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Related Concept Videos

Muscles of the Shoulder01:23

Muscles of the Shoulder

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The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
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The anterior thoracic muscles include the serratus anterior, subclavius, and...
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Effect of infraspinatus integrity on external rotation following reverse total shoulder arthroplasty for massive rotator cuff tears.

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Reverse Total Shoulder Arthroplasty
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Reverse Shoulder Arthroplasty for B2 Glenoid Deformity.

Andrew M Holt1, Thomas W Throckmorton1

  • 1Campbell Clinic, Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee, Memphis, Tennesse.

Journal of Shoulder and Elbow Arthroplasty
|September 9, 2021
PubMed
Summary
This summary is machine-generated.

Reverse shoulder arthroplasty effectively treats B2 glenoid deformities in shoulder osteoarthritis. Surgical techniques like eccentric reaming and bone grafting correct anatomical issues, ensuring stable joint function and implant fixation.

Keywords:
B2 glenoidReverse shoulder arthroplastybaseplate augmentationbiconcave glenoideccentric glenoid reamingglenoid bone grafting

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Radiology

Background:

  • B2 glenoid deformity in shoulder osteoarthritis involves excessive retroversion and posterior deficiency.
  • This complex anatomy presents significant challenges for traditional shoulder arthroplasty.
  • Successful treatment requires correcting retroversion and ensuring stable, well-fixed implants.

Purpose of the Study:

  • To evaluate the efficacy of reverse shoulder arthroplasty for treating B2 glenoid deformities.
  • To discuss surgical techniques used to address the unique challenges of the B2 glenoid.
  • To assess the outcomes of reverse shoulder arthroplasty in this patient population.

Main Methods:

  • Review of surgical techniques including eccentric reaming, bone grafting, and baseplate augmentation.
  • Analysis of biomechanical advantages of reverse shoulder arthroplasty for glenoid deformities.
  • Synthesis of reported clinical outcomes and implant fixation data from literature.

Main Results:

  • Reverse shoulder arthroplasty offers favorable biomechanics and a stable baseplate for B2 glenoids.
  • Eccentric reaming is suitable for mild deformities; bone grafting for larger corrections.
  • Augmented components show early promise for addressing complex anatomical variations.

Conclusions:

  • Reverse shoulder arthroplasty is a valuable treatment option for B2 glenoid deformities.
  • Tailored surgical techniques are crucial for optimizing outcomes in these challenging cases.
  • Promising results support the use of reverse shoulder arthroplasty in older patients with B2 glenoid deformities.