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Objective: To evaluate the prevalence of joint laxity in children born preterm assessed in the first 2 years, the relationship between joint laxity and motor performance at preschool age, and possible changes over time in a subgroup of children followed longitudinally., Study Design: The revised scale of Beighton Score was used to evaluate joint laxity in a population of 132 preschool children born preterm between 24 and 32 weeks of gestational age. All were assessed for joint laxity between 12 and 24 months of age. Children also performed the Movement Assessment Battery for Children-Second Edition between the age of 3 years and 6 months and 4 years; the age at onset of independent walking also was recorded., Results: The total Beighton Score ranged between 0 and 8. Twenty percent of the cohort showed joint laxity. No differences related to sex or gestational age were observed. Children born preterm with joint laxity achieved later independent walking and achieved lower scores on Movement Assessment Battery for Children-Second Edition than those without joint laxity. In 76 children born preterm, an assessment for joint laxity was repeated once between 25 and 36 months and again after >36 months. No statistically significant difference was observed between the 3 assessments., Conclusions: The Beighton Score can be used to assess generalized joint laxity in children born preterm. As the presence of joint laxity influenced motor competences, the possibility to early identify these infants in the first 2 years is of interest to benefit from early intervention and potentially improve gross motor skills and coordination., (Copyright © 2018 Elsevier Inc. All rights reserved.)

Objective: To provide a revision of the Beighton score adapted for children younger than the age of 5 years, to apply the revised version in a cohort of preschool age children, and to verify the reliability of the revised version in a cohort of preschool children with genetic syndromes associated with hypermobility., Study Design: The revised Beighton score was applied in a population of preschool children to evaluate joint hypermobility in 5 parts of the body, bilaterally (passive dorsiflexion of the fifth finger; passive hyperextension of the elbow; passive hyperextension of the knee; passive apposition of the thumb to the flexor side of the forearm; passive dorsiflexion of the ankle joint). The frequency distribution of the total scores was calculated with a range between 0 and 10., Results: A total of 284 healthy preschool children (146 boys and 138 girls) and 26 preschool children with genetic disorders (15 boys and 11 girls) were assessed. Mean age was 33.6 ± 12.7 months. A score ≤4 was found in more than 90% of the whole cohort; therefore, a cut-off score >4 was used to identify hypermobility. Twenty-two of the 284 (7%) healthy children and 23 of the 26 children (89%) with genetic syndromes associated with hypermobility had a score >4. The joints reporting a greater incidence of hypermobility were "apposition of the thumb to the forearm" and "passive dorsiflexion of the ankle," in 34% and 22% respectively. No differences related to sex or age were observed., Conclusions: The revised version of the Beighton score can be used to define generalized hypermobility for children up to 5 years of age and to assess and follow-up longitudinally patients with isolated hypermobility or those in whom the laxity is associated with other clinical features., (Copyright © 2016 Elsevier Inc. All rights reserved.)