By Deborah Westergaard, MD Pain Experts The Problem: Incomplete Diagnosis and Treatment of Tennis Elbow Tennis elbow, or lateral epicondylitis, is often misdiagnosed or treated with outdated approaches. Many doctors rely solely on physical exams and blind injections into the extensor tendon using steroids or platelet-rich plasma (PRP). While this may provide temporary pain relief, it often misses key issues like joint involvement, ligament instability, or cartilage damage tha