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Related Experiment Video

Updated: Dec 18, 2025

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

43.7K

GPS guided reverse shoulder arthroplasty.

Giovanni Battista Colasanti1, Fabio Moreschini2, Carlo Cataldi3

  • 1Array. colasanti.gb@outlook.com.

Acta Bio-Medica : Atenei Parmensis
|June 20, 2020
PubMed
Summary

GPS navigation enhances reverse shoulder arthroplasty (RSA) by improving glenoid component placement accuracy and reducing complications. This cadaver study confirms its efficiency and safety in surgical planning and execution.

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Surgical Navigation

Background:

  • Reverse shoulder arthroplasty (RSA) complications, particularly glenoid component failure, are increasing.
  • Accurate preoperative planning and precise surgical execution are crucial for successful RSA.
  • CT 3D planning and navigation systems offer improved accuracy and reproducibility.

Purpose of the Study:

  • To evaluate the precision, safety, and reproducibility of the GPS navigation system for reverse shoulder prosthesis.
  • To assess the accuracy of glenoid component positioning using GPS navigation in a cadaver model.

Main Methods:

  • The GPS navigation system was tested on 6 scapulohumeral cadaver specimens.
  • Anatomical dissection was performed to verify glenoid component positioning and screw placement.

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  • Comparison of virtual planning with actual surgical outcomes was conducted.

    • Main Results:

    • No instances of central peg perforation or malpositioned screws were observed.
    • No bone perforation or injury to adjacent neurovascular structures occurred.
    • Accurate screw placement was confirmed with average lengths of 42mm and 40mm for lower and upper screws, respectively.

    Conclusions:

    • GPS navigation demonstrates high efficiency in baseplate and screw placement for RSA.
    • The system aids in avoiding intraoperative and postoperative complications.
    • GPS navigation is a valuable tool for precise and reliable RSA procedures.