Validity and Reliability of the Turkish Version of Hand-Use-at-Home Questionnaire in Children With Neonatal Brachial Plexus Palsy or Unilateral Cerebral Palsy.

Cerebral Palsy (CP) is defined as a permanent but non-progressive disorder group that affects the developing fetal or infantile brain, leading to impairment in movement and posture, thereby limiting physical activity and participation. The prevalence of CP in society is around 0.21%. In a study conducted in Turkey, this ratio of 4.4 / 1000 live births has been reported. Motor disorders in CP often are accompanied by sensory, perceptual, cognitive, communicative and behavioral problems and secondary musculoskeletal problems.

Obstetric brachial plexus (OBP) injury is a common peripheral nerve injury in children. Its incidence is reported between 0.42 and 5.1 per 1000 live births. As the primary mechanism of injury, it is accepted that traction or compression of all or part of the brachial plexus.

In these patients, weakness in the upper extremity, long-term contractures, and difficulties in the use of the extremities occurs due to the damage of nerves. In both diseases, patients have difficulty in bimanual activities.

Many treatment methods focus on increasing the use of upper extremities of patients and ensuring their independence in daily life activities. There are many methods for evaluating the hand use performance of patients and the effectiveness of different treatment methods. However, these clinical evaluation methods often do not reflect the patient's performance at home, at school, in their daily living environments.

The "Hand Use at Home (HUH)" questionnaire, which was created to be evaluated by parents, was developed in 2017 for measuring and evaluating the spontaneous use time of unilateral paretic children aged 3-10 in the affected hand and arm daily life activities.