New Insights Into Common Knee Injuries

Armen Hareyan's picture

Knee Injuries

The sort of swelling that occurs when a joint is damaged by injury or degeneration is normally essential to the healing process, but when it comes to the knee, that inflammation can actually interfere with healing.

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These findings in experiments with pigs may lead to treatments for injuries or osteoarthritis in the knee, according to Duke University Medical Center orthopedic researchers. There are drugs that can block the action of these immune system proteins that trigger joint inflammation.

The Duke researchers report in the September issue of the journal Arthritis & Rheumatism that two immune system proteins, interleukin-1 (IL-1) and tumor necrosis factor (TNF), block the healing of the damaged pig meniscus, an important layer of buffering tissue within the joint. When agents that counteract the effects of these two proteins were administered directly to the damaged meniscus, the repair process resumed.

The primary function of the meniscus