Investigating Wrist Joint Position Sense and Hand Functions in Children With Polyarticular Juvenile Idiopathic Arthritis With Wrist Involvement.

Comparing the wrist joint position sense and hand functions between children with juvenile idiopathic arthritis (JIA) and healthy controls, and determining possible relationships between these parameters in children with JIA were the aims of this study. Twenty children with polyarticular JIA with wrist involvement (JIAWrist+), 20 children with other subtypes of JIA without wrist involvement (JIAWrist-), and 20 healthy controls were included. Wrist joint position sense was evaluated by measuring joint repositioning error. Hand functions were assessed by using the Purdue Pegboard test, hand grip strength, pinch strength, and Duruoz Hand Index. Joint position sense and hand functions were diminished in the JIAWrist+ group compared with healthy control group (P < .05). Few moderate relationships were detected between hand functions and wrist joint position sense (P < .05). Improving proprioceptive acuity by appropriate training methods may have a role in enhancing hand functions.