Hybrid Interlaminar Endoscopic Lumbar Decompression In Disc Herniation Combined With Spinal Stenosis

BACKGROUND: Endoscopic spine surgery is an alternative to the traditional treatment of lumbar disc herniation. However, the traditional technique of interlaminar endoscopic approach is challenging and risky in patients with concomitant spinal stenosis.OBJECTIVE: To report a modified technique called hybrid interlaminar endoscopic lumbar decompression as an effective treatment.METHODS: Patients with combined lumbar disc herniation and lateral recess stenosis undergoing full-endoscopic interlaminar lumbar discectomy were retrospectively studied. The hybrid interlaminar endoscopic discectomy technique, as well as the use of 2 endoscopes with different diameters, is described in detail. The large endoscope is used for the laminotomy procedure, while the small endoscope is used for the discectomy procedure. The demographics and clinical outcomes of the patients are presented.RESULTS: A total of 19 patients were included in this study. The mean age was 46.7 yr. The visual analog scale for back and leg pain improved from 5.6 +/- 3.4 and 7.5 +/- 2.3 to 1.8 +/- 1.3 Kand 1.8 +/- 1.6, respectively (P < .001). The mean Oswestry Disability Index improved from 59.9 +/- 21.2 preoperatively to 18.2 +/- 8.5 postoperatively (P < .001). The follow-up was 8.2 mo on average. No major complications occurred, but 2 patients reported mild postoperative paresthesia. One patient had an early recurrence and underwent repeat endoscopic discectomy.CONCLUSION: Full-endoscopic lumbar discectomy provides excellent access to the intracanalicular herniation site of an intervertebral disc. By using the endoscopic technique presented here, surgeons can safely and efficiently achieve adequate decompression in patients with lumbar disc herniation combined with spinal stenosis.