Presentation
Although the condition is present at birth, it usually is not discovered until early adolescence, when the patient presents with a lack of pronation and supination. [emedicine.medscape.com]
Entire Body System
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Pain
Painful snapping elbow in patients with congenital radioulnar synostosis: report of two cases. J Hand Surg Am. 2010 Aug. 35(8):1336-9. [Medline]. Sachar K, Akelman E, Ehrlich MG. Radioulnar synostosis. Hand Clin. 1994 Aug. 10(3):399-404. [Medline]. [emedicine.medscape.com]
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Dysostosis
Some associated abnormalities and syndromes are genetically determined, including acrocephalosyndactyly, Apert syndrome, Carpenter syndrome, arthrogryposis, mandibulofacial dysostosis, William syndrome, Klinefelter syndrome, Holt-Oram syndrome, microcephaly [emedicine.medscape.com]
Musculoskeletal
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Hip Dislocation
About one third of cases are associated with general skeletal abnormalities, such as hip dislocation, knee anomalies, clubfoot, polydactyly, syndactyly, Madelung deformity, ligamentous laxity, thumb hypoplasia, carpal coalition, and problems of the cardiac [emedicine.medscape.com]
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Thumb Hypoplasia
About one third of cases are associated with general skeletal abnormalities, such as hip dislocation, knee anomalies, clubfoot, polydactyly, syndactyly, Madelung deformity, ligamentous laxity, thumb hypoplasia, carpal coalition, and problems of the cardiac [emedicine.medscape.com]
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Flexion Contracture
The mechanism of acute elbow flexion contracture in children with congenital proximal radioulnar synostosis. J Pediatr Orthop. 2010 Apr-May. 30(3):277-81. [Medline]. Shinohara T, Horii E, Tatebe M, Yamamoto M, Okui N, Hirata H. [emedicine.medscape.com]
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Fracture
Patients with high-energy comminuted open fractures appear to be more likely to develop this complication. [emedicine.medscape.com]
Psychiatrical
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Anger
His return to Brighton led to an angry backlash locally where far-right groups reportedly whipped up anger. Graffiti reading “Behead all Muslims” was daubed near their home and when it was attacked by a mob, police installed CCTV. [theguardian.com]
Treatment
Two-stage double-level rotational osteotomy in the treatment of congenital radioulnar synostosis. Acta Orthop Belg. 2007 Dec. 73(6):704-9. [Medline]. Green WT, Mital MA. Congenital radio-ulnar synostosis: surgical treatment. [emedicine.medscape.com]
Prognosis
Posttraumatic radioulnar synostosis is a separate entity from the congenital form, having a different cause, treatment, and prognosis. [3] The traumatic form can occur anywhere between the radius and ulna along the length of the interosseous membrane. [emedicine.medscape.com]
Etiology
Usually, motion between the two adjacent bones, if existent, is minimal. [7, 8, 9, 10, 11, 12] Etiology The most common cause of posttraumatic radioulnar synostosis is an operatively treated forearm fracture. [emedicine.medscape.com]
Epidemiology
[…] radius and ulna, or injury to the interosseous membrane. [14] Patients with closed head injuries (skull/cranial trauma) appear to be more prone to this complication, presumably for the same reason that they develop heterotopic ossification. [15, 16] Epidemiology [emedicine.medscape.com]
Pathophysiology
Groves later postulated that the success of treatment depended on where in the forearm synostosis had occurred. [4, 5] Pathophysiology The skeletal anomaly includes varying degrees of proximal radial and ulnar fusion, with or without involvement of the [emedicine.medscape.com]
Prevention
Critics say it highlights some of the shortcomings of the government’s Respect programme, which was designed to prevent disaffected young Muslims carrying out acts of terrorism in the UK or overseas. [theguardian.com]
Preventing recurrence of radioulnar synostosis with pedicled adipofascial flaps. J Hand Surg Eur Vol. 2012 Mar. 37 (3):244-50. [Medline]. Ogino T, Hikino K. [emedicine.medscape.com]