Is scapular endoprosthesis functionally superior to humeral suspension?

Area of Science:

• Orthopedic Surgery
• Reconstructive Surgery
• Musculoskeletal Oncology

Background:

• Humeral suspension was the standard reconstructive method post-total scapulectomy until the early 1990s.
• Scapular endoprosthetic reconstruction emerged as an alternative when specific muscles are preserved.

Purpose of the Study:

• To compare functional and cosmetic results of scapular endoprosthetic reconstruction versus humeral suspension after total scapulectomy.
• To test the hypothesis that endoprosthetic reconstruction yields better outcomes.

Main Methods:

• Retrospective comparison of 32 patients undergoing total scapulectomy from 1979-2003.
• 16 patients received scapular endoprostheses, and 16 received humeral suspensions.
• Evaluation of functional (range of motion, Musculoskeletal Tumor Society scores) and cosmetic results.

Main Results:

• Scapular endoprostheses group showed significantly better functional results and cosmesis.
• Mean Musculoskeletal Tumor Society scores were 78.5% (endoprosthesis) vs. 58.5% (suspension).
• Endoprosthesis group achieved greater abduction (40+ degrees) and required no cosmetic aids.

Conclusions:

• Scapular endoprosthetic reconstruction provides superior functional and cosmetic outcomes after total scapulectomy.
• This technique is recommended when rhomboids, latissimus dorsi, deltoid, and trapezius muscles are preserved.
• Endoprosthetic reconstruction improves shoulder function and aesthetic appearance post-scapulectomy.