Fig 4.

For the double-bundle superior capsular reconstruction (SCR) procedure, the long head biceps tendon (LHBT) autograft is fixed in 2 sites at superior glenoid (A and D) and 2 sites at the greater tuberosity (B and C), thus creating a box configuration shown in this schematic draw. For a universal description and better communication when we describe these points of fixation, the final construct is described as “ABCD,” each letter representing each of the 4 corners of the box construct. The letter A represents the native attachment of LHBT at anterior glenoid (or the glenoid fixation in case of SLAP II), and the nomenclature ABCD proceeds in a clockwise manner, so that B stands for the anterior fixation point at greater tuberosity, C represents the posterior fixation point at greater tuberosity, and D the posterior fixation point at glenoid. The sequence of fixation according to our technique is DBC in case of intact LHBT anchor, or ADBC in cases of SLAP II that the native point A should be repaired with a knotless anchor. (ISP, infraspinatus tendon; SSC, subscapularis tendon).