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Demographic and modifiable factors associated with knee contracture in children with cerebral palsy
Lund Univ, Dept Hlth Sci Lund, Div Physiotherapy, Lund, Sweden..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.ORCID iD: 0000-0003-3691-8326
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Lund Univ, Dept Clin Sci Lund, Orthopaed, Lund, Sweden..
2018 (English)In: Developmental Medicine & Child Neurology, ISSN 0012-1622, E-ISSN 1469-8749, Vol. 60, no 4, p. 391-396Article in journal (Refereed) Published
Abstract [en]

AimTo identify the prevalence of knee contracture and its association with gross motor function, age, sex, spasticity, and muscle length in children with cerebral palsy (CP). MethodCross-sectional data for passive knee extension were analysed in 3045 children with CP (1756 males, 1289 females; mean age 8y 1mo [SD 3.84]). CP was classified using the Gross Motor Function Classification System (GMFCS) levels I (n=1330), II (n=508), III (n=280), IV (n=449), and V (n=478). Pearson's chi(2) test and multiple binary logistic regression were applied to analyse the relationships between knee contracture and GMFCS level, sex, age, spasticity, hamstring length, and gastrocnemius length. ResultsKnee contracture greater than or equal to 5 degrees occurred in 685 children (22%). The prevalence of knee contracture was higher in older children and in those with higher GMFCS levels. Odds ratios (ORs) for knee contracture were significantly higher for children at GMFCS level V (OR=13.17), with short hamstring muscles (OR=9.86), and in the oldest age group, 13 years to 15 years (OR=6.80). InterpretationKnee contracture is associated with higher GMFCS level, older age, and shorter muscle length; spasticity has a small effect. Maintaining muscle length, especially of the hamstrings, is important for reducing the risk of knee contracture.

Place, publisher, year, edition, pages
John Wiley & Sons, 2018. Vol. 60, no 4, p. 391-396
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Orthopaedics
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URN: urn:nbn:se:uu:diva-351680DOI: 10.1111/dmcn.13659ISI: 000428388000019PubMedID: 29318610OAI: oai:DiVA.org:uu-351680DiVA, id: diva2:1213685
Available from: 2018-06-05 Created: 2018-06-05 Last updated: 2018-06-05Bibliographically approved

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Rosenblad, AndreasRodby-Bousquet, Elisabet

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