Epstein Nancy E
Chief of Neurosurgical Spine/Education, NYU Winthrop Hospital, Mineola, New York, USA.
Surg Neurol Int. 2017 Jul 20;8:153. doi: 10.4103/sni.sni_248_17. eCollection 2017.
Patients with marked osteoporosis and/or obesity/morbid obesity and severe multilevel lumbar stenosis and other pathology often undergo multilevel laminectomies with non instrumented posterolateral fusions (PLF). The other pathology may include combinations of degenerative spondylolisthesis/lysis, foraminal/far lateral discs, and/or synovial cysts requiring more extensive facet resections. Presently, spine surgeons often use bone graft expanders to supplement the lamina autograft harvested in the course of laminectomy/decompressions for the PLF mass.
In 59 patients, we prospectively analyzed the fusion rates following multilevel laminectomies/noninstrumented fusions using lamina autograft and the bone graft expander Nanoss (RTI Surgical Alachua, FL, and USA) with autogenous bone marrow aspirate (BMA). Patients averaged 66.1 years of age; many exhibited marked osteoporosis (48 patients) and obesity (13 of 27 morbidly obese). Magnetic resonance (MR) and computed tomography (CT) studies documented stenosis/ossified yellow ligament (OYL) and degenerative spondylolisthesis (51 patients)/lysis (2 patients), synovial cysts (32 patients), and disc herniations (10 of 21 far lateral). Patients were followed remove up for an average of 3.12 years.
Average 4.0 level laminectomies/1.2 level noninstrumented fusions utilized lamina autograft and Nanoss/BMA. Both X-ray/CT studies performed an average of 4.9 months postoperatively documented a 97% fusion rate (57 of 59 patients). Two patients with severe osteoporosis, morbid obesity, and smoking histories exhibited pseudarthroses; neither was sufficiently symptomatic to require secondary surgery.
Fifty-nine patients with multilevel lumbar stenosis/OYL and other pathology underwent multilevel lumbar laminectomies/noninstrumented fusions using lamina autograft and Nanoss/BMA. Both dynamic X-ray/CT studies confirmed a 97% fusion rate an average of 4.9 months postoperatively. Nanoss/BMA contributed to a high posterolateral lumbar non instrumented fusion rate without complciations.
患有明显骨质疏松症和/或肥胖症/病态肥胖症以及严重多节段腰椎管狭窄症和其他病变的患者,通常会接受多节段椎板切除术并进行非器械辅助的后外侧融合术(PLF)。其他病变可能包括退变性椎体滑脱/椎弓根峡部裂、椎间孔/远外侧椎间盘以及/或需要更广泛关节突切除的滑膜囊肿的组合。目前,脊柱外科医生经常使用骨移植扩张器来补充在椎板切除/减压过程中获取的用于PLF植骨块的椎板自体骨。
在59例患者中,我们前瞻性分析了使用椎板自体骨以及骨移植扩张器Nanoss(美国佛罗里达州阿拉楚阿市RTI Surgical公司生产)和自体骨髓抽吸物(BMA)进行多节段椎板切除/非器械辅助融合术后的融合率。患者平均年龄为66.1岁;许多患者表现出明显的骨质疏松症(48例)和肥胖症(27例病态肥胖患者中的13例)。磁共振成像(MR)和计算机断层扫描(CT)研究记录了椎管狭窄/黄韧带骨化(OYL)以及退变性椎体滑脱(51例患者)/椎弓根峡部裂(2例患者)、滑膜囊肿(32例患者)和椎间盘突出(21例远外侧患者中的10例)。对患者进行了平均3.12年的随访。
平均进行了4.0节段的椎板切除术/1.2节段的非器械辅助融合术,使用了椎板自体骨以及Nanoss/BMA。术后平均4.9个月进行的X线/CT研究均显示融合率为97%(共59例患者中的57例)。两名患有严重骨质疏松症、病态肥胖症且有吸烟史的患者出现了假关节;两人均无足够症状需要二次手术。
59例患有多节段腰椎管狭窄/OYL和其他病变的患者接受了使用椎板自体骨以及Nanoss/BMA的多节段腰椎椎板切除术/非器械辅助融合术。动态X线/CT研究均证实术后平均4.9个月时融合率为97%。Nanoss/BMA有助于实现较高的腰椎后外侧非器械辅助融合率且无并发症。