Classification and Analysis of Attritional Glenoid Bone Loss in Recurrent Anterior Shoulder Instability

Background: Recognition and proper treatment of glenoid bone loss (GBL) are important for successful management of anterior shoulder instability. Although GBL has been described as the amount of bony loss from the front of the glenoid, there is also a fragment of bone that is usually displaced and o...

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Bibliographic Details
Published in:The American journal of sports medicine 2017-03, Vol.45 (4), p.767-774
Main Authors: McNeil, John W., Beaulieu-Jones, Brendin R., Bernhardson, Andrew S., LeClere, Lance E., Dewing, Christopher B., Lynch, Joseph R., Golijanin, Petar, Sanchez, George, Provencher, Matthew T.
Format: Article
Language:English
Subjects:
Adult
Bone Resorption - classification
Bone Resorption - diagnostic imaging
Bone Resorption - physiopathology
Bones
Cross-Sectional Studies
Female
Glenoid Cavity - diagnostic imaging
Glenoid Cavity - physiopathology
Humans
Joint and ligament injuries
Joint Instability - diagnostic imaging
Joint Instability - physiopathology
Male
Medical diagnosis
Middle Aged
Physical examinations
Recurrence
Shoulder
Shoulder Joint - diagnostic imaging
Shoulder Joint - physiopathology
Sports medicine
Tomography, X-Ray Computed
Young Adult
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Summary:Background: Recognition and proper treatment of glenoid bone loss (GBL) are important for successful management of anterior shoulder instability. Although GBL has been described as the amount of bony loss from the front of the glenoid, there is also a fragment of bone that is usually displaced and often undergoes attrition. Thus, due to attritional bone loss (ABL) of the fragment, insufficient bone is left to fully reconstruct the glenoid. Purpose: To (1) evaluate ABL of the glenoid fragment in recurrent anterior shoulder instability and (2) correlate ABL with clinical history, fragment size, and radiographic findings. Study Design: Cross-sectional study; Level of evidence, 3. Methods: GBL was evaluated on 3-dimensional computed tomography (3D CT) en-face view and was measured as percentage loss. The bone fragment size was measured, and attrition of the fragment was determined by evaluation of the amount remaining relative to the initial defect; patients were stratified into minimal (
ISSN:0363-5465
1552-3365
DOI:10.1177/0363546516677736