The amount of blood vessels in the fibrocartilage throughout the meniscus varies. The outer 1/3 of the meniscus is vascular, which means there is an abundance of blood vessels to allow blood to the area. The central part of each meniscus has fewer blood vessels and the inner 1/3 does not contain any. As a result, a tear on the outer peripheral of the meniscus can heal faster than one on the inner portion. Tears in the innermost part of the meniscus may not heal completely due to the lack of blood supply.
Without proper nutrition (blood supply) the menisci may partially disintegrate resulting in less cushioning and protection within the joint. Proper blood flow ensures nutrients and oxygen reach the area and metabolic waste is removed from the fibrocartilage.
When functioning properly, the knee joint naturally receives blood flow through movement and the pumping action of body weight shifting from knee to knee. However, other therapies such as Deep Tissue Regeneration Therapy (The Knee T-Shellz Wrap) will promote more blood flow, even when the knee is at rest. Greater blood flow results in faster and more complete healing when meniscus or ligament damage occurs.