Treatment of adjacent vertebral fractures following multiple-level spinal fusion

2009 ◽  
pp. 153-155 ◽  
Author(s):  
J. C.-C. Wu ◽  
C. -T. Tang ◽  
D. -L. Wu ◽  
T. -H. Tsai ◽  
Yung-Hsiao Chiang
Keyword(s):  
Spinal Fusion ◽  
Vertebral Fractures ◽  
Multiple Level

Pathogenesis and Prophylaxis of Postlaminectomy Deformity of the Spine after Multiple Level Laminectomy

Neurosurgery ◽  
1981 ◽  
Vol 9 (2) ◽  
pp. 145-152 ◽  
Author(s):  
Shozo Yasuoka ◽  
Hamlet A. Peterson ◽  
Edward R. Laws ◽  
Collin S. MacCarty
Keyword(s):  
Spinal Fusion ◽  
Vertebral Body ◽  
Spinal Deformity ◽  
Adult Patients ◽  
Anterior Fusion ◽  
Multiple Level ◽  
Follow Up Study ◽  
Prophylactic Measures ◽  
Vertebral Bodies

Abstract The pathogenesis of postlaminectomy spinal deformity and instability in children was evaluated by reviewing appropriate roentgenographic findings. First, we reviewed spine roentgenograms of patients below 40 years of age who underwent spinal fusion for deformity and instability of the spine developing after a multiple level laminectomy. Two types of deformity were recognized on the roentgenograms: increased mobility between the vertebral bodies and wedging deformity of the ventral aspect of the vertebral bodies. Second, we did a follow-up study of another group of patients who had undergone laminectomy. We found the same two types of deformity in children, but not in adult patients. The incidence of deformity was higher after laminectomies of the cervical or cervicothoracic region than after lumbar laminectomies. Our data suggest that postlaminectomy spinal deformity can develop in children without irradiation or facet injury. The deformity is due to a wedging change in the cartilaginous portion of the vertebral body and to the viscoelasticity of ligaments in children. When treatment of this complication becomes necessary, anterior fusion may be effective in arresting progression. Prophylactic measures against the development of deformity are discussed. Our hypothesis concerning the mechanism of development of this complication supports the rationale of osteoplastic laminar resection and reconstruction instead of laminectomy, particularly in the management of children.

Subsequent Vertebral Fractures Following Spinal Fusion Surgery for Degenerative Lumbar Disease

Spine ◽  
2010 ◽  
Vol 35 (21) ◽  
pp. 1915-1918 ◽  
Author(s):  
Tomoaki Toyone ◽  
Tomoyuki Ozawa ◽  
Koya Kamikawa ◽  
Atsuya Watanabe ◽  
Keisuke Matsuki ◽  
...  
Keyword(s):  
Spinal Fusion ◽  
Vertebral Fractures ◽  
Fusion Surgery ◽  
Spinal Fusion Surgery ◽  
Degenerative Lumbar Disease

scholarly journals CLINICAL AND BIOMECHANICAL ASPECTS OF ANTERIOR INTERBODY FUSION WITH POROUS NITI IMPLANTS

2006 ◽  
pp. 020-024
Author(s):  
Roman Vladimirovich Pas’Kov ◽  
Konstantin Sergeyevich Sergeyev ◽  
Aleksey Olegovich Faryon
Keyword(s):  
Lumbar Spine ◽  
Spinal Fusion ◽  
Vertebral Fractures ◽  
Interbody Fusion ◽  
Experimental Studies ◽  
Bone Screw ◽  
Porous Niti ◽  
Anterior Interbody Fusion ◽  
Lower Lumbar Spine ◽  
Lower Lumbar

Objective. Basing on experiment biomechanical and clinical studies to determine the optimal method of surgery in patients with vertebral lower thoracic and lumbar fractures using porous NiTi implants. Material and Methods. A method of modeling of comminuted vertebral fractures has been developed. The outcomes after anterior interbody fusion with both porous NiTi implants alone and in combination with pedicle screw fixation and on-bone screw – rod osteosynthesis for comminuted vertebral fractures in thoracic and lumbar spine were analyzed in 61 patients. An antimigration technique for implant stabilization was developed and successfully used in 5 patients with comminuted vertebral fractures predominantly in the lower lumbar spine. Patients of this group underwent stabilometry and X-ray tomography for objective appraisal of treatment results. Results. Results of the experimental studies demonstrated that anterior mono- and bisegmental spinal fusion with onbone screw – rod or transpedicular osteosynthesis provides stable fixation, but firmer fixation is achieved by its combination with anterior spinal fusion. Most patients (87.9 %) have good results after anterior interbody fusion with porous NiTi implants. Conclusion. Combination of anterior interbody fusion with porous NiTi implants and on-bone screw – rod osteosynthesis is advisable for unstable fractures and also for early active rehabilitation of patients without external immobilization. Anterior interbody fusion with titanium antimigration screw is advisable for comminuted vertebral fractures predominantly in lower lumbar spine.

The Effect of Instrumentation With Different Mechanical Properties on the Pig Spine During Growth: Finite Element Analysis

2007 ◽  
Author(s):  
Robert Rizza ◽  
Xue-Cheng Liu ◽  
John Thometz ◽  
Mohammad Mahinfalah ◽  
Channing Tassone
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Spinal Fusion ◽  
Multiple Level ◽  
Element Analysis ◽  
Rod System

For the treatment of scoliosis, traditional instrumentations such as Cotrel-Dubousset are very rigid and effect spine growth ([1] & [2]). Recently, spinal fusion-less instrumentation has been clinically introduced. These instrumentations are more spring-like (compliant). Such instrumentations include multiple level staples, vertical expanding prosthesis, and changeable rod system. However, whether the instrumentation is rigid or compliant, the growth of the spine is effected. The actual level of instrument stiffness that affects growth is not known nor well quantified. The goal of this study was to examine the effect of the level of instrumentation stiffness on the simulation of growth of the pig spine by using finite element analysis (FEA).

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