RESEARCH & ARTICLES

Biomechanical Evaluation and Surface Analysis of Glenoid Reconstruction Using a Subtalar Joint Allograft for Significant Glenoid Bone Loss in Recurrent Shoulder Instability: A Novel Alternative Graft

Purpose: To compare the contact mechanics of a subtalar joint allograft (STA) versus a coracoid graft (Latarjet procedure) and a distal tibial allograft (DTA) for anatomic glenoid reconstruction in the setting of substantial glenoid bone loss related to recurrent shoulder instability.

Summary:

  • This cadaveric study compares the contact mechanics of talus allograft, DTA, and coracoid autograft for anatomic glenoid reconstruction.
  •  Anatomic reconstruction using either a DTA or talus allograft fully restored glenohumeral contact mechanics.
  • Both DTA and talus grafts demonstrated improved surface congruency and contact area compared to the traditional Latarjet procedur


JRF Takeaways: Distal tibia allografts (DTA) continue to offer surgeons a reliable option for glenoid reconstruction without the donor site morbidity associated with autografts. Talus allografts also present as a novel alternative, providing excellent anatomical conformity for glenoid reconstruction.

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Authors: Phob Ganokroj, MD, Justin F.M. Hollenbeck, MSc, Marco Adriani, MD, Ryan J. Whalen, BS, CSCS, Amelia H. Drumm, BA, Alexander R. Garcia, BS, Wyatt H. Buchalter, BS, Trevor J. McBride, MD, Marco-Christopher Rupp, MD, Matthew T. Provencher, MD, MBA, MC

Published: The American Journal of Sports Medicine

Institution: Steadman Philippon Research Institute, Vail, Colorado, U.S.A.