• Marianne Arner, A-C Eliasson, S Nicklasson, K Sommerstein, and G Hägglund.
• Department of Hand Surgery, Stockholm South Hospital, Stockholm, Sweden. marianne.arner@sodersjukhuset.se
• J Hand Surg Am. 2008 Oct 1; 33 (8): 1337-47.

PurposeTo describe aspects of hand function in a total population of children with cerebral palsy (CP).MethodsUpper extremity data were collected for 367 children who were born between 1992 and 2001 and were registered in a population-based health care program for children with CP. Hand function was classified according to the Manual Ability Classification System (MACS), the House functional classification, and the Zancolli classification. The type of spastic thumb-in-palm deformity was evaluated according to House.ResultsIn the total population of children with CP aged 4 to 14 years, 60% had more than minor problems with hand function (>MACS I). Independence in age-relevant, daily manual activities (MACS I-II) was noted in 87% of children with spastic unilateral CP and in 63% of children with spastic bilateral CP, but in only 20% of children with dyskinetic CP. According to the House functional classification, both hands were spontaneously and independently used in 55% of children (House 7-8), whereas 5% did not use either of their hands (House 0). Minor increase of flexor muscle tone (Zancolli level 1) was found in 69% of all children. Only 2% were in level 3 in both hands. Spastic thumb-in-palm deformity in 1 hand was found in 25% and in both hands in another 15%.ConclusionsLimitations in hand function are common in all types of CP, but characteristics of the disability vary considerably between different CP subtypes. The MACS classification is useful to evaluate how well children can handle objects in daily activities. The House functional classification describes grip function in each hand separately; the Zancolli classification of finger and wrist extension and the classification of thumb-in-palm deformity according to House give an estimate of dynamic spasticity. All these classifications were shown to be useful in a population-based health care program, but further studies of the psychometric properties are required.

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