What is articular cartilage composed of?
The white articular cartilage has a very special internal structure, with the cartilage cells or chondrocytes suspended in pockets within a background matrix supported by collagen fibres.
"....Articular cartilage is devoid of blood vessels, lymphatics, and nerves and is subject to a harsh biomechanical environment....The superficial layer....is in contact with synovial fluid and is responsible for most of the tensile properties of cartilage...."
Grading of articular cartilage damage
Surgeons will grade the damage they see through the arthroscope according to the 'Outerbridge' scale.
This allows other surgeons to easily understand the situation, and also provides a measure that can be compared with later findings if the cartilage deteriorates or improves.
Articular cartilage damage and arthritis
Articular cartilage is also called joint cartilage or hyaline cartilage. It is damage to the articular cartilage which is called 'arthritis'
In the knee all efforts are geared towards preventing any damage or breakdown of this all-essential joint surface, as it has a poor blood supply and does not heal well if damaged.
"Once articular cartilage is damaged, full recovery of its structure, function and biomechanical property is hardly expected in most cases....stimulation of articular cartilage repair and regeneration of articular cartilage are strong demands [from patients]...."
Other relevant links
Matrix, Chondrocyte, Chondromalacia, Cartilage fibrillation, Focal cartilage defect, Outerbridge classification, Cartilage repairOrthobiologic
Forum discussions
- “Seeking Advice on Returning to Sports After Severe Knee Cartilage Damage” - Previous Olympic gymnast seeks advice about articular cartilage damage.