J Minim Invasive Spine Surg Tech.  2021 Apr;6(Suppl 1):S117-S122. 10.21182/jmisst.2021.00038.

Clinical Results And Review of Techniques of Lumbar Endoscopic Unilateral Laminotomy With Bilateral Decompression (LE-ULBD) for Lumbar Stenosis

• Kim HS
• Wu PH
• Jang IT

• KMID: 2562106
• DOI: http://doi.org/10.21182/jmisst.2021.00038

Abstract

Uniportal Lumbar Endoscopic decompression can be performed through transforaminal and interlaminar route. Interlaminar lumbar endoscopic unilateral laminotomy for bilateral decompression allows good decompression of central and lateral recess of the stenotic lumbar spine region. Both over the top decompression approach and under the ligamentum flavum decompression approach method has been recently described with differing principles and approaches despite achieving the same target in decompression of spinal canal through uniportal interlaminar endoscopic route. The authors aim to share their experience and thoughts on the 2 described approaches. Retrospective clinical cohort evaluation of patients who underwent LEULBD were performed from January 2018 to December 2019 The cohort of 278 cases of LEULBD with mean age of 64 years old were evaluated. Complica- tion rate is 3.6% and reoperation was 3.6%, mean VAS improvement at 1 weeks, 3 months and final follow up were 3.06±0.66, 2.50±0.86 and 2.17±0.91 respectively, p<0.001 and ODI impro- vement at 1 weeks, 3 months and final follow up were 31.87±5.02, 27.91±6.31 and 25.32±6.44 respectively. Lumbar Endoscopic Unilateral Laminotomy Bilateral Decompression could achieve good clinical outcomes and low rate of complications with thorough understanding of endoscopic anatomy.

Keyword

Spinal stenosis; Endoscopic spine surgery; Lumbar endoscopic unilateral laminotomy for bilateral decompression; Ligamentum flavum; Foraminal ligament; Lumbar endoscopic unilateral laminotomy for bilateral decompression