Arthroscopy with subscapularis upper one-third tenodesis for treatment of recurrent anterior shoulder instability independent of glenoid bone loss

Figure 1 Computed tomography scan and three-dimensional reconstruction of the shoulder joint were routinely performed preoperatively, and the bone defect area was measured. A: Glenoid bone defect was < 20%; B: Glenoid bone defect was > 20%.

Figure 2 Subscapularis upper one-third tenodesis with bone autograft. A: A 3.0-mm suture anchor was drilled at the 4 o’clock position; B: Iliac crest bone autograft was implanted, and Pushlock anchors were inserted to compress the bone block; C: Upper one-third of the subscapularis tendon was tightened; D: Anterosuperior approach was observed again under arthroscopy. The humeral head was completely re-dislocated.

Figure 3 Surgical diagram: Iliac bone block was fixed with Pushlock anchors.

Figure 4 Subscapularis upper one-third tenodesis. A: Upper one-third of the subscapular tendon was sutured; B: Suture line was pressed with a Pushlock anchor and the tension was adjusted appropriately.

Figure 5 Measurement of bone graft resorption (showing 1 wk and 1 yr postoperatively; left shoulder view on 3-dimensional computed tomography scan). A: 1 wk after surgery; B: 1 yr after surgery.