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Biomedical subjects

I V Ponseti

Publications and source records attributed to I V Ponseti.

At least 55 records · Page 3Linked to original sources
PubMed1977

Aseptic necrosis of the humeral trochlea: a case report.

An 8-year-old boy was diagnosed as having unilateral aseptic necrosis of the humeral trochlea on the basis of: loss of elbow carrying angle and decreased range of motion, radiographic demonstration of trochlear collapse and sclerosis. Partial resolution of the radiographic changes occurred within 17 months. In the absence of marked functional impairement, the treatment is conservative clinical observation.

Child↗
PubMed1976

Pathogenesis of scoliosis.

Scoliosis often occurs in otherwise normal individuals or it may be associated with many widely differing diseases. The curve patterns are fairly uniform and the vertebrae always rotate in the frontal and horizontal planes producing convex side rotation with little displacement of the spinuous processes. Many small curves do not increase. Progressive scoliosis increases linearly and the rate of increase accelerates at puberty. No endocrine abnormalities have been observed in these patients. Usually the deformity is not caused by abnormal vertebral growth nor by abnormal collagen in verterbral ligaments. The glycosaminoglycans of nucleus pulposus are decreased in patients with idiopathic scoliosis. We speculate that loss of proteoglycans will affect the viscoelastic properties of the intervertebral discs which may result in permanent deformation. The etiology of scoliosis appears to be multifactorial with a genetic tendency to the deformity which is triggered in different individuals by different factors, some medical, some mechanical and some genetic.

Adolescent↗