The effect of soft and rigid waistline on postoperative clinical results after lumbar fusion

INTERVENTION: Experimental group:Soft waistband;Control group:Rigid waistband; CONDITION: Lumbar degenerative disease PRIMARY OUTCOME: Incidence of adjacent segment degeneration; SECONDARY OUTCOME: Visual Analogue Scale;Oswestry Disability Index;activityof daily living;The Braden Scale for Predicting Pressure Sore Risk; INCLUSION CRITERIA: 1.The diagnosis of LDD patients, including lumbar disc herniation, lumbar spine stenosis, and lumbar spine slip; 2.L4‐L5 and L5‐S1 area fusion patients; 3.Diagnosed patients with recurrent degenerative diseases of lumbar spine; 4.Patients with lumbar fusion; 5.Patients with waists after surgery.