[Surgical treatment of recurrent herniated discs of the lumbar spine depending on risk factors].

According to the literature, recurrent disc herniation of the lumbar spine occurs in 5-10% of cases. Objective. To develop an algorithm for surgical treatment of recurrent lumbar spine disc herniation based on analysis of risk factors of relapse and assessment of intra- and postoperative period.

Material and methods: The study included 61 patients with recurrent intervertebral disc herniation. Thirty patients underwent repeated microdiscectomy without transpedicular fixation, 31 patients - resection of recurrent disc herniation with transpedicular fixation (PLIF technique). The control group included 63 patients without recurrent disc herniation. Mean follow-up period was 3.5 years.

Results: Discectomy with transpedicular fixation is characterized by larger extent, prolonged surgery time and rehabilitation period. However, there is lower risk of recurrent disc herniation and CSF leakage. Repeated microdisectomy without transpedicular fixation is characterized by smaller extent and shorter surgery time, as well as faster recovery period. Nevertheless, we have higher risk of recurrent disc herniation and CSF leakage. We developed a method for assessing the probability of recurrent intervertebral disc herniation. This algorithm allows us to predict the probability of recurrent disc herniation in a particular patient with 86.7% accuracy.

Conclusion: We proposed an algorithm for choosing surgical treatment of recurrent disc herniation. Microdiscectomy without fixation is advisable for the risk of recurrent disc herniation <30%, discectomy with transpedicular fixation - for risk of disc herniation >30%.