The Femoral Head-Shaft Angle Is Not a Predictor of Hip Displacement in Children Under 5 Years With Cerebral Palsy: A Population-based Study of Children at GMFCS Levels III-V.

Journal of Pediatric Orthopedics
Terje Terjesen, Joachim Horn

Abstract

The aim of this study was to evaluate whether the femoral head-shaft angle (HSA) is a predictor of hip displacement in children with cerebral palsy (CP). The patients were recruited from a population-based hip surveillance program. Inclusion criteria were age under 5 years, bilateral CP, Gross Motor Function Classification System (GMFCS) levels III-V, and migration percentage (MP) of both hips <40% at the primary radiograph. With these criteria, 101 children (61 boys) were included. GMFCS was level III in 26 patients, level IV in 23, and level V in 52. An anteroposterior radiograph of the pelvis was taken at diagnosis and at the last follow-up. Only the worst hip of each patient (the hip with the largest MP) was used for the analyses. The mean age at the primary radiograph was 2.4 years (range, 0.8 to 4.9 y). The mean primary HSA was 171.0 degrees (range, 152 to 190 degrees). The mean follow-up time was 4.3 years (range, 0.9 to 11.8 y). The mean MP at the primary radiograph was 17.5% (range, 0% to 39%) and at the last follow-up 41.9% (range, 0% to 100%). At that point, MP was <40% in 54 hips and ≥40% in 47 hips. There was no significant difference in primary HSA between patients with final MP<40% and those with final MP≥40% (17...Continue Reading

References

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Aug 29, 2009·Journal of Paediatrics and Child Health·Annette ConnellyJanene Oates
Sep 25, 2010·Journal of Pediatric Orthopedics·Kyoung Min LeeMoon Seok Park
Aug 14, 2012·Developmental Medicine and Child Neurology·Terje Terjesen
Nov 28, 2014·Acta Orthopaedica·Maria HermansonPhilippe Wagner
Apr 30, 2015·Journal of Children's Orthopaedics·J P J van der ListJ A van der Sluijs
Oct 14, 2016·Journal of Children's Orthopaedics·Sanjay ChouguleYael Gelfer
Sep 15, 2017·Journal of Children's Orthopaedics·M HermansonE Rodby-Bousquet

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