THE HARTSHILL HORSESHOE A NEW DEVICE FOR ANTERIOR SPINAL FIXATION
Journal Title: Journal of Turkish Spinal Surgery - Year 1990, Vol 1, Issue 4
Abstract
Anterior spinal fixation aims to achieve mechanically and biologically sound fusion between adjacent vertebral bodies. Current techniques are biomechnaically poor, and do not lake account of cyclical flexion and torsion loads which can result in graft extrusion and pseudarlhrosis. We have designed a new device to improve on currently available techniques. The implant is placed in the excised disc space, maintaining the disc height and avoiding the major vessels. 'There is greatly improved torsional satibilty. The bone graft is contained in the centre of the device, and cannot extrude. The device has been implanted in 12 patients, the longest for 18 months. Initial results are good, with radiological evidence of sound fusion, but the carbon fibre epoxy material has proved to have some undesirable features. We conclude that the basic concept and shape are satisfactory, but that the material is less than ideal. We are currently assessing different materials and fabrication techniques to achieve an implant which is biomechanically stable and has osseo-integrative properties.
Authors and Affiliations
N. W. Valentine, G. W. Hastings, P. J. Sell ,J. Dove
Keywords
Related Articles
- EP ID EP676119
- DOI -
- Views 155
- Downloads 0
CT EVALUATION OF VERTEBRAL ROTATION IN SCOLIOSIS
In 34 patients with scoliosis; using CT, a new method was proposed to evaluate the change in rotation precisely. The angle of rotation of the apical vertebra was measured by taking the neutral vertebra as a reference poi...
CLINICAL OUTCOMES OF ASEPTIC THORACOLUMBAR PSEUDOARTHROSIS THAT OCCURRED AFTER POSTERIOR SPINAL INSTRUMENTATION
Objective: In this study, we aimed to retrospectively evaluate the clinical and radiological findings and the mid to long-term results of aseptic pseudoarthrosis that emerged after posterior thoracolumbar segmental in...
THE MORPHOMETRY OF THORACIC PEDICLES AND PEDICLE-RIB UNITS AND THEIR RELATIONS TO AORTA: AN MRI STUDY
Aim: The objective of the study is to determine the safe and reliable area in thoracic spine that application of intrapedicular screw is difficult. Materials and Methods: A study group is constituted 42 adults (21...
ANEVR‹ZMAL KEM‹K K‹ST‹
Anevrizmal kemik kisti (AKK); kemi¤in benign tümör benzeri lezyonlar›ndan biridir. AKK, primer kemik tümörleri aras›nda % 1 oran›nda izlenmektedir. AKK’nin % 11-20 oran›nda omurga tutulumu gösterdi¤i bildirilmißtir. Bu...
POSTDECOMPRESSION LUMBAR İNSTABİLİTY
34 patients who had degenerative lumbar stenosis underwent total laminectomy and bilateral medial facetectomy were studied ciinically and radiographicaUy. The patients were invited to our outpatient clinic at the mean of...