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J Korean Acad Rehabil Med. 2009 Feb;33(1):64-71. Korean. Original Article.
Park ES , Rha DW , Kim HB , Kim MJ .
Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Korea.

OBJECTIVE: To investigate the prevalence of gait abnormalities of each joint of lower legs in children with spastic cerebral palsy (CP) and to find out the influences of subtype of CP, age, previous surgery and motor function on the gait abnormalities. METHOD: The gait analysis and foot scan from 320 children with CP were reviewed. Types of gait abnormalities were classified into 5 types for hip joint, 4 types for knee joint and 8 types for foot and ankle joint. The prevalence of gait abnormalities was assessed and the influence of subtype of CP, age, previous surgery and GMFCS (gross motor function classification system) level were also investigated. RESULTS: In foot and ankle joint, intoeing (63.8%) was the most common in all CP. In knee joint, jumping knee (32.8%) was the most common in diplegic and hemiplegic CP but crouch (47.6%) was the most common in quadriplegic CP. The likelihood of having planovalgus and crouch significantly increased with age and pes calcaneus increased after orthopaedic surgery. The children with lower functional level on GMFCS tended to show stiff and recurvatum knee pattern. CONCLUSION: Predominent gait abnormalities in each joint were assessed. Age, previous surgery, motor function and subtype of children with CP had a significant effect on the prevalence of gait abnormalities in each joint.

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