Surgical Excision of a Rare Ventral Scapular Osteochondroma using the Prone "Chicken-Wing" Position: A Case Report

Ventromedial scapular osteochondroma is an uncommon cause of scapulothoracic impingement and "pseudo-winging." Its deep anatomical location often leads to delayed diagnosis, particularly when symptoms mimic snapping scapula syndrome.

A 10-year-old boy presented with a 2-month history of left upper back pain and difficulty wearing a school backpack. Examination revealed terminal restriction of shoulder motion and medial scapular pseudo-winging. Magnetic resonance imaging confirmed a 3.5 × 2.2 cm osteochondral lesion arising from the ventral surface of the left scapula. The lesion was completely excised through a posterior approach with the patient in a prone "chicken-wing" position.

Optimal patient positioning is critical for safe surgical clearance of ventral scapular tumors. Complete excision leads to immediate relief of mechanical symptoms and excellent functional recovery.