Publication

Analysis of the stability of a posterior fusion system for the treatment of burst fractures

Dominique Pioletti, Arne Christian Vogel
2007
Student Projects

Abstract

In the framework of spine traumatology, burst fractures are severe and are often caused by car accidents or by falls. The vertebra breaks under the traumatic compression and pieces of it are shattered in all directions. This type of fracture is often treated by spinal fusion using a posterior sytem with rods and pedicular screws. By decompressing the traumatic region, the fracture is allowed to heal and to restore to a physiological geometry. However, a progressive kyphosis (flexion of the spine) is clinically observed arising from the rotation of the pedicular screws in the vertebra. The correction is therefore lost and proper healing compromised. This semester project (12 credits) consists of analysing and optimizing the stress around the pedicular screws under compressive loading of a posterior spinal fusion system

Official source

https://infoscience.epfl.ch/entities/publication/7d1f7940-9fdb-4e12-b544-aeeb8999b8de

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Dominique Pioletti, Arne Christian Vogel
2007
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/7d1f7940-9fdb-4e12-b544-aeeb8999b8de

About this result

Related concepts (32)

Spinal fusion

Spinal fusion, also called spondylodesis or spondylosyndesis, is a neurosurgical or orthopedic surgical technique that joins two or more vertebrae. This procedure can be performed at any level in the spine (cervical, thoracic, lumbar, or sacral) and prevents any movement between the fused vertebrae. There are many types of spinal fusion and each technique involves using bone grafting—either from the patient (autograft), donor (allograft), or artificial bone substitutes—to help the bones heal together.

Vertebra

The spinal column, a defining synapomorphy shared by nearly all vertebrates, is a moderately flexible series of vertebrae (: vertebra), each constituting a characteristic irregular bone whose complex structure is composed primarily of bone, and secondarily of hyaline cartilage. They show variation in the proportion contributed by these two tissue types; such variations correlate on one hand with the cerebral/caudal rank (i.e., location within the backbone), and on the other with phylogenetic differences among the vertebrate taxa.

Vertebral column

The vertebral column, also known as the backbone or spine, is part of the axial skeleton. The vertebral column is the defining characteristic of a vertebrate in which the notochord (a flexible rod of uniform composition) found in all chordates has been replaced by a segmented series of bone: vertebrae separated by intervertebral discs. Individual vertebrae are named according to their region and position, and can be used as anatomical landmarks in order to guide procedures such as lumbar punctures.