Related Experiment Video
Updated: Dec 6, 2025
Author Spotlight: Development of a Novel Finite Element Analysis Model for Improved Orthognathic Surgical Techniques
Published on: October 20, 2023
Mathematical modeling of glenoid bone loss demonstrate differences in calculations that May affect surgical decision
Stephen A Parada1, Matthew C Jones1, Mikalyn T DeFoor2
1Department of Orthopaedics, Medical College of Georgia at Augusta University Medical Center, Augusta, GA, USA.
Objective:
Two glenoid bone loss calculations are compared across a range of anatomic glenoid sizes.
Methods:
20 cadaveric paired glenoid diameters were measured to create glenoid models with bone loss calculated in 1 mm linear increments up to 50% bone loss comparing the linear measurement percentage (LMP) to the circle line method (CLM) gold standard.
Results:
The LMP overestimates glenoid bone loss at every potential 1 mm increment across each glenoid model until bone loss reaches 50%.
Conclusion:
The widely-used LMP method overestimates bone loss compared to a gold standard potentially misguiding surgeons towards bony reconstruction in shoulder instability during preoperative planning.
