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Foot function in juvenile chronic arthritis

M Dhanendran, W C Hutton, L Klenerman

Rheumatology and Rehabilitation

|February 1, 1980

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Juvenile chronic arthritis alters foot function, reducing pressure under toes and metatarsals while increasing heel contact time in affected children. This study highlights key biomechanical changes in pediatric foot arthritis.

Area of Science:

Biomechanics
Pediatric Rheumatology
Podiatry

Background:

Juvenile chronic arthritis (JCA) can impact musculoskeletal development and function.
Assessing foot function is crucial for understanding the effects of JCA in children.
Previous research has explored various aspects of JCA, but detailed foot loading patterns require further investigation.

Purpose of the Study:

To measure and compare foot force distribution in children with and without juvenile chronic arthritis.
To identify specific alterations in foot function related to JCA.
To provide objective biomechanical data for assessing JCA's impact on pediatric foot mechanics.

Main Methods:

Utilized force distribution measurement techniques to analyze plantar pressure.

Related Experiment Videos

Compared data from eight patients diagnosed with juvenile chronic arthritis against 11 healthy children.

Measured peak forces and contact times across distinct functional areas of the foot.

Main Results:

Patients with JCA exhibited significantly reduced peak forces under the toes compared to controls.
A notable decrease in loading was observed under the two medial metatarsal heads in the patient group.
Children with JCA showed a significantly increased contact time for the heel during gait.

Conclusions:

Juvenile chronic arthritis leads to significant alterations in pediatric foot biomechanics.
Reduced loading under the forefoot and prolonged heel contact are characteristic findings in JCA.
These findings underscore the importance of objective force measurement in managing JCA's effects on foot function.