03-29-2019
Osmosis: Posterior compartment of the forearm (radialis muscles). (2019, June 18). Retrieved from (https://www.osmosis.org/learn/Posterior_compartment_of_the_forearm_(radialis_muscles)).
A 21-year-old woman who is a college-level squash player comes to the clinic because of recent onset of elbow pain. She rates the pain as a 4 on a 10-point scale which has been constant for the past two days and radiates inferiorly along the posterolateral aspect of her elbow and forearm. Her temperature is 37.1°C (98.8°F), pulse is 62/min, respirations are 14/min, and blood pressure is 110/70 mm Hg. Physical examination shows tenderness to palpation near the lateral epicondyle and reproduction of the pain on wrist extension. There is mild swelling without redness at the lateral epicondyle. Which of the following muscles is most likely injured?
