title: Rapid progression of hip subluxation in cerebral palsy after selective posterior rhizotomy.
abstract: Rapid progression of hip subluxation was noted in the year after selective dorsal rhizotomy in seven hips (six patients). The hips that subluxed progressed from a lateral extrusion index averaging 25% preoperatively as compared with 50% after rhizotomy. Although preexistent hip dysplasia was a predisposing factor, hips with an intermediate degree of preoperative lateral extrusion (12-25%) had variable results. Ongoing and more frequent evaluation of hip stability is necessary after dorsal rhizotomy.
authors.affiliation: Division of Orthopaedic Surgery, University of North Carolina, Chapel Hill 27599.
authors.forename: W B
authors.initials: WB
authors.lastname: Greene
authors.forename: F R
authors.initials: FR
authors.lastname: Dietz
authors.forename: M J
authors.initials: MJ
authors.lastname: Goldberg
authors.forename: R H
authors.initials: RH
authors.lastname: Gross
authors.forename: F
authors.initials: F
authors.lastname: Miller
authors.forename: M D
authors.initials: MD
authors.lastname: Sussman
mesh_terms: D000293:Adolescent; D002547:Cerebral Palsy / Q000150:complications / Q000601:surgery*; D002675:Child, Preschool; D005260:Female; D005727:Ganglia, Spinal / Q000601:surgery*; D015171:Ganglionectomy / Q000009:adverse effects*; D006617:Hip Dislocation / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D015994:Incidence; D007223:Infant; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology*; D011859:Radiography