Results 251 to 260 of about 1,268,316 (299)

Animal models for spinal fusion

The Spine Journal, 2005
Animal models for spinal fusion are essential for preclinical testing of new fusion methods and adjuncts. They allow for control of individual variables and quantification of outcome measures. Model characteristics are considered. Preclinical experiments to evaluate proof of concept, feasibility, and efficacy are generally studied in an orderly ...
Inneke H, Drespe, Gert K, Polzhofer, A Simon, Turner, Jonathan N, Grauer   +3 more
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Biologic Enhancement of Spinal Fusion

Spine, 1995
Literature review.To review the available animal and clinical data on biologic enhancements of spinal fusion.Lumbar spinal arthrodesis may result in pseudarthrosis in 5% to 35% of patients. Although much research has focused on the mechanical factors affecting spinal fusion, the use of internal fixation has not eliminated the problem of spinal ...
S D, Boden, J H, Schimandle
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Biomechanics of Spinal Fixation and Fusion

Spine, 1991
Recent experiments have shown that in the sheep spine a displacement of 5.2 mm and a strain of 36% was present at the lumbosacral joint, where fusion almost never occurred when multiple, small (5 mm x 14 mm) cancellous and corticocancellous bone grafts were placed in an interlocking fashion across the decorticated lamina of the lumbar spine and sacrum.
D A, Nagel, W T, Edwards, E, Schneider
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Carrier materials for spinal fusion

The Spine Journal, 2005
The rise in spinal fusion procedures has led to an increase in the available number and variety of bone graft substitutes. As our understanding of the biologic processes that influence bony fusion has improved, appreciation for the role of the carrier material involved in bone grafts has also increased.The abundance of products available leaves a ...
Brian, Kwon, Louis G, Jenis
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BONE GRAFTING FOR SPINAL FUSION

Orthopedic Clinics of North America, 1999
At least 250,000 spinal fusions are performed in the United States each year, nearly all requiring implantation of bone graft material. The preferred technique for most of these operations is the transplantation of structured or morcellized autologous corticocancellous bone from the iliac crest.
H S, Sandhu, H S, Grewal, H, Parvataneni
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Rationale for Spinal Fusion in Lumbar Spinal Stenosis

Spine, 1989
In order to define the indications for spinal fusion in patients undergoing decompression for lumbar spinal stenosis, 114 patients surgically treated were reviewed. Follow-up was 24 to 108 months. Patients were grouped into four categories: 15 with lateral recess stenosis, 45 with central-mixed stenosis, 43 with stenosis following prior lumbar surgery ...
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Kinematic Analysis of Spinal Fusions

Investigative Radiology, 1976
Two cases with clinical suspicion of incompletely healed anterior fusion between L5 and S1 were examined by means of a roentgen stereophotogrammetric method. In both cases a pseudarthrosis was found. The method makes it possible to disclose rotations and translations between veretebrae with an accuracy of about 0.2degree and 30-120 mum, respectively.
T H, Olsson, G, Selvik, S, Willner
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Spinal Fusion for Kyphosis in Achondroplasia

Journal of Pediatric Orthopaedics, 2004
Persistent thoracolumbar kyphosis in patients with achondroplasia is typically prevented with sitting modifications and bracing. When the kyphosis persists and progresses despite bracing, spinal fusion is indicated to prevent further progression and neurologic complications.
Michael C, Ain, Eric D, Shirley
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Synthetic Biomaterials for Spinal Fusion

Orthopedics, 1989
ABSTRACT: Calcium hydroxylapatite (HAP), tricalcium phosphate (TCP), and Bioglass (BG) were implanted in the spines of dogs to determine their potential in augmenting and enhancing spinal fusion. HAP and TCP showed continuous bone to biomaterial interfaces of varying degrees.
R J, Nasca, J E, Lemons, D A, Deinlein
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Laparoscopic Spinal Fusion Procedures

AORN Journal, 1997
ABSTRACTLaparoscopic procedures, such as spinal fusions, facilitate patients' faster returns to functioning lifestyles. Fusions using implanted threaded cylinders made of a porous titanium alloy can be performed at the cervical, thoracic, and lumbar spine levels.
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