Knee and ankle range of motion and spasticity from childhood into adulthood: a longitudinal cohort study of 3,223 individuals with cerebral palsy
DOI:
https://doi.org/10.2340/17453674.2024.40606Keywords:
Cerebral Palsy, Foot and ankle, Knee, Range of motion, SpasticityAbstract
Background and purpose: Reduced range of motion (ROM) and spasticity are common secondary findings in cerebral palsy (CP) affecting gait, positioning, and everyday functioning. These impairments can change over time and lead to various needs for intervention. The aim of this study was to analyze the development path of the changes in hamstring length, knee extension, ankle dorsiflexion, and spasticity in hamstrings and gastrosoleus from childhood into adulthood in individuals with CP at the Gross Motor Function Classification System (GMFCS) levels I–V.
Methods: A longitudinal cohort study was undertaken of 61,800 measurements in 3,223 individuals with CP, born 1990–2017 and followed for an average of 8.7 years (range 0–26). The age at examination varied between 0 and 30 years. The GMFCS levels I–V, goniometric measurements, and the modified Ashworth scale (MAS) were used for repeated assessments of motor function, ROM, and spasticity.
Results: Throughout the follow-up period, knee extension and hamstring length exhibited a consistent decline across all individuals, with more pronounced decreases evident in those classified at GMFCS levels III–V. Ankle dorsiflexion demonstrated a gradual reduction from 15° to 5° (GMFCS I–IV) or 10° (GMFCS V). Spasticity levels in the hamstrings and gastrosoleus peaked between ages 5 and 7, showing a propensity to increase with higher GMFCS levels.
Conclusion: Passive ROM continues to decrease to 30 years of age, most pronouncedly for knee extension. Conversely, spasticity reached its peak at a younger age, with a more notable occurrence observed in the gastrosoleus compared with the hamstrings. Less than 50% of individuals had spasticity corresponding to MAS 2–4 at any age.
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Copyright (c) 2024 Erika Cloodt, Anna Lindgren, Elisabet Rodby-Bousquet
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