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
