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MRI differentiates femoral condylar ossification evolution from osteochondritis dissecans: a new sign

(2011) EUROPEAN RADIOLOGY. 21(6). p.1170-1179
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Abstract
To determine if MRI (magnetic resonance imaging) of the femoral condyles in children can differentiate variations in ossification from osteochondritis dissecans (OCD). MRI studies of the knee of 315 patients demonstrated ossification defects of the femoral condyles involving the subchondral bone plate. MRI features categorized the defects as ossification variability (N = 150) or OCD (N = 165). Both groups were compared for age, residual physeal cartilage, site, configuration, 'lesion angle' and associated findings. (a) Ossification variability did not occur in girls > 10 year. and boys > 13 year., OCD did not occur in children younger than 8 year. (b) Ossification variability was not seen in patients with 10% or less residual physeal cartilage, OCD was rare in patients with 30% or greater residual physeal cartilage. (c) Ossification variability was located in the posterior third of the femoral condyle, OCD occurred most commonly in the middle third. (d) Intracondylar extension was seen in OCD and not in ossification variability. (e) Perilesional oedema was very common with OCD and absent with ossification variability. (f) Lesion angle < 105A degrees was a feature of ossification variability. MRI may help differentiate variations in ossification of the femoral condyles from OCD.
Keywords
Paediatric, Osteochondritis dissecans, Knee, MRI, KNEE, CHILDREN, JUVENILE, Ossification variability

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MLA
Jans, Lennart, et al. “MRI Differentiates Femoral Condylar Ossification Evolution from Osteochondritis Dissecans: A New Sign.” EUROPEAN RADIOLOGY, vol. 21, no. 6, 2011, pp. 1170–79, doi:10.1007/s00330-011-2058-x.
APA
Jans, L., Jaremko, J. L., Ditchfield, M., Huysse, W., & Verstraete, K. (2011). MRI differentiates femoral condylar ossification evolution from osteochondritis dissecans: a new sign. EUROPEAN RADIOLOGY, 21(6), 1170–1179. https://doi.org/10.1007/s00330-011-2058-x
Chicago author-date
Jans, Lennart, Jacob L Jaremko, Michael Ditchfield, Wouter Huysse, and Koenraad Verstraete. 2011. “MRI Differentiates Femoral Condylar Ossification Evolution from Osteochondritis Dissecans: A New Sign.” EUROPEAN RADIOLOGY 21 (6): 1170–79. https://doi.org/10.1007/s00330-011-2058-x.
Chicago author-date (all authors)
Jans, Lennart, Jacob L Jaremko, Michael Ditchfield, Wouter Huysse, and Koenraad Verstraete. 2011. “MRI Differentiates Femoral Condylar Ossification Evolution from Osteochondritis Dissecans: A New Sign.” EUROPEAN RADIOLOGY 21 (6): 1170–1179. doi:10.1007/s00330-011-2058-x.
Vancouver
1.
Jans L, Jaremko JL, Ditchfield M, Huysse W, Verstraete K. MRI differentiates femoral condylar ossification evolution from osteochondritis dissecans: a new sign. EUROPEAN RADIOLOGY. 2011;21(6):1170–9.
IEEE
[1]
L. Jans, J. L. Jaremko, M. Ditchfield, W. Huysse, and K. Verstraete, “MRI differentiates femoral condylar ossification evolution from osteochondritis dissecans: a new sign,” EUROPEAN RADIOLOGY, vol. 21, no. 6, pp. 1170–1179, 2011.
@article{1238971,
  abstract     = {{To determine if MRI (magnetic resonance imaging) of the femoral condyles in children can differentiate variations in ossification from osteochondritis dissecans (OCD). MRI studies of the knee of 315 patients demonstrated ossification defects of the femoral condyles involving the subchondral bone plate. MRI features categorized the defects as ossification variability (N = 150) or OCD (N = 165). Both groups were compared for age, residual physeal cartilage, site, configuration, 'lesion angle' and associated findings. (a) Ossification variability did not occur in girls > 10 year. and boys > 13 year., OCD did not occur in children younger than 8 year. (b) Ossification variability was not seen in patients with 10% or less residual physeal cartilage, OCD was rare in patients with 30% or greater residual physeal cartilage. (c) Ossification variability was located in the posterior third of the femoral condyle, OCD occurred most commonly in the middle third. (d) Intracondylar extension was seen in OCD and not in ossification variability. (e) Perilesional oedema was very common with OCD and absent with ossification variability. (f) Lesion angle < 105A degrees was a feature of ossification variability. MRI may help differentiate variations in ossification of the femoral condyles from OCD.}},
  author       = {{Jans, Lennart and Jaremko, Jacob L and Ditchfield, Michael and Huysse, Wouter and Verstraete, Koenraad}},
  issn         = {{0938-7994}},
  journal      = {{EUROPEAN RADIOLOGY}},
  keywords     = {{Paediatric,Osteochondritis dissecans,Knee,MRI,KNEE,CHILDREN,JUVENILE,Ossification variability}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{1170--1179}},
  title        = {{MRI differentiates femoral condylar ossification evolution from osteochondritis dissecans: a new sign}},
  url          = {{http://doi.org/10.1007/s00330-011-2058-x}},
  volume       = {{21}},
  year         = {{2011}},
}

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