Related Experiment Video
Updated: Aug 19, 2026
Repeated Transcranial Magnetic Stimulation Combined with Action Observation Training in Children with Spastic Cerebral Palsy
Published on: August 9, 2024
Hip migration percentage in children with cerebral palsy treated with botulinum toxin type A
Frank S Pidcock1, David E Fish, Doug Johnson-Greene
1Department of Physical Medicine and Rehabilitation, Baltimore, MD, USA. pidcock@kennedykrieger.org
Objective:
To determine hip radiographic findings in children with cerebral palsy (CP) treated with botulinum toxin type A (BTX-A).
Design:
Retrospective chart review with correlation to radiographic findings.
Setting:
Academic center.
Participants:
Sixteen subjects with CP.
Intervention:
BTX-A treatment to adductor muscles.
Main Outcome Measure:
The Reimers hip migration percentage before and after BTX-A.
Results:
Thirty-two hips in 16 children with CP were treated. We examined the effect of initial migration percentage and initial migration percentage age on the change in migration percentage after BTX-A injection. A significant effect for initial migration percentage (<30% or >/=30%; F=19.05, P <.001) and a significant interaction between initial migration percentage and initial migration percentage age (F=7.5, P <.01) was noted. Initial migration percentage age (24 mo) was not significant (F=.95, P =.34). Patients who had an initial migration percentage of 30% or more and were less than 24 months old were more likely to have a decrease in migration percentage after BTX-A injection compared with patients who were older than 24 months and who had an initial migration percentage of 30% or more.
Conclusions:
Improvement in hip migration percentage after BTX-A injection is a function of age and the initial migration percentage. BTX-A injections to adductor muscles may be beneficial for some children with CP.
