Radiological findings at baseline
stenosis
DEGENERATIVE CHANGE, STENOSIS
The cohort presented a high degree of degenerative changes preoperatively. The percentage of patients with severe scores were as follows: Lee (2–3) 2.9%, Schizas (C–D) 71.3%, cross-sectional area (< 75mmBaseline data. Illustration of the percentage of patients with worst dichotomy score (orange) in each radiological classification systemThe grade of foraminal stenosis on the index level based on Lee’s classification was as follows:Lee score 0: 347 patientsLee score 1: 55 patientsLee score 2: 11 patientsLee score 3: 1 patient