Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0700208 (scoliosis)
 8,574 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A thoracolumbar spine model was made using synthetic resin vertebrae and silicon discs. The model was fixed to a metal frame and spinal deformation caused by loading was determined relative to three-dimensional coordinates set in the frame. A three-dimensional evaluation of the development of spinal deformity was performed by applying rotational, lordotic, and lateral flexional forces in various orders to the model. The most severe scoliosis occurred when loading was done in the order of rotational force, lordotic force, and lateral flexional force.
 ...
PMID:Biomechanical study of the development of scoliosis, using a thoracolumbar spine model. 1066 27

Finite element analysis was implemented in three stages to design a piezoresistive, micro-electro-mechanical systems sensor array consisting of four-terminal sensors placed on deformable silicon diaphragms. This sensor array was used to retrofit the Contrel-Dubousset instrumentation in order to capture forces and moments applied by surgeons in real time during scoliosis correction surgery. Outputs from the sensor array have been designed to be compatible with a low-power wireless data transmission system that is currently being developed with a collaborating team in the biomedical industry. The designed sensor array is capable of resolving forces of up to 1000 N and moments of up to 4000 N mm in three dimensions during surgery. A process flow to produce the first prototyped version of this micro sensor with known performance characteristics is presented and tested. Acceptable correlation was found between the performance of the manufactured prototypes, numerical simulation and similar documented devices.
 ...
PMID:Development of a MEMS-based sensor array to characterise in situ loads during scoliosis correction surgery. 1856 29