I twisted and sprained my knee badly back in high school. I read once that having a bad knee injury can cause knee arthritis later in life. If so, I'm wondering if there is anything I can do now so I don't end up with knee arthritis.

People who have had a significant injury of the knee joint may have a greater risk for knee arthritis in later years. Prevention includes safe exercises that focus on improving and maintaining joint movement and muscle strength.

Stay active in a low-impact conditioning program, such as walking. To help reduce shock with day-to-day activities, wear supportive shoes, and consider the addition of an insole to help absorb shock. Walk on soft surfaces when possible, and avoid standing and walking for long periods on hard surfaces, such as cement. You might also consider choosing sport and recreational activities that don't require cutting, jumping, and quick starts and stops. The time and effort you invest now to improve the health of your knee and avoid future problems are worth it.