Double-Allograft Shoulder Stabilization for Multidirectional Instability Is Associated With Improved Function and Survivability After 2 Years.

Purpose: To describe a double-allograft technique used for patients with severe, symptomatic multidirectional instability and hyperlaxity of the shoulder as well as to introduce a modification of the Beighton score that helps determine when this procedure should be utilized and report long-term outcomes of this procedure in the management of these patients. Methods: A retrospective review of patients with multidirectional instability who were managed with the double-allograft technique after failure of extensive physical therapy was conducted. The final analysis included 43 patients (46 shoulders). Included patients had minimum 2 years of in-office follow-up with a Tulane modified Beighton score of 11 or greater and severe multidirectional instability/hyperlaxity of the shoulder. Preoperative and postoperative patient-reported outcome (PRO) measures were compared using 2-tailed paired Results: Mean postoperative outcome scores were significantly improved compared with preoperative scores for all PRO measures evaluated from the 6-month postoperative visit on (all Conclusions: The double allograft reconstruction technique appears to be a safe and effective method to restore shoulder stability in patients with severe ligamentous laxity. Level of Evidence: Level IV, therapeutic case series.