Your knees are complex joints and that makes them more vulnerable to injury. Learning how to prevent knee injuries and treating them if they occur can help you stay active at work and play. Test your knowledge of knees by taking this quiz, based on information from the American Academy of Orthopaedic Surgeons.
Medical Reviewer: Berry, Judith, PhD, APRN Luks, Howard, MD
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Reference: Arthritis section on Better Medicine
Copyright: National Institute of Arthritis http://www.niams.nih.gov/Health_Info/Back_Pain/default.asp
25% of US adults experience at least 1 day of back pain in a 3-month period.