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Background: Scapular winging is a rare and often misdiagnosed disorder, which can be painful and functionally limited. Medial scapular winging is often due to serratus anterior dysfunction in the setting of a long thoracic nerve palsy. While nonoperative management can be successful, transfer of the pectoralis major with autograft hamstring augmentation to the inferior scapula is an effective operative means of relieving pain and restoring shoulder function in those who fail conservative management. Indications: The patient is a 16-year-old woman with symptomatic medial scapular winging who had a complete workup and 6-month course of conservative treatment, including physical therapy. Thus, we elected to proceed with a 2-incision transfer of the sternal head of pectoralis major transfer with autograft hamstring augmentation to the inferior scapular angle. Technique Description: A 2-incision transfer of the sternal head of pectoralis major with autograft hamstring to the inferior scapular angle is a strong and reliable method of operatively treating medial scapular winging. In addition, performing this operation in the lateral position allows for ease of access to both the anterior and posterior incisions. Results: At 1-year follow-up, the patient had full, painless range of motion of the shoulder with 5/5 strength in all tested planes. She also had returned to all activities, including softball, without restrictions. Discussion/Conclusions: A 2-incision transfer of the sternal head of the pectoralis major with autograft hamstring augmentation to the inferior scapular angle is an effective means of operatively treating medial scapular winging. Multiple studies have shown that this operation improves motion, pain, and function for those who have failed an appropriate course of conservative treatment. Patient Consent Disclosure Statement: The author(s) attests that consent has been obtained from any patient(s) appearing in this publication. If the individual may be identifiable, the author(s) has included a statement of release or other written form of approval from the patient(s) with this submission for publication.