Bone and joint complications and reduced mobility are associated with pain in children with cerebral palsy

Area of Science:

• Orthopedics
• Pediatrics
• Rehabilitation Medicine

Background:

• Cerebral palsy (CP) is a complex neurological disorder affecting movement and posture.
• Pain in the lower extremities and back is a common but often understudied issue in children with CP.
• Understanding factors associated with pain is crucial for improving quality of life.

Purpose of the Study:

• To investigate the relationships between pain in the lower extremities and back, and spasticity, bone/joint complications, and mobility in children with CP.
• To identify key predictors of pain in this population.

Main Methods:

• Retrospective population-based registry study including 3256 children with CP (2.5-16 years).
• Spasticity, bone/joint complications (hip displacement, range of motion, windswept posture, scoliosis), and mobility were assessed.
• Pain was measured in hips, knees, feet, and back; data analyzed using structural equation modeling.

Main Results:

• Bone/joint complications showed the strongest association with lower extremity pain (standardized regression coefficient = 0.48).
• Reduced mobility was also significantly associated with lower extremity pain (standardized regression coefficient = -0.24).
• No significant pathways were found between spasticity and pain, or age and pain.

Conclusions:

• Bone/joint complications and reduced mobility are significant contributors to lower extremity pain in children with CP.
• The model explained 15% of the variance in pain, indicating other unmeasured factors are also involved.
• These findings highlight the importance of addressing musculoskeletal health and mobility to manage pain in children with CP.