It takes 3-4 weeks to repair the muscles, ligaments and other soft tissues after lumbar spine surgery, and about 3 months for bone graft fusion. Therefore, a lumbar brace should be worn for about 3 months. The purpose of wearing a lumbar girth: 1, so that the lumbar muscles rest; 2, can limit the lumbar for excessive activities, reduce the pull on the lumbar nerve root of the bad stimulation, reduce the traumatic reaction of the intervertebral joints, relieve and improve the pressure state of the intervertebral space, reduce the continued injury and strain, is conducive to the tissue edema and the repair of injury, but also can play a role in consolidating the effect of treatment, to prevent recurrence. Now there are many medical equipment manufacturers, made a variety of waist circumference or waist support, for different body types and different requirements of patients to choose. Patients can choose according to the thickness of the waist and their different requirements. Most of them are lightweight, strong, easy to wear and remove, etc. Some manufacturers can also customize them according to the requirements of different patients. The advantage of using waist brace or lumbar support is that it is reliable for symptom relief, but the disadvantage is that it weakens the opportunity to exercise the lumbar muscles, and long-term application may cause lumbar muscle atrophy and lumbar stiffness. During the period of wearing a lumbar brace, it is important to strengthen the functional exercise of the lumbar back muscles to promote the restoration of strength of the lumbar back muscles, which is conducive to restoring and strengthening the stability of the lumbar spine.