Excellent is a score ≥ 16, good is 15-11, can be 10-6, poor is 5-0. Symptoms and complaints (1) Low back pain and discomfort Qiqihar Jianhua Hospital, Department of Orthopedics and Surgery, Li Chenggang a No 3 points b Sometimes 2 points c Often or sometimes severe 1 point d Often very severe 0 points (2) Lower limb pain and numbness a No 3 points b Sometimes 2 points c Often or sometimes severe 1 point d Often very severe 0 points (3) Weakness in urination and defecation and perineal numbness a No 3 points b Sometimes 2 points c Often or sometimes severe 1 point d Often very severe 0 points 2.2 Work and life skills a Normal 3 points b Unsustainable 2 points c Mildly impaired 1 point d Unable to complete 0 points 2.3 Function of lower extremities a Normal 0 points b Only weakness, discomfort, or intermittent claudication after walking 200 m -1 point c Significant intermittent claudication -2 points 2.4 Clinical signs (1) Spinal mobility, paravertebral tenderness radiating pain and straight leg raising and strengthening test a negative 3 points b mild radiological pain with paravertebral palpation or positive straight leg raising and strengthening test greater than 50 degrees 2 points c slightly restricted lumbar mobility, radiological pain with paravertebral palpation, positive straight leg raising and strengthening test 1 point d severely restricted lumbar mobility, radiological pain, positive straight leg raising and strengthening test less than 30 degrees 0 points (2) sensation a normal 2 points b mildly impaired 1 point c clearly impaired 0 points (3) muscle strength a normal 2 points b mildly decreased 1 point c obviously decreased 0 points (4) tendon reflex a normal 1 point b weakened or disappeared 0 points