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Ehlers–Danlos syndromes (EDS) are a group of 13 genetic connective-tissue disorders. [7] Symptoms often include loose joints, joint pain, stretchy velvety skin, and abnormal scar formation. [1] These may be noticed at birth or in early childhood. [3]
Ehlers–Danlos syndrome is a genetic disorder caused by mutations or hereditary genes, but the genetic defect that produced hEDS is largely unknown. In conjunction with joint hypermobility, a common symptom for hEDS is smooth, velvety, and stretchy skin; a symptom largely unique to the syndrome. When diagnosing hEDS, the Beighton Criteria are ...
Hypermobile Ehlers–Danlos syndrome and hypermobility spectrum disorders may be equally severe. [5] [6] HSD is further classified into different subtypes, which include: [6] Generalized HSD (G-HSD): Involves widespread joint hypermobility affecting multiple joints. Localized HSD (L-HSD): Limited to a few joints, without generalized involvement.
Craniocervical instability is more common in people with a connective tissue disease, including Ehlers-Danlos syndromes, [1] osteogenesis imperfecta, and rheumatoid arthritis. [2] It is frequently co-morbid with atlanto-axial joint instability, Chiari malformation, [3] or tethered spinal cord syndrome.
However, if there is widespread laxity of other connective tissue, then this may be a sign of Ehlers–Danlos syndrome, Down syndrome, Klippel–Feil syndrome, juvenile idiopathic arthritis, Larsen syndrome, Marfan syndrome, osteogenesis imperfecta, and other medical conditions. [1] [2]
The Ehlers–Danlos Society is an international nonprofit organization dedicated to patient support, scientific research, advocacy, and increasing awareness for the Ehlers–Danlos syndromes (EDS) and hypermobility spectrum disorder (HSD). [1] The society has organized multiple events around the world in an attempt to raise awareness for EDS ...
Swan neck deformity has many of possible causes arising from the DIP, PIP, or even the MCP joints. In all cases, there is a stretching of the volar plate at the PIP joint to allow hyperextension, plus some damage to the attachment of the extensor tendon to the base of the distal phalanx that produces a hyperflexed mallet finger.
Early on, there may be distal laxity (hypermobility), but all of those with Bethlem myopathy eventually develop multiple joint contractures: long finger flexors, wrists, elbows, hips, knees and ankles. [5] [11] There may also be club foot, scoliosis or rigid spine.