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Association between quantitative MRI and ICRS arthroscopic grading of articular cartilage

Casula, Victor; Hirvasniemi, Jukka; Lehenkari, Petri; Ojala, Risto; Haapea, Marianne; Saarakkala, Simo; Lammentausta, Eveliina; Nieminen, Miika T. (2014-09-11)

 
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URL:
https://doi.org/10.1007/s00167-014-3286-9

Casula, Victor
Hirvasniemi, Jukka
Lehenkari, Petri
Ojala, Risto
Haapea, Marianne
Saarakkala, Simo
Lammentausta, Eveliina
Nieminen, Miika T.
Springer Nature
11.09.2014

Casula, V., Hirvasniemi, J., Lehenkari, P. et al. Knee Surg Sports Traumatol Arthrosc (2016) 24: 2046. https://doi.org/10.1007/s00167-014-3286-9

https://rightsstatements.org/vocab/InC/1.0/
© European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2014. This is a post-peer-review, pre-copyedit version of an article published in Knee Surgery, Sports Traumatology, Arthroscopy. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00167-014-3286-9
https://rightsstatements.org/vocab/InC/1.0/
doi:https://doi.org/10.1007/s00167-014-3286-9
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https://urn.fi/URN:NBN:fi-fe2017121155679
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Abstract

Purpose: To investigate the association of quantitative magnetic resonance imaging (qMRI) parameters with arthroscopic grading of cartilage degeneration. Arthroscopy of the knee is considered to be the gold standard of osteoarthritis diagnostics; however, it is operator-dependent and limited to the evaluation of the articular surface. qMRI provides information on the quality of articular cartilage and its changes even at early stages of a disease.

Methods: qMRI techniques included T₁ relaxation time, T₂ relaxation time, and delayed gadolinium-enhanced MRI of cartilage mapping at 3 T in ten patients. Due to a lack of generally accepted semiquantitative scoring systems for evaluating severity of cartilage degeneration during arthroscopy, the International Cartilage Repair Society (ICRS) classification system was used to grade the severity of cartilage lesions. qMRI parameters were statistically compared to arthroscopic grading conducted with the ICRS classification system.

Results: qMRI parameters were not linearly related to arthroscopic grading. Spearman’s correlation coefficients between qMRI and arthroscopic grading were not significant. The relative differences in qMRI parameters of superficial and deep cartilage varied with degeneration, suggesting different macromolecular alterations in different cartilage zones.

Conclusions: Results suggest that loss of cartilage and the quality of remaining tissue in the lesion site may not be directly associated with each other. The severity of cartilage degeneration may not be revealed solely by diagnostic arthroscopy, and thus, qMRI can have a role in the investigation of cartilage degeneration.

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