Abstract

Normal anatomic variants of the anterosuperior labrum are common and include the sublabral foramen and the Buford complex. The Buford complex is a rare variant found in a subset of patients with absent anterior-superior labral tissue and a “cordlike” middle glenohumeral ligament (MGHL) originating directly from the superior labrum at the base of the biceps tendon (Williams, Snyder, Buford Jr. Arthroscopy 10:241–7, 1994). The incidence of the Buford complex varies between 1.5% and 6% (Williams, Snyder, Buford Jr. Arthroscopy 10:241–7, 1994; Ide, Maeda, Takagi. Arthroscopy 20:164–8, 2004; Ilahi, Labbe, Cosculluela. Arthroscopy 18:882–6, 2002). A sublabral foramen variant may also be present with or without a “cordlike” middle glenohumeral ligament. When present, the Buford complex is typically associated with an absent superior glenohumeral ligament and a well-developed inferior glenohumeral ligament. Furthermore, this variant may predispose patients to possible superior labral injury (Bents, Skeete. J Shoulder Elb Surg 14:565–9, 2005; Rao, Kim, Chronopoulos, McFarland. J Bone Joint Surg Am 85-A:653–9, 2003).

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