When should you see a doctor for knee pain? Dr. Christopher Kester, an orthopaedic surgeon at Main Line Health Orthopaedics & Spine, discusses the big signs to watch for that could mean a damaged ligament or tear. Thanks for following our first "Ask the Expert" series! #orthopaedicsurgery #ortho #orthopaedicsurgeon #health #wellness #kneepain #kneesurgery #doctor #surgeon #orthopaedics