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AI InsightThus, it could be a safe and efficient surgical technique for patients undergoing interlaminar lumbardiscectomy.
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Özet
AIM: To determine the efficacy, safety, and clinical value of a novel surgical procedure involving the blunt perforation of theligamentum flavum (LF) during endoscopic interlaminar lumbar discectomy.MATERIAL and METHODS: This was a prospective study of 50 patients (25 males, 17-51 years of age) undergoing lumbardiscectomy for single segment L4/L5 or L5/S1 disc herniation. They were grouped into the control (cutting of the LF; n=22) and test(blunt perforation; n=28) groups. Intraoperative injury to the LF was evaluated by electrophysiological monitoring. The time requiredfor perforation, total surgical time, and proportion of epidural sac and nerve root injury were assessed.RESULTS: Among the enrolled patients, 10% showed herniation of the L4/5 segment and 90% of the L5/S1 segment. The successrate for the perforation of LF was 93%. The intraoperative observation showed mild self-closing injury to the LF tissue. The testgroup showed shorter overall surgical time (43 vs. 56 minutes) and shorter duration to go through the LF (1 vs. 13 minutes, p<0.001).No dural sac or nerve root injury resulting from blunt perforation of the LF was observed.CONCLUSION: Compared to cutting, blunt perforation of the ligamentum flavum could reduce surgical time and injury to ligamentumflavum and surrounding tissues. Thus, it could be a safe and efficient surgical technique for patients undergoing interlaminar lumbardiscectomy.