Quantitative evaluations of ankle spasticity and stiffness in neurological disorders using manual spasticity evaluator

J Rehabil Res Dev, 2011 · DOI: · Published: January 1, 2011

Simple Explanation

This study introduces a manual spasticity evaluator (MSE) designed to quantitatively and conveniently assess spasticity and contracture, particularly in the ankle joint. The MSE measures ankle range of motion (ROM) and stiffness at a controlled low velocity, while also assessing joint resistance and Tardieu catch angle at higher velocities. The study found that the Tardieu catch angle is linearly related to velocity, suggesting that the velocity dependence of spasticity may also be position-dependent, highlighting the importance of controlling velocity during spasticity evaluations.

Study Duration

Not specified

Participants

12 children with CP, 5 nondisabled children, and 5 nondisabled adults

Evidence Level

Not specified

Key Findings

1
The Tardieu catch angle was linearly related to the velocity, indicating a position-dependent relationship.
2
Children with CP exhibited higher joint stiffness compared to nondisabled children.
3
The MSE system demonstrated excellent reproducibility in passive ROM and stiffness measurements.

Research Summary

The study introduces a manual spasticity evaluator (MSE) for quantitative and convenient assessment of spasticity and contracture, particularly in the ankle joint. The MSE was tested on children with cerebral palsy (CP) and nondisabled children, measuring ankle range of motion (ROM), stiffness, and Tardieu catch angle at various velocities. Results showed a linear relationship between the Tardieu catch angle and velocity, higher joint stiffness in children with CP, and excellent reproducibility of the MSE system.

Practical Implications

Improved Spasticity Assessment

The MSE offers a quantitative and convenient tool for assessing spasticity and contracture in clinical settings.

Targeted Interventions

More accurate measurements of spasticity can lead to more focused interventions, such as botulinum toxin, physical therapy, and surgeries.

Better Healthcare Services

The MSE has the potential to improve healthcare services for patients with neurological disorders through better diagnosis and treatment outcome evaluations.

Study Limitations

1
Small sample size.
2
Lack of statistically significant ROM difference between CP and nondisabled children.
3
Clonus or multiple catch events were not investigated.

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