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Non-oncologic indication for elbow megaprothesis replacement: 2 cases report.

Dung Tran Trung1, Quyet Tran1, Nam Vu Tu1

  • 1Vinmec Healthcare System, Hanoi City, Vietnam.

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|September 10, 2021
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Summary

Megaprosthesis elbow replacement effectively treats large bone defects from trauma. This innovative solution restores elbow function and patient satisfaction, highlighting the importance of meticulous preoperative planning for optimal outcomes.

Keywords:
Elbow mega-prothesisPost-trauma sequelaeTotal elbow replacement

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Area of Science:

  • Orthopaedic surgery
  • Biomedical engineering
  • Trauma reconstruction

Background:

  • Elbow bone defects pose significant challenges for restoring joint shape and function.
  • The biomechanical complexity and limited soft tissue coverage of the elbow make reconstruction difficult.
  • Megaprostheses offer a viable solution for extensive elbow bone defects.

Purpose of the Study:

  • To evaluate the efficacy of megaprosthesis elbow replacement in treating large bone defects resulting from trauma sequelae.
  • To assess functional outcomes and patient satisfaction following this reconstructive approach.

Main Methods:

  • Two clinical cases of elbow bone defects (3 cm proximal ulna, 3 cm distal humerus) were treated with customized megaprostheses.
  • One patient had a fused elbow, the other a degenerated elbow after multiple surgeries.
  • Pre- and post-operative functional assessments using the Mayo elbow function assessment scale were performed.

Main Results:

  • Significant improvement in elbow function was observed, with a post-operative Mayo score of 97.5 points.
  • Restored range of motion included 135 degrees flexion, full extension, 90 degrees pronation, and 75 degrees supination.
  • Both patients reported complete satisfaction with the surgical results.

Conclusions:

  • Megaprosthesis elbow replacement is a highly effective treatment for large traumatic elbow bone defects.
  • Careful preoperative preparation is crucial for achieving successful outcomes in these complex cases.