depression)

Surgical satisfaction scale

Range of 0 to 10(10 indicates it’ s very satisfied. 0 indicates it’ s not satisfied at all)