Somatosensory discrimination impairment in children with hemiplegic cerebral palsy as measured by the sense_assess© kidsBelinda McLean, Susan Taylor, Jane Valentine, Leeanne Carey, Ashleigh Thornton, Catherine ElliottPMID: 33738799DOI: 10.1111/1440-1630.12729AbstractIntroduction: To characterise somatosensory discrimination impairment of the upper-limb across domains of tactile discrimination, limb position sense and haptic object recognition using the sense_assess© kids and examine associations with upper-limb motor performance in children with hemiplegic cerebral palsy (CP).Methods: The sense_assess© kids was administered at one timepoint to 28 children, aged 6-15.5 years (M = 10.1, SD = 2.4), with hemiplegic CP (right hemiplegia n = 15) and Manual Ability Classification System Levels I (n = 11) and II (n = 17). Unimanual motor performance was quantified using the Box and Block Test.Results: Tactile discrimination was impaired in 18, limb position sense in 20, and haptic object recognition was impaired in 21 of 28 children. Over 80% (23/28) of children had impaired somatosensory discrimination in one or more domains. Low to moderate correlations were observed between each measure of somatosensory discrimination and motor performance. Manual ability classification was associated with limb position sense and haptic object recognition. A moderate inverse correlation (r = -.57, p < .01) exists between the number of somatosensory domains impaired and motor performance.Conclusion: The frequency of somatosensory impairment in the upper limb of children in our sample was high and associated with manual ability, suggesting a need for routine assessment of somatosensation in this population.Keywords: cerebral palsy; proprioception; stereognosis; touch; touch perception; upper extremity.

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