Evaluation of femoral head vascularization in slipped capital femoral epiphysis before and after cannulated screw fixation with use of contrast-enhanced MRI: initial results.

European Radiology
G StaatzR W Günther

Abstract

In this study we used contrast-enhanced magnetic resonance imaging (MRI) to evaluate the vascularization of the femoral head in children with slipped capital femoral epiphysis (SCFE) before and after cannulated screw fixation. Eleven consecutive children with SCFE, seven boys and four girls, aged 10-15 years were included in the study. There were no preslips; four children had acute, three acute-on-chronic, and four chronic SCFE. The MRI examinations were performed in a 1.5 Tesla MR scanner with use of a coronal STIR sequence, a coronal contrast-enhanced T1-weighted spin-echo sequence, and a sagittal three-dimensional gradient-echo sequence. Morphology, signal intensities, and contrast-enhancement of the femoral head were assessed by two radiologists in consensus. Morphologic distortion of the physis, bone marrow edema within the metaphysis and epiphysis, and joint effusion were the preoperative MRI findings of SCFE in each child. In nine children, the vascularization of the femoral head before and after surgery was normal. In one child, a preoperative avascular zone in the superolateral aspect of the epiphysis revascularized completely after surgery. One child with severe SCFE developed avascular necrosis of the femoral head a...Continue Reading

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Citations

May 19, 2009·Pediatric Radiology·Ricardo Restrepo, Martin H Reed
Mar 27, 2013·Pediatric Radiology·Delma Y JarrettPaul K Kleinman
Jun 16, 2009·Magnetic Resonance Imaging Clinics of North America·Thomas Ray S SanchezLeonard E Swischuk
Sep 11, 2016·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·Takuya OtaniYasuhiko Kawaguchi
Sep 25, 2008·Journal of Pediatric Orthopedics·Jose A Herrera-SotoKelly L Vander Have
Apr 11, 2019·Journal of Pediatric Orthopedics·Benjamin J ShoreYi-Meng Yen
Oct 12, 2017·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Jie C NguyenJerry R Dwek
Nov 5, 2014·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Bernd BittersohlRüdiger Krauspe

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