HIPHip pain is more frequent in severe hip displacement a population-based study of 77 children with cerebral palsyRamstad, Kjersti; Terjesen, TerjeAuthor Information Departments of aClinical Neurosciences for Children bOrthopaedic Surgery, Oslo University Hospital, Rikshospitalet and University of Oslo, Norway Correspondence to Kjersti Ramstad, MD PhD, Oslo Universitetssykehus HF, Rikshospitalet, Barneklinikken, PO Box 4950, Nydalen, N-0424 Oslo, Norway Fax: +47 23 07 02 34; e-mail: email@example.com Journal of Pediatric Orthopaedics B: May 2016 - Volume 25 - Issue 3 - p 217-221 doi: 10.1097/BPB.0000000000000282 Buy Metrics Abstract The aim of this study was to assess whether hip pain was associated with radiographic hip displacement (migration percentage, MP) in a population-based cohort of children with cerebral palsy. Seventy-seven children, mean age 9.5 (SD 1.6) years and Gross Motor Function Classification System level III–V, were assessed. Caregivers responded to the Child Health Questionnaire pain questions and located recurrent pain on a body map. Hip pain was reported in 22 children (29%) and 27 hips (18%). Hip pain was significantly more frequent in hips with MP more than or equal to 50%, in children with spastic quadriplegia, and in those with Gross Motor Function Classification System level V. We conclude that severe hip displacement with MP more than or equal to 50% was associated with hip pain, whereas slight or moderate subluxation did not influence the occurrence of such pain. Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.