ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Knee injury. Coloured 3D computed tomography (CT) scan of a knee with a meniscal tear (white line at right between bones). The menisci are fibrocartilage crescents that act as shock absorbers between the femur (thigh bone, top) and tibia (shin bone, bottom). A tear in a meniscus can be caused by trauma, most often a sports injury, or by wear and tear. Treatment depends on the severity of the tear. Minor tears may respond to physical therapy and anti-inflammatory drugs, but more serious injuries require surgical treatment.
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