Bilateral reaching deficits after unilateral perinatal ischemic stroke: a population-based case-control study

Area of Science:

• Neurology
• Robotics
• Pediatric Medicine

Background:

• Detailed kinematics of motor impairment in hemiparetic cerebral palsy (CP) are not well understood.
• Children with hemiparetic CP often present with both contralesional and ipsilesional limb dysfunction.

Purpose of the Study:

• To quantify upper limb reaching kinematics in children with perinatal stroke using a robotic exoskeleton.
• To assess the correlation between kinematic reaching parameters and clinical motor assessments.

Main Methods:

• A prospective, case-control study involving children with perinatal ischemic stroke and healthy controls.
• Participants performed a visually guided reaching task using the KINARM robotic exoskeleton.
• Ten kinematic parameters quantified motor function, compared to clinical assessments and stroke type.

Main Results:

• Children with perinatal stroke exhibited significant contralesional motor impairments in reaching tasks.
• Ipsilesional limb impairments were also observed, particularly in the arterial stroke group.
• The arterial stroke group demonstrated worse performance on both contralesional and ipsilesional parameters compared to the venous group.

Conclusions:

• Robotic assessment effectively quantifies upper limb dysfunction in children with perinatal stroke.
• The ipsilesional limb's motor abnormalities suggest it as a potential target for therapeutic interventions in hemiparetic CP.