Rotational acceleration theory

The rotational head injury concept was formulated by Holburn [10] using a photoelastic model of the head. This theory hypothesized that shear deformation generated by rotational acceleration could produce shear strain throughout the brain, resulting in diffuse injury, cerebral concussion and rupture of the bridging veins.

Later experimental studies using live subhuman primates and physical models [11,12] suggest that rotational acceleration is the most injurious in the production of concussive injuries, diffuse axonal injuries and subdural hematomas. They claimed that virtually every known type of head injury could be produced by angular acceleration. However, the level of angular acceleration used was inordinately high.

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Osteoarthritis

Osteoarthritis

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