Fig. 1From: A novel minimally invasive technique of inter-spinal distraction fusion surgery for single-level lumbar spinal stenosis in octogenarians: a retrospective cohort studyClinical pain and function indicators at preoperative and each postoperative follow-up point. There was no significant difference between the two groups in VAS, ODI, and JOA. a VAS. b ODI. c JOA. (VAS, visual analogue scale; ODI, Oswestry disability score; JOA, Japanese orthopedics association score)Back to article page