RESULTS: There were 27 patients with 30 segments of surgery. They were 12 males and 15 females with an average age of 58.81±8.1. There was significant improvement in VAS for lower back pain from 7.11±1.31 to 3.67±1.3, VAS for leg pain from 6.81±2.19 to 1.59±1.89, ODI from 26.41±8.95 to 13.69±8.34, and JOA score from 7.63±2.87 to 13.5±1.73. A-P diameter increased 134%, lateral diameter increased 120%, lateral recess depth increased 166%, disc height increased 126%, foraminal height increased 124%, spinal canal area increased 30%. The p-values were all <0.001. The average hospital stay was 6.79±3.01 days. Complications included 1 pedicle screw malformation, 1 ALL avulsion fracture, 1 abdominal herniation, 1 venous damage, 1 failure.
CONCLUSION: XLIF surgery presents a favorable option for patients with lumbar spinal stenosis. This is a minimally invasive surgical method that reduces pain, reduces bleeding, and is effective in indirectly decompressing the spinal canal both clinal and imaging.