What is Tommy John surgery?

Tommy John surgery refers to the surgical repair of the ulnar collateral ligament and the transposition (moving to a better location) of the ulnar nerve. This surgery is common in baseball pitchers who have poor mechanics or who have just thrown too much.

This answer provided for NATA by the Southern Utah University Athletic Training Education Program.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.