Vertebral body osteolysis after minimal-access transforaminal interbody fusion

2011 ◽  
Vol 11 (6) ◽  
pp. 581-582 ◽  
Author(s):  
Ronald A. Lehman
Keyword(s):  
Vertebral Body ◽  
Interbody Fusion ◽  
Minimal Access ◽  
Transforaminal Interbody Fusion

Anterior bone cement augmentation in anterior lumbar interbody fusion and percutaneous pedicle screw fixation in patients with osteoporosis

2010 ◽  
Vol 12 (5) ◽  
pp. 525-532 ◽  
Author(s):  
Kyeong Hwan Kim ◽  
Sang-Ho Lee ◽  
Dong Yeob Lee ◽  
Chan Shik Shim ◽  
Dae Hyeon Maeng
Keyword(s):  
Vertebral Body ◽  
Interbody Fusion ◽  
Anterior Lumbar Interbody Fusion ◽  
Cement Augmentation ◽  
Adjacent Segment ◽  
Lumbar Interbody Fusion ◽  
Group I ◽  
Cage Subsidence ◽  
The Mean ◽  
Group Ii

Object The purpose of the present study was to evaluate the efficacy of anterior polymethylmethacrylate (PMMA) cement augmentation in instrumented anterior lumbar interbody fusion (ALIF) for patients with osteoporosis. Methods Sixty-two patients with osteoporosis who had undergone single-level instrumented ALIF for spondylolisthesis and were followed for more than 2 years were included in the study. The patients were divided into 2 groups: instrumented ALIF alone (Group I) and instrumented ALIF with anterior PMMA augmentation (Group II). Sixty-one patients were interviewed to evaluate the clinical results, and plain radiographs and 3D CT scans were obtained at the last follow-up in 46 patients. Results The mean degree of cage subsidence was significantly higher in Group I (19.6%) than in Group II (5.2%) (p = 0.001). The mean decrease of vertebral body height at the index level was also significantly higher in Group I (10.7%) than in Group II (3.9%) (p = 0.001). No significant intergroup differences were observed in the incidence of radiographic adjacent-segment degeneration (ASD) or in terms of pain and functional improvement. The incidences of clinical ASD (23% in Group I and 10% in Group II) were not significantly different. There was 1 case of nonunion and 3 cases of screw migration in Group I, but none resulted in implant failure. Conclusions Anterior PMMA augmentation during instrumented ALIF in patients with osteoporosis was useful to prevent cage subsidence and vertebral body collapse. In addition, PMMA augmentation did not increase the nonunion rate and incidence of ASD.

scholarly journals Subtotal Resection of a Vertebral Body with Interbody Fusion for Cervical Myelopathy

1978 ◽  
Vol 27 (3) ◽  
pp. 372-375
Author(s):  
I. Kimura ◽  
H. Shingu ◽  
T. Kamoto ◽  
G. Yamasaki ◽  
Y. Nasu ◽  
...  
Keyword(s):  
Vertebral Body ◽  
Cervical Myelopathy ◽  
Interbody Fusion ◽  
Subtotal Resection

Use of a nano-hydroxyapatite/polyamide composite in anterior cervical subtotal corpectomy and fusion

2021 ◽  
Vol 11 (9) ◽  
pp. 1491-1496
Author(s):  
Xiaojiang Li ◽  
Xudong Zhang ◽  
Shanshan Dong ◽  
Haijun Li ◽  
Chunlan Wang ◽  
...  
Keyword(s):  
Bone Graft ◽  
Vertebral Body ◽  
Cervical Spondylotic Myelopathy ◽  
Interbody Fusion ◽  
Japanese Orthopaedic Association ◽  
Fusion Rate ◽  
Graft Material ◽  
Improvement Rate ◽  
Fusion Surgery ◽  
Cervical Vertebral Body

This study aimed to explore the safety and efficacy of using nano-hydroxyapatite/polyamide (N-HA/PA) composite in anterior cervical vertebral body subtotal corpectomy and interbody fusion. Total 50 patients with cervical spondylotic myelopathy were enrolled to undergo anterior cervical spondylectomy. Bone graft pedicles were compounded with N-HA/PA and intervertebral body fusion was performed. Study outcomes included surgical efficacy and the degree of fusion. Patients in whom vertebral body fusion was performed with N-HA/PA composite pedicles had significantly improved symptoms. The postoperative Japanese Orthopaedic Association scores increased to 18.56±4.37 from 11.37±3.52, reflecting an improvement rate of 87.3%. The composite pedicle fusion rate was 96.4%. Therefore, N-HA/PA composite pedicle as a bone graft material in fusion surgery provides significant therapeutic efficacy. Moreover, the composite pedicle fusion rate is high, making it ideal for anterior cervical vertebral body subtotal corpectomy and fusion.

Design and Research of Interspinous Lumbar Non-Fusion Device

2010 ◽  
Author(s):  
Lei Li ◽  
Zhaohua Chang ◽  
Xuelian Gu ◽  
Chengli Song
Keyword(s):  
Stress Concentration ◽  
Vertebral Body ◽  
Interbody Fusion ◽  
Lumbar Fusion ◽  
Pedicle Screws ◽  
Adjacent Level ◽  
Flexion Extension ◽  
Fusion Cage ◽  
Adjacent Level Degeneration ◽  
Interbody Fusion Cage

Objective: Long term clinical data showed that lumbar fusion for Lumbar spinal stenosis (LSS) and lumbar disc degeneration (LDD) therapy could change the loads of disc and articular facet and increase the motion of adjacent segments which lead to facet arthropathy and adjacent level degeneration. This study is to design and analyze an interspinous process device (IPD) that could prevent adjacent level degeneration in the LSS and LDD therapy. Method: The IPD was designed based on anatomical parameters measured from 3D CT images directly. The IPD was inserted at the validated finite element model of the mono-segmental L3/L4. The biomechanical performance of a pair of interbody fusion cages and a paired pedicel screws were studied to compare with the IPD. The model was loaded with the upper body weight and muscle forces to simulate five loading cases including standing, compression, flexion, extension, lateral bending and axial rotation. Results: The interbody fusion cage induced serious stress concentration on the surface of vertebral body, has the worst biomechanical performance among the three systems. Pedicle screws and interbody fusion cage could induce stress concentration within vertebral body which leads to vertebral compression fracture or screw loosening. Regarding to disc protection, the IPD had higher percentage to share the load of posterior lumbar structure than the pedicel screws and interbody fusion cage. Conclusion: IPD has the same loads as pedicle screw-rod which suggests it has a good function in the posterior stability. While the IPD had much less influence on vertebral body. Furthermore, IPD could share the load of intervertebral discs and facet joints to maintain the stability of lumbar spine.

Thoracoscopic Vertebral Body Replacement with an Expandable Cage after Ventral Spinal Canal Decompression

2007 ◽  
Vol 61 (suppl_5) ◽  
pp. ONS317-ONS323 ◽  
Author(s):  
Brian T. Ragel ◽  
Amin Amini ◽  
Meic H. Schmidt
Keyword(s):  
Minimally Invasive ◽  
Vertebral Body ◽  
Visual Information ◽  
Length Of Hospital Stay ◽  
Vertebral Body Replacement ◽  
Minimal Access ◽  
Port Placement ◽  
Thoracoscopic Approach ◽  
Expandable Cage ◽  
Spine Pathology

Abstract Objective: Minimally invasive thoracic anterior surgery using a thoracoscopic approach has evolved to include spinal biopsy, debridement, discectomy, decompressive corpectomy, interbody fusions, and internal fixations. Minimal access techniques can potentially decrease surgical access morbidity and also reduce the time required for recovery and healing. The thoracoscopic approach for decompression, stabilization, and anterior vertebral reconstruction of thoracolumbar fractures is described. Methods: In this article and video, we discuss patient selection, surgical positioning, port placement, thoracic level localization, exposure and removal of fractured vertebral bodies, anterior vertebral column reconstruction using an expandable cage, instrumentation, and postoperative management. Results: The potential advantages of using a minimally invasive thoracoscopic approach include direct trajectory to anterior spine pathology, minimal tissue and rib retraction, and decreased postoperative pain and length of hospital stay. The associated disadvantages include the steep learning curve for the surgeon, the need to operate with two-dimensional visual information and long instruments, and the requirement that one have an experienced surgical assistant. Conclusion: Minimally invasive surgery using a thoracoscopic approach for vertebral body replacement with an expandable cage can be performed safely. Expandable cages facilitate the vertebral body reconstruction via minimal access surgery.

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