Studying The Cause Of Back PainAs researchers study the cause of back pain, one theory is that an altered protein found in cartilage can interact with a growth factor previously associated with connective tissues disorders.
Penn OrthopaedicsLearn more about Penn Orthopaedics.
Dr. Elia & Dr. Giammattei On ReplacementAs we get older, we often feel the effects in our knees and our hips.

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