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"Buford Complex"- Normal variation of labral anatomy. Rare but normal anatomic finding where a "cord-like" middle glenohumeral ligament originates directly from the superior labrum at the base of the biceps tendon with an absence of anterosuperior labral tissue. Misdirected surgical attachment of the cord-like middle glenohumeral ligament to the anterosuperior glenoid results in painful restriction of external rotation and elevation. However, failure to appreciate a pathologically loose superior labrum with this anatomic variant may render the middle glenohumeral ligament incompetent. Many mistake it for a slap lesion. Check out Buford Complex in a search engine it is very interesting.
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