Upper Limb Function, Kinematic Analysis, and Dystonia Assessment in Children With Spastic Diplegic Cerebral Palsy and
Roser Pons1, Athanasios Vanezis2, Helen Skouteli2
11 First Department of Pediatrics, Agia Sofia Children's Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Insights
Children with spastic diplegia cerebral palsy often have upper limb dystonia. Kinematic analysis reveals functional impairments, including poor movement control and reduced accuracy, which correlate with disability levels.
Area of Science:
- Neurology
- Biomedical Engineering
- Pediatric Rehabilitation
Background:
- Spastic diplegia cerebral palsy (CP) is a common condition affecting motor function.
- Upper limb involvement, including dystonia, can significantly impact daily activities.
- Understanding the biomechanics of upper limb movement in CP is crucial for intervention.
Purpose of the Study:
- To assess upper limb function and kinematic parameters in children with spastic diplegia CP.
- To investigate the presence and impact of dystonia on upper limb movements.
- To explore the correlation between kinematic measures, clinical assessments, and functional abilities.
Main Methods:
- Kinematic analysis of upper limb movements in 7 children with spastic diplegia CP and 8 controls.
- Measurement of movement duration, velocity, curvature, dystonia index, accuracy, and stability.
- Clinical assessments including Gross Motor Function Classification System (GMFCS), Manual Ability Classification System (MACS), Modified Ashworth Scale (MAS), and Burke-Fahn-Marsden Dystonia Scale (BFMDS).
Main Results:
- Children with spastic diplegia CP exhibited higher dystonia index, increased curvature, lower velocities, and poorer target accuracy and stability compared to controls.
- All patients demonstrated clinical upper limb dystonia.
- Dystonia scores significantly correlated with MACS (r = 0.86) and the kinematic dystonia index (r = 0.82).
Conclusions:
- Children with spastic diplegia CP frequently present with upper limb dystonia.
- Kinematic analysis is a valuable tool for quantifying functional impairments associated with dystonia in CP.
- Findings highlight the functional relevance of upper limb dystonia and its impact on motor control.
Abstract:
Assessment of upper limb function, kinematic analysis, and dystonia in patients with spastic diplegia cerebral palsy and periventricular leukomalacia. Seven children with spastic diplegia cerebral palsy and 8 controls underwent upper limb kinematics. Movement duration, average and maximum linear velocity, index of curvature, index of dystonia, and target accuracy and stability were analyzed. In the patients with spastic diplegia, Gross Motor Function and Manual Ability Classification Systems were determined, and spasticity and dystonia were rated using the Modified Ashworth and the Burke-Fahn-Marsden Dystonia scales respectively. Children with spastic diplegia demonstrated a tendency toward higher index of dystonia reflecting overflow, higher index of curvature, lower velocities, and poor target accuracy and stability. All patients showed clinical evidence of dystonia in the upper limbs. Dystonia scores correlated with the Manual Ability Classification System (r = 0.86, P = .01) and with the index of dystonia (r = 0.82, P = .02). Children with spastic diplegia cerebral palsy present dystonia in the upper limbs. This is functionally relevant and can be measured with kinematic analysis.
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