{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,17]],"date-time":"2026-05-17T04:14:08Z","timestamp":1778991248171,"version":"3.51.4"},"reference-count":23,"publisher":"American Academy of Pediatrics (AAP)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1997,2,1]]},"abstract":"<jats:p>Objective.\u2003To determine clinical characteristics in children with osteogenesis imperfecta (OI) regarding impairment (range of joint motion and muscle strength) and disability (functional skills) in relation to the different types of the disease, and to study the correlation between characteristics of impairment and disability.<\/jats:p><jats:p>Methods.\u2003In a cross-sectional study 54 children with OI (OI type I: 24; OI type III: 15; OI type IV: 15), the range of joint motion, muscle strength, and functional ability were measured in a standardized way and analyzed statistically.<\/jats:p><jats:p>Results.\u2003The range of joint motion in almost all joints differed significantly with respect to the different disease types. In OI type I patients, generalized hypermobility of the joints was present, without decrease in joint motion. In OI type III the extremities were severely maligned, especially the lower limbs. In type IV the upper and lower extremities were equally maligned. Muscle strength differed significantly with respect to the different types of OI. In type I patients, muscle strength was normal except for the periarticular hip muscles. In type III, especially in the lower extremities, muscle strength was severely decreased, with a muscular imbalance around the hip joint. In type IV, muscle strength was mainly decreased in the proximal muscles of the upper and lower extremities. In children \u22647.5 years of age, significant differences existed among the different disease types in functional skills regarding mobility. No significant difference was observed in self-care and social function, although the most severely affected children showed a tendency to score better with social function. Older children differed significantly concerning mobility and self-care items. In children \u22647.5 years old, a correlation was sometimes observed between impairment and disability items, although in older children a moderate to good correlation was always present (r &amp;gt; .6).<\/jats:p><jats:p>Conclusion.\u2003In OI, severity-related profiles exist, within the different subtypes of the disease, regarding range of joint motion, muscle strength, and functional skills. In younger children, impairment parameters do not sufficiently correlate for disability. Rehabilitation strategies in younger children should therefore focus on improvement of functional skills and not only on impairment parameters. osteogenesis imperfecta, pediatrics, muscle strength, range of joint motion, impairment, disability, functional outcome.<\/jats:p>","DOI":"10.1542\/peds.99.2.e3","type":"journal-article","created":{"date-parts":[[2004,8,13]],"date-time":"2004-08-13T23:40:17Z","timestamp":1092440417000},"page":"e3-e3","source":"Crossref","is-referenced-by-count":39,"title":["Osteogenesis Imperfecta in Childhood: Impairment and Disability"],"prefix":"10.1542","volume":"99","author":[{"given":"R. H. 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M.","family":"Helders","sequence":"additional","affiliation":[{"name":"From the Department of Pediatric Physical Therapy, University Hospital for Children and Youth, \u201cWilhelmina Children\u2019s Hospital\u201d;"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"417","published-online":{"date-parts":[[1997,2,1]]},"reference":[{"key":"2021121006472478400_B1","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1146\/annurev.me.43.020192.001413","article-title":"Osteogenesis imperfecta.","volume":"43","author":"Byers","year":"1992","journal-title":"Annu Rev Med."},{"key":"2021121006472478400_B2","doi-asserted-by":"crossref","first-page":"36","DOI":"10.1007\/BF00297295","article-title":"Osteogenesis imperfecta: a clinical study of the first ten years of life.","volume":"50","author":"Vetter","year":"1992","journal-title":"Calcif Tissue Int."},{"key":"2021121006472478400_B3","doi-asserted-by":"crossref","first-page":"101","DOI":"10.1136\/jmg.16.2.101","article-title":"Genetic heterogeneity in osteogenesis imperfecta.","volume":"16","author":"Sillence","year":"1979","journal-title":"J Med Genet."},{"key":"2021121006472478400_B4","doi-asserted-by":"crossref","first-page":"427","DOI":"10.1007\/BF02011910","article-title":"Craniocervical abnormalities in osteogenesis imperfecta: genetic and molecular correlation.","volume":"24","author":"Sillence","year":"1994","journal-title":"Pediatr Radiol."},{"key":"2021121006472478400_B5","first-page":"233","article-title":"Osteogenesis imperfecta: from phenotype to genotype and back again.","volume":"75","author":"Smith","year":"1994","journal-title":"Int J Exp Pathol."},{"key":"2021121006472478400_B6"},{"key":"2021121006472478400_B7"},{"key":"2021121006472478400_B8","doi-asserted-by":"crossref","first-page":"265","DOI":"10.1002\/ajmg.1320450224","article-title":"Comprehensive rehabilitation of the child with osteogenesis imperfecta.","volume":"45","author":"Binder","year":"1993","journal-title":"Am J Med Genet."},{"key":"2021121006472478400_B9","doi-asserted-by":"crossref","first-page":"254","DOI":"10.1097\/00003086-199002000-00043","article-title":"Rehabilitation of children and infants with osteogenesis imperfecta. 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