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Updated: Jun 26, 2026
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Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy
Published on: January 11, 2016
Hip displacement in cerebral palsy
Brendan Soo1, Jason J Howard, Roslyn N Boyd
1Department of Orthopaedic Surgery, Royal Children's Hospital, Flemington Road, Parkville, Victoria 3052, Australia.
The Journal of Bone and Joint Surgery. American Volume
|January 5, 2006
Summary
Hip displacement affects 35% of children with cerebral palsy, with risk increasing with lower gross motor function. This finding aids in assessing risk and planning care for affected children.
Area of Science:
- Pediatric Orthopedics
- Neurology
- Rehabilitation Medicine
Background:
- Hip displacement is a frequent complication in children with cerebral palsy.
- Variability in reported incidence and risk factors necessitates further investigation.
- Understanding incidence and risk factors can improve treatment strategies.
Purpose of the Study:
- To determine the incidence of hip displacement in a cohort of children with cerebral palsy.
- To identify risk factors associated with hip displacement in this population.
Main Methods:
- An inception cohort from the Victorian Cerebral Palsy Register (birth years 1990-1992) was analyzed.
- Gross Motor Function Classification System (GMFCS) levels were used to assess motor function.
- Hip displacement was defined as a migration percentage >30% on pelvic radiographs.
Main Results:
- The study included 323 children with a mean follow-up of over 11 years.
- Overall incidence of hip displacement was 35%, showing a direct correlation with GMFCS level.
- Incidence ranged from 0% in GMFCS level I to 90% in GMFCS level V.
Conclusions:
- Hip displacement is common in children with cerebral palsy, occurring in 35% of cases.
- The risk of hip displacement is directly proportional to the severity of gross motor dysfunction.
- Findings are crucial for risk assessment, parental counseling, and program design.
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