Overuse of hyaline cartilage and imaging

European Journal of Radiology
Siegfried Trattnig

Abstract

Traumatic injury to joints may involve articular cartilage alone or result in osteochondral fractures which may impair mechanical properties of articular cartilage. Injuries of articular cartilage alone with visible tissue disruption and osteochondral fractures are now visualized by MRI which is the only modality for direct non-invasive visualization of articular cartilage. Three-dimensional T1-weighted gradient-echo sequences with fat-suppression provide high accuracy in the detection of cartilage surface defects. Fast spin echo imaging with heavy T2-weighting demonstrates cartilage defects in the presence of joint effusion accurately too, but minimal slice thickness in 2D-imaging is limited. For correct staging of osteochondral fractures, which determines further therapy, intraarticular administration of contrast media may be necessary. Repetitive direct blunt trauma or high-energy joint loading can cause cartilage damage without visible tissue disruption. To demonstrate this early stage of chondral injury special techniques and agents are necessary. These include diffusion weighted imaging, measurements of magnetization transfer as a function of collagen concentration, proton density mapping to plot the distribution of water...Continue Reading

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Citations

Sep 20, 2005·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Stefan MarlovitsSiegfried Trattnig
Oct 21, 2000·Investigative Radiology·H ImhofF Kainberger
Feb 4, 2006·American Journal of Veterinary Research·Katharina J JanachWolfgang W F Künzel
Mar 14, 2013·Journal of Anatomy·Diogo Correa MaldonadoRomeu Rodrigues de Souza
Sep 29, 2005·European Journal of Radiology·Stefan MarlovitsVilmos Vécsei
Oct 21, 2000·Investigative Radiology·V Mlynárik, S Trattnig

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