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Autografting for B2 Glenoids.

Siddhant K Mehta1, Jay D Keener1

  • 1Department of Orthopaedic Surgery, Washington University in Saint Louis School of Medicine, St. Louis, Missouri.

Journal of Shoulder and Elbow Arthroplasty
|September 9, 2021
PubMed
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Reconstructing the Walch B2 glenoid deformity, characterized by retroversion and subluxation, can be challenging. Humeral head autografting during total shoulder arthroplasty offers a solution for severe cases, enhancing bone stock and correcting version.

Area of Science:

  • Orthopedic Surgery
  • Shoulder Reconstruction
  • Biomechanical Analysis

Background:

  • The Walch B2 glenoid presents a complex deformity including biconcave shape, acquired retroversion, and posterior humeral head subluxation.
  • Surgical correction of the B2 glenoid deformity is frequently complicated by its intricate nature.

Purpose of the Study:

  • To review the distinct morphology of the Walch B2 glenoid.
  • To discuss the management challenges associated with B2 glenoid deformities.
  • To provide insights into the use of humeral head autografting for B2 glenoid reconstruction during anatomic total shoulder arthroplasty.

Main Methods:

  • This review synthesizes current literature on Walch B2 glenoid morphology and surgical management.
  • It specifically focuses on the technique and outcomes of using humeral head autograft for glenoid bone augmentation.
Keywords:
Walch B2 glenoidanatomic total shoulder arthroplastyautograftingbiconcave glenoidbone grafting

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  • The review discusses the technical aspects and potential complications of this reconstructive approach.

    • Main Results:

    • Humeral head autografting is a viable option for correcting severe glenoid retroversion (>25°-30°) in young, active patients undergoing anatomic total shoulder arthroplasty.
    • This technique can improve glenoid bone stock and correct version, potentially enhancing implant longevity and functional outcomes.
    • However, the procedure is technically demanding and carries risks of graft-related complications.

    Conclusions:

    • Autografting with humeral head bone is a valuable technique for addressing severe Walch B2 glenoid deformities.
    • Careful consideration of surgical technique and potential complications is crucial for successful outcomes.
    • This approach can significantly improve the results of anatomic total shoulder arthroplasty in specific patient populations.