A simple and secure anchoring system for Caspari's transglenoid multiple suture technique using a biodegradable poly-L-lactic acid button

1996 
Abstract To manage a difficulty in tying sutures over the infraspinatus fascia when using Caspari's transglenoid multiple suture technique, we developed a new anchoring system using a biodegradable poly-L-lactic acid (PLLA) button and investigated its clinical efficacy in 28 patients who were followed-up for more than 2 years postoperatively (mean, 26.5 months). Twenty-four patients had Bankart lesions and 4 had detachment of the superior glenoid labrum. The mean age at operation was 22.1 years. The PLLA button measured 8 × 8 × 1.2 mm and had two holes. After multiple sutures were inserted by the routine Caspari technique (mean, 7.3 sutures), the sutures were divided into 2 bundles, passed through the holes in the button, and tied over it on the posterior scapular neck under traction. The arm was immobilized in a Velpeau bandage for 3 weeks after Bankart repair and for 1 to 2 weeks after superior labral repair. The results of Bankart repair were excellent in 13 patients, good in 7, and poor in 4 according to Rowe's rating scale (success rate, 83%), while the outcome of superior labral repair was excellent in 3 and good in 1 according to our own criteria. All 4 patients who showed a poor outcome were contact athletes who developed resubluxation postoperatively. There were no complications, but transient damages to the suprascapular nerve occurred in 2 patients. In conclusion, the PLLA button provided simple and secure suture fixation for the Caspari technique.
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