2021년도 제71차 대한통증학회 학술대회 및 연수교육

Failed back surgery syndrome (FBSS) is a commonly encountered disease after lumbar surgery. There are many cases where it is difficult to choose a treatment because no specific cause can be found. Nevertheless, according to recent reports, adhesiolysis has shown reasonable evidence. However, considering its poor cost-effectiveness, adhesiolysis cannot be used as the first line of treatment. FBSS patients often suffer from chronic pain; accordingly, they become frustrated when this treatment produces a poor response. Therefore, before the procedure, the target group must be selected carefully. We sought to identify the pre-procedure factors predicting the effect of adhe-siolysis in FBSS. A total of 150 patients were evaluated and analyzed retrospectively. After 3 months of the procedure, patients whose numeric rating scale (NRS) decreased by 2 points com-pared to before the procedure were classified into the responder group. Of these 150 patients, 69 were classified as responders 3-months after the procedure (46%). The outer diameter of the cath-eter used during the procedure and grade of foraminal stenosis were correlated with the proce-dure effect. In conclusion, 2.1mm outer diameter of the catheter used during the procedure than 1.7mm of it and the milder the foraminal stenosis, the greater the pain reduction effect 3 months after the procedure.