Tennis elbow primarily affects which area of the elbow?

• A. Medial epicondyle
• B. Lateral epicondyle
• C. Olecranon process
• D. Capitulum

Answer: (B)

Tennis elbow, known medically as lateral epicondylitis, primarily affects the lateral epicondyle of the elbow. This condition arises from repetitive strain or overuse of the muscles and tendons that attach to the lateral epicondyle, typically due to activities involving the wrist and arm. As a result of this strain, the tendons can become inflamed, leading to pain and discomfort on the outer part of the elbow, which is characteristic of tennis elbow.

The lateral epicondyle is critical in this condition as it serves as the attachment point for several extensors of the forearm, which can become stressed and lead to injury. Being aware that tennis elbow affects this specific area helps in understanding the recommended treatments as well as preventive measures, which often focus on reducing stress on the lateral elbow through proper techniques and exercises.