What is the primary function of the menisci in the knee joint?

What is the primary function of the menisci in the knee joint?

• A. shock absorption and load distribution
• B. provide stability by preventing patellar dislocation
• C. facilitate movement by reducing friction
• D. produce synovial fluid for joint lubrication

Answer: (A)

The main job of the knee menisci is to absorb shock and distribute load. They are fibrocartilaginous pads that sit between the femoral and tibial surfaces, increasing the contact area of the joint. By spreading weight across a larger surface, they reduce peak stresses on the articular cartilage, especially during standing and activities that load the knee. This load distribution helps protect the joint from wear and injury over time. They also contribute to stability by shaping the contact surfaces, but the primary function remains how they cushion and distribute forces. Producing synovial fluid is the job of the synovial membrane, not the menisci, and while the menisci can help reduce friction as well, that is a secondary effect compared with their load-distributing role.

The main job of the knee menisci is to absorb shock and distribute load. They are fibrocartilaginous pads that sit between the femoral and tibial surfaces, increasing the contact area of the joint. By spreading weight across a larger surface, they reduce peak stresses on the articular cartilage, especially during standing and activities that load the knee. This load distribution helps protect the joint from wear and injury over time. They also contribute to stability by shaping the contact surfaces, but the primary function remains how they cushion and distribute forces. Producing synovial fluid is the job of the synovial membrane, not the menisci, and while the menisci can help reduce friction as well, that is a secondary effect compared with their load-distributing role.