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Patterns of postural deformity in non-ambulant people with cerebral palsy: what is the relationship between the direction of scoliosis, direction of pelvic obliquity, direction of windswept hip deformity and side of hip dislocation?

AbstractOBJECTIVE: To investigate: (a) associations between the direction of scoliosis, direction of pelvic obliquity, direction of windswept deformity and side of hip subluxation/ dislocation in non-ambulant people with cerebral palsy; and (b) the lateral distribution of these postural asymmetries. DESIGN: Cross-sectional observational study. SETTING: Posture management services in three centres in the UK. SUBJECTS: Non-ambulant people at level five on the gross motor function classification system for cerebral palsy. MAIN MEASURES: Direction of pelvic obliquity and lateral spinal curvature determined from physical examination, direction of windswept hip deformity derived from range of hip abduction/adduction, and presence/side of unilateral hip subluxation defined by hip migration percentage. RESULTS: A total of 747 participants were included in the study, aged 6-80 years (median 18 years 10 months). Associations between the direction of scoliosis and direction of pelvic obliquity, and between the direction of windswept hip deformity and side hip subluxation/dislocation were confirmed. A significant association was also seen between the direction of scoliosis and the direction of the windswept hip deformity (P<0.001) such that the convexity of the lateral spinal curve was more likely to be opposite to the direction of windsweeping. Furthermore, significantly more windswept deformities to the right (P=0.007), hips subluxed on the left (P=0.002) and lateral lumbar/lower thoracic spinal curves convex to the left (P=0.03) were observed. CONCLUSIONS: The individual asymmetrical postural deformities are not unrelated in terms of direction and not equally distributed to the left/right. A pattern of postural deformity was observed.
AuthorsDavid Porter, Shona Michael, Craig Kirkwood (Affiliation: School of Health & Social Care, Oxford Brookes University, Oxford, UK. dporter at brookes.ac.uk)
JournalClinical rehabilitation (Clin Rehabil) Vol. 21 Issue 12 Pg. 1087-96 (Dec 2007) ISSN: 0269-2155 England
PMID18042604 (Publication Type: Journal Article, Multicenter Study, Research Support, Non-U.S. Gov't)
Topics
  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Cerebral Palsy (complications, physiopathology)
  • Child
  • Cohort Studies
  • Female
  • Hemiplegia (physiopathology)
  • Hip Dislocation (etiology, physiopathology)
  • Hip Joint (physiopathology)
  • Humans
  • Male
  • Middle Aged
  • Pelvis (physiopathology)
  • Posture
  • Scoliosis (etiology, physiopathology)