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Article:


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Traumatology ← 



Chondropathy of the knee
MRI and Arthroscopic evaluation

Some common sport related diseases affecting/involving the knee cartilage are:

Trauma
Inflammation
Osteoarthritis
Complications of surgical procedures on a joint
Chondrodysplasia
Chondromalacia
Osteochondritis Dissecans


Described types articular cartilage lesions:
- normal appearing cartilage  or mild lesion in which it is difficult to dissern the borders of the lesion and normal surrounding cartilage;
- mild fibrillation, discoloration, cartilage softer than normal;
- linear crack:
- stellate lesions: most common;
- flap tear: the carilage is avulsed from the subchondral bone;
- crater: full thickness, in which subchondral bone is exposed;
- degrading lesion: cartilage is degenerative in nature and extends down to subchondral bone;

MR grading system of chondral lesions:

grade 0, normal cartilage;
grade 1, focal blistering and intracartilaginous low-signal intensity area;
grade II, superficial irregularities and loss of thickness of less than 50%
grade III, deep ulceration with loss of thickness of more than 50%;
grade IV, exposure of subchondral bone.

Outerbridge classification:

- grade 0: normal cartilage;
- grade I: cartilage with softening and swelling;
- grade II: a thickness defect with fissures on the surface that do not reach subchondral bone or exceed 1.5 cm (1/2 inch) in diameter;
- grade III: fissuring to the level of subchondral bone in an area with a diameter more than 1.5 cm (1/2 inch);
- grade IV, exposed subchondral bone.

Lysholm knee scale:

- originally designed to assess ligament injuries of the knee but later has been used to asses chondral injuries of the knee;
- measure that contains 8 domains: limp, locking, pain, stair-climbing, support, instability, swelling, and squatting;
- score of 0 to 100 is calculated:
- 95 to 100 indicates an excellent result;
- 84 to 94 indicates a good result;
- 65 to 83 indicates a fair result;
- less than 65 indicates a poor result;

Online resources:

Chondropathy - Chondrodystrophy

http://medical-dictionary.thefreedictionary.com/chondropathy
http://medical-dictionary.thefreedictionary.com/chondrodystrophy

Cartilage disorders
http://www.wrongdiagnosis.com/c/cartilage_disorders/intro.htm

Chondromalacia
http://www.kneeguru.co.uk/KNEEnotes/?q=chondromalacia

Evaluation arthroscopique des lesions chondrales du genou
http://www.maitrise-orthop.com/viewPage.do?id=706

Quantitative MR Imaging Evaluation of Chondropathy in osteoartrithic knees
http://radiology.rsna.org/content/208/1/49.full.pdf

Cartilage Disorders
http://www.nlm.nih.gov/medlineplus/cartilagedisorders.html#cat1

Arthroscopic evaluation of chondropathy in osteoarthritis of the knee
http://www.ncbi.nlm.nih.gov/pubmed/8730130

Classification of Chondral and Osteochondral Injuries of the Knee - Wheeless' Textbook of Orthopaedics
www.wheelessonline.com/ortho/classification_of_chondral_and_osteochondral_injuries_of_the_knee

Cartilage Restoration
http://www.cartilagedoc.org/downloads/knee/Cartilage_Restoration_Overview_Treatment_Options.pdf

Diseases of the Musculoskeletal System and Connective Tissue (710-739)
http://www.theodora.com/diseases/musculoskeletal_and_connecive.html

Chondropathy
http://www.answers.com/topic/chondropathy-1

Atlas chirurgical de médecine du sport - De Mark Miller,Richard-F Howard,Kevin-D Plancher


January 3,  2010


Notice:
This site is primarily intended for use by qualified medical or sport professionals.
If you are a consumer, you should evaluate the information together with your physician or other qualified healthcare professional.
The information provided here is for educational and informational purposes only and should not be considered as a medical advice.
As medical and sport science is permanently changing, we (authors and publishers) use our best efforts to provide accurate information, but we can not warrant that the information in this article and web site is accurate, complete or up-to-date.
This article reflects the opinions and judgments of it's author and may be further updated.
If you have questions regarding this article, please contact the author.


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