After minimally invasive lumbar spine surgery, muscle atrophy in the buttocks and calves does not usually occur. If such a situation occurs, it may be due to disuse atrophy, or it may also be caused by nerve damage. 1. Wasting atrophy: after minimally invasive lumbar spine surgery, the patient is lying in bed for too long, failing to get effective and sufficient bed activities, lack of lumbar and leg exercise, loss of muscle function, triggered by wasting atrophy, and gradually strengthen the exercise can be. 2. Nerve damage: Due to the complex distribution of nerves and blood vessels in the lumbar region, nerve damage may be caused by misoperation during surgery, resulting in the loss of sensation of the corresponding innervated muscle groups, and the blood can not be supplied normally, resulting in muscle atrophy. However, the chance of this situation is relatively small, generally minimally invasive will not affect the nerves, but do not rule out the possibility of occurrence. If you experience muscle atrophy in the buttocks and lower legs after minimally invasive treatment of the lumbar spine, please consult a doctor in time to avoid further aggravation of the symptoms.