Specialists

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Periarticular Ligamentous Tissue: A Biochemical and Physiologic Assessment-Collagen in Tendons and Ligaments

Collagen is the major protein in ligaments and tendons, and it is not a single entity. It is the single most abundant animal protein in mammals, accounting for up to 30% of all proteins. The collagen molecules, after being secreted by the cells, assemble into characteristic fibers responsible for the functional integrity of tissues such […]

Ehlers-Danlos Syndrome

Basics Description Ehlers-Danlos syndrome is a family of disorders involving abnormal collagen that produces connective tissue laxity, with many resultant abnormalities in the skeleton, vasculature, eyes, and other systems. At least 11 subtypes of Ehlers-Danlos syndrome have been identified, with varying patterns of inheritance and genetic causes. The age at diagnosis varies from infancy […]

Developmental Dysplasia of the Hip

Basics Description DDH covers a spectrum of varying degrees of superolateral displacement of the femur and deformation of the acetabulum, developing mostly in utero or, rarely, in infancy. It usually is discovered on routine screening in early childhood. It occasionally is discovered in teens with a limp or pain, in which case it probably […]

Ankle Instability

Basics Description Recurrent ankle sprains occurring primarily from an inversion stress on a plantarflexed ankle, which lead to chronic ankle pain and instability Divided into 2 types: Functional instability: Pain causes ankle to be unstable. Feeling of ankle giving way Neuromuscular deficit True mechanical instability: Frank insufficiency of ligaments Physiologic ROM is exceeded. Positive […]