Abstract
BackgroundThe objective of this study was to evaluate the clinical effect and correlation between preoperative imaging parameters and the clinical effect of endoscopic transforaminal decompression for lumbar spinal stenosis.MethodsIn this prospective study, 87 patients from Shanxi Province People’s Hospital met the criteria for lumbar spinal stenosis and were recruited from June 2014 to January 2016. These patients underwent endoscopic transforaminal decompression. The clinical symptoms were evaluated by VAS, ODI, and claudication at 3 and 6 months after surgery. The overall clinical efficacy was evaluated using the MacNab score. Yellow ligament thickness and area of the dural sac were examined by MRI. Bony vertebral canal area, real spinal canal area, nerve root canal bony area, nerve root canal real area, distance between the articular joints, and vertebral canal sagittal diameter were examined by CT. The soft tissue invasion ratio of the vertebral canal and the invasion ratio of the nerve root canal were calculated. Correlations between imaging parameters and age, sex, and clinical efficacy were examined.ResultsThe MacNab scores were excellent in 47% of cases, good in 34%, generally good in 8%, and poor in 11%. VAS, ODI, and claudication were significantly improved compared with the preoperative values (P < 0.01). A significant difference was observed between the 71–81 year age group and the other age groups (P < 0.05). There were good correlations between clinical efficacy and vertebral canal sagittal diameter, distance between the articular joints, soft tissue invasion ratio of the vertebral canal, and invasion ratio of the nerve root canal.ConclusionTreatment of lumbar spinal stenosis by endoscopic transforaminal decompression can achieve good clinical results. This operation is less effective in patients older than 71 years of age. There were positive correlations between clinical efficacy and the vertebral canal sagittal diameter, the articular joints, soft tissue invasion ratio of the vertebral canal, and invasion ratio of the nerve root canal.
Highlights
The objective of this study was to evaluate the clinical effect and correlation between preoperative imaging parameters and the clinical effect of endoscopic transforaminal decompression for lumbar spinal stenosis
2) If CT and MRI showed two-segment stenosis, the clinical symptoms and signs did not show any evident manifestations in the innervated areas of the corresponding nerve roots, and the patient only had the symptom of intermittent neurogenic claudication, but without being able to determine from which segment this symptom was from, the patients were considered as being two-segment stenosis; they were included
Lawrence et al [10] summarized the relevant information on the treatment of lumbar spinal stenosis using percutaneous intervertebral foramen in multiple hospitals, and the results showed that all patients had good clinical effects and no significant differences compared with conventional surgery
Summary
The objective of this study was to evaluate the clinical effect and correlation between preoperative imaging parameters and the clinical effect of endoscopic transforaminal decompression for lumbar spinal stenosis. With the improvements of instruments and equipment, percutaneous spinal endoscopic technology can be used to treat lumbar spinal stenosis, and satisfactory clinical effects are achieved. We currently use percutaneous spinal endoscopic technology to treat lumbar spinal stenosis in some patients, and from our preliminary clinical observations, most postoperative patients achieve satisfactory clinical effects, but the actual clinical curative effects still have to be assessed. The objective of this study was to evaluate the clinical effect and correlation between preoperative imaging parameters and the clinical effect of PELD for lumbar spinal stenosis
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
