UBE下行黄韧带整块切除是一种很好的微创办法。 前期推文: 腰椎UBE探骨面主要在棘突椎板交界处(上椎板和黄韧带的落差); 颈椎UBE探骨面主要在关节突关节V点(上椎板和下椎板重叠处落差); 胸椎UBE探骨面主要在于横突间与椎板移形处。 01 颈椎的探骨 椎管减压 Unilateral laminotomy: 单侧入路双侧减压,适合L4/5以上到胸椎; Bilateral laminotomy: 双侧开窗减压,适合L5/S1左右宽,椎管扁平; Spinous process osteotomy: 穿棘突根部椎板及黄韧带全切,减少过顶操作的风险,减少椎管内操作,适合颈椎(椎板比较薄)。 通过两个V点,判断到椎板棘突根部。 探骨进入椎管的风险 扩张器直径 扩张器套管 不同的扩张器直径不同,图示:5-7-9-11-13-15mm。 02 去骨 穿棘突 磨穿到对面观察对面椎板和板间:1上半部分是上位椎板中间与棘突根部移形处,2下半部分为下位椎板在中央的隆起处。 穿棘突根部到对侧椎板上方 足够的棘突间空间到对侧视野。 同侧留内层骨板,对侧可见外侧骨面 磨除对侧下位椎板外层骨板 下位椎板磨掉外侧骨板,这样浅层黄韧带下止点(浅层)脱落。 上位椎板到黄韧带上止点 上位椎板磨到黄韧带上止点,上止点脱落。 深层下止点的辨别应该是难点 继续小心磨下椎板(下位椎弓根内上点这个位置),打薄小心辨别深层黄韧带的下止点位置(黄色和红色的交界)。 03 黄韧带整块切除 黄韧带下止点 下止点的突破点 上止点易脱落 侧方止点在SAP内侧缘 侧方止点。 硬膜囊膨隆 表面静脉止血减少术后血肿发生可能性。 1.Zhu C, Zhou X, Ge G, et al. Unilateral Biportal Endoscopic Laminectomy for Treating Cervical Stenosis: A Technical Note and Preliminary Results. Medicina 2023;59:305. 2.Wang D, Xu J, Zhu C, et al. Comparison of Outcomes between Unilateral Biportal Endoscopic and Percutaneous Posterior Endoscopic Cervical Keyhole Surgeries. Medicina 2023;59:437. 3.Millhuff A, Haddad H, Draper MS, et al. The midline interlaminar ligament of the spine: An anatomical study. Clinical Anatomy 2023;ca.24003. 4.Kim HS, Heo DH, Lim K, et al. Advanced Technique of Endoscopic Cervical and Thoracic Spine Surgery. Springer Nature; 2023. 5.Zhu C, Wang J, Cheng W, et al. Case Report: Bilateral Biportal Endoscopic Open-Door Laminoplasty With the Use of Suture Anchors: A Technical Report and Literature Review. Front Surg 2022;9:913456. 6.Zhu C, Deng X, Pan H, et al. Unilateral biportal endoscopic laminectomy with lateral mass screw fixation for treating cervical spinal stenosis. Acta Neurochir 2022;164:1529–33. 7.Zhu C, Cheng W, Wang D, et al. A Helpful Third Portal for Unilateral Biportal Endoscopic Decompression in Patients with Cervical Spondylotic Myelopathy: A Technical Note. World Neurosurgery 2022;161:75–81. 8.Hermansen E, Austevoll IM, Hellum C, et al. Comparison of 3 Different Minimally Invasive Surgical Techniques for Lumbar Spinal Stenosis: A Randomized Clinical Trial. JAMA Netw Open 2022;5:e224291. 9.Kim J, Heo DH, Lee DC, et al. Biportal endoscopic unilateral laminotomy with bilateral decompression for the treatment of cervical spondylotic myelopathy. Acta Neurochir 2021;163:2537–43. 10.Fujiwara Y, Manabe H, Sumida T, et al. Facet Preserving Technique by En Bloc Flavectomy in Microscopic Posterior Decompression Surgery for Lumbar Spinal Stenosis: Semicircumferential Decompression (SCD). Clinical Spine Surgery: A Spine Publication 2017;30:197–203. 11.Alimi M, Hofstetter CP, Pyo SY, et al. Minimally invasive laminectomy for lumbar spinal stenosis in patients with and without preoperative spondylolisthesis: clinical outcome and reoperation rates. SPI 2015;22:339–52. |
|