The Evaluation of Effects of Botulinum Toxin Injection on Lower Extremity Somatosensory Impairment and Postural Control in Children With Hemiplegic Cerebral Palsy
The Evaluation of Effects of Botulinum Toxin Injection on Lower Extremity Somatosensory Impairment and Postural Control in Children With Hemiplegic Cerebral Palsy
In this study, the investigators aimed to investigate the effects of botulinum neurotoxin type A (BoNT-A) injection applied to the ankle plantar flexor muscles on lower extremity sensation and quantitative balance parameters in children with spastic hemiplegic cerebral palsy who are ambulatory without an assistive device in daily life.
Cerebral palsy (CP) refers to a group of movement and posture disorders that limit activity and participation, that are attributed to non-progressive disturbances in the developing fetus or infant brain. One of the main clinical findings of CP is postural control disorder. Many concomitant impairments such as joint range of motion limitations, spasticity, contractures, sensory deficits and loss of selective motor control contribute to postural control disorder.
One of the most common causes of motor dysfunction in children with CP is the presence of spasticity. Spasticity in the ankle plantar flexor muscles and weakness in the dorsiflexor muscles are the main factors that cause gait disturbance. Thus, impairments in gait function cause limitation of postural stability. Although there are many methods in spasticity management, BoNT-A injections have been used effectively and safely for many years, especially in reducing ankle plantar flexor spasticity. There are limited number of studies in the literature investigating the effect of BoNT-A injection on postural control in children with spastic CP, and only one study included children with spastic hemiplegic (unilateral) CP and it was clearly highlighted that new studies are needed in this area.
The reclassification of CP acknowledges the contribution of impaired sensation in motor performance. Although it has been shown that somatosensory deficits in the lower extremities of children with spastic CP can negatively affect gait and balance, the effect of spasticity in the ankle has not been evaluated.
In this study, the investigators aimed to investigate the effects of BoNT injection applied to the ankle plantar flexor muscles on lower extremity sensation and quantitative balance parameters in children with spastic hemiplegic CP who are ambulatory without an assistive device in daily life.
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