Chondropathy- Don’t Forget the grading

Congress:

ESSR 2017

Poster Number:

P-0316

Type:

Educational Poster

Keywords:

Musculoskeletal bone, Bones, MR, Diagnostic procedure, Education and training, Inflammation

Authors:

C. A. B. Oliveira¹, G. Rio², F. M. F. Gomes³, V. Mendes¹; ¹Braga/PT, ²Gondomar/PT, ³Vila Nova de Sande/PT

DOI:

10.1594/essr2017/P-0316

DOI-Link:

https://dx.doi.org/10.1594/essr2017/P-0316

Fig. 1: Grade III chondropathy Bone surface exposure Subchondral bone changes Geodes

Fig. 2: Chondropaty Grade I Minimal degenerative changes

Fig. 3: Chondropaty grade II Subchondral bone, cortical irregularity

Fig. 4: Chondropaty grade III Marked subchodral edema Cortical Denudation and...

Learning objectives

To review the most common literature and state of art regarding cartilage of the knee and search our database for representative case.

Background

Chondromalacia can be divided into 4 grades by MRI, typically using fat saturated proton density sequences. This grading system is the modified Outerbridge grading system, which was devised for arthroscopy initially for assessment of chondromalacia patella, but then modified and extended for all chondral surfaces 1.

Imaging findings OR Procedure Details

Normal cartilage Hyaline cartilage is a type of fine connective tissue composed of a complex mesh of collagenous fibers, water and proteoglycans (1). MRI with high spatial resolution and good soft-tissue contrast shows a three-layer pattern in the hyaline cartilage: -Surface layer with low-intensity signal -Intermediate layer with high-intensity signal -Deep layer with low-intensity signal and a “palisade” tran- sition into the intermediate zone. This three-layer appearance is more evident in cartilage of greater thickness, such as the patellar and femoral trochlear cartilage (2). Chondral...

Conclusion

During knee MRI studies, sequences cartilage appropriate must be routine in the protocol and the radiologist should be aware of the image findings.

References

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