Abstract Type of study: This study was an anatomic investigation of glenoid structure and its consistent anatomic landmarks as determined by arthroscopic means in live subjects and by direct measurement in fresh-frozen cadaver specimens. Methods: We arthroscopically evaluated and measured the location of the bare spot of the glenoid in 56 subjects that had no evidence of instability (average age, 40 years). We also measured the exact location of the glenoid bare spot in 10 cadaver shoulders (average age, 76 years). Results: The bare spot of the glenoid was a consistent reference point from which to determine glenoid bone loss because it was located almost exactly at the center of the circle that was defined by the articular margin of the inferior glenoid below the level of the midglenoid notch. The tightly clustered standard deviations of the bare spot measurements in both the live subjects and the cadaver specimens confirmed its consistent location. Conclusions: The glenoid bare spot can be used as a central reference point to quantify the percentage bone loss of the inferior glenoid. Such objective measurement of glenoid bone loss can be clinically useful to the surgeon in deciding whether bone grafting is necessary to restore stability to the shoulder with a bone-deficient glenoid.The complete article is available for download here.
Quantifying Glenoid Bone Loss
In Shoulder Instability
Real Patient Reviews
About The Author
Dr. Armin Tehrany is a board-certified orthopedic surgeon specializing in minimally invasive management techniques of knee and shoulder injuries and conditions in NYC. He is an Honorary Police Surgeon and serves as a Clinical Assistant Professor at Mount Sinai School of Medicine’s Department of Orthopedic Surgery. His specialist knowledge, expertise, and best practice methods of care in knee and shoulder treatment are recognized by the many awards received throughout his career.