The patient had no obvious cause for soreness in the left hip and left lower extremity 1 year ago, and the symptoms worsened after prolonged sitting and bending, and were relieved after bed rest, but the patient did not seek medical consultation. Physical examination: pressure pain of lumbar 4 and 5 spinous processes with radiation to the left buttock and left posterior thigh and left lateral calf. The muscle tone of both lower limbs was normal. Anterior flexion of the lumbar spine was slightly limited, and the lumbar spine mobility: anterior flexion (30°), posterior extension (20°), left flexion (20°), right flexion (20°), left rotation (20°), and right rotation (20°). The left hip and left lower extremity radiating pain was present at 30 degrees of lumbar forward flexion, the left foot [toe dorsiflexion muscle strength grade 4, plantar flexion muscle strength grade 4, normal skin sensation in the saddle area, and normal contraction of the anal sphincter. Left straight leg raising test. The preoperative straight leg raising test was 30 degrees positive. The patient was admitted to the hospital to improve the examination and was treated with minimally invasive lumbar spine surgery under local anesthesia on the next day, and the soreness of the left lower limb basically disappeared on the same day after surgery. Intraoperative fluoroscopy: Postoperative appearance: no suture was required. Postoperative straight leg raising test was negative.