A ratio estimating glenoid bone loss
Background: Estimating glenoid bone loss when assessing the unstable shoulder can be challenging. The aim of this article was to describe a simple derived ratio to estimate glenoid bone loss. Methods: When the glenoid is damaged and bone is damaged because of instability, the anterior aspect of the...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-09-01
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| Series: | JSES International |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666638322001062 |
| _version_ | 1818494479425863680 |
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| author | Evan S. Lederman, MD Anup A. Shah, MD |
| author_facet | Evan S. Lederman, MD Anup A. Shah, MD |
| author_sort | Evan S. Lederman, MD |
| collection | DOAJ |
| description | Background: Estimating glenoid bone loss when assessing the unstable shoulder can be challenging. The aim of this article was to describe a simple derived ratio to estimate glenoid bone loss. Methods: When the glenoid is damaged and bone is damaged because of instability, the anterior aspect of the glenoid loses its normal curvature and becomes flattened. In geometry, this represents a chord. There are 3 assumptions for the calculations: (1) the lower glenoid is a circle; (2) there is a relationship between the glenoid height and the diameter of the glenoid circle; and (3) the length of the measured bone loss of the glenoid is a chord. Two measurements are required: glenoid height and length of the glenoid defect. The calculations involved in the ratio are reviewed. Results: If the ratio of the length of the bone defect to the glenoid height is 0.5 (otherwise, 50% of the height), the estimated bone loss is 12%. Conclusion: Glenoid bone loss can be estimated by measuring the length of the glenoid and the length of the defect. |
| first_indexed | 2024-12-10T18:07:02Z |
| format | Article |
| id | doaj.art-2e9211773e22476ab5559462e19d38df |
| institution | Directory Open Access Journal |
| issn | 2666-6383 |
| language | English |
| last_indexed | 2024-12-10T18:07:02Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | JSES International |
| spelling | doaj.art-2e9211773e22476ab5559462e19d38df2022-12-22T01:38:35ZengElsevierJSES International2666-63832022-09-0165763768A ratio estimating glenoid bone lossEvan S. Lederman, MD0Anup A. Shah, MD1Banner Health, University of Arizona College of Medicine, Orthopedic Sports Medicine Institute, Phoenix, AZ, USAOrthopedic Sports Medicine, Banner Health, University of Arizona College of Medicine, Orthopedic Sports Medicine Institute, Phoenix, AZ, USA; Corresponding author: Anup A. Shah, MD, Banner University Medical Group, Banner Health System: Banner Health, 2727 W. Holcombe Blvd, 2nd Floor - Orthopedics, Houston, TX 77025.Background: Estimating glenoid bone loss when assessing the unstable shoulder can be challenging. The aim of this article was to describe a simple derived ratio to estimate glenoid bone loss. Methods: When the glenoid is damaged and bone is damaged because of instability, the anterior aspect of the glenoid loses its normal curvature and becomes flattened. In geometry, this represents a chord. There are 3 assumptions for the calculations: (1) the lower glenoid is a circle; (2) there is a relationship between the glenoid height and the diameter of the glenoid circle; and (3) the length of the measured bone loss of the glenoid is a chord. Two measurements are required: glenoid height and length of the glenoid defect. The calculations involved in the ratio are reviewed. Results: If the ratio of the length of the bone defect to the glenoid height is 0.5 (otherwise, 50% of the height), the estimated bone loss is 12%. Conclusion: Glenoid bone loss can be estimated by measuring the length of the glenoid and the length of the defect.http://www.sciencedirect.com/science/article/pii/S2666638322001062GlenoidBone lossInstabilitySurgical techniqueShoulder surgeryRatio |
| spellingShingle | Evan S. Lederman, MD Anup A. Shah, MD A ratio estimating glenoid bone loss JSES International Glenoid Bone loss Instability Surgical technique Shoulder surgery Ratio |
| title | A ratio estimating glenoid bone loss |
| title_full | A ratio estimating glenoid bone loss |
| title_fullStr | A ratio estimating glenoid bone loss |
| title_full_unstemmed | A ratio estimating glenoid bone loss |
| title_short | A ratio estimating glenoid bone loss |
| title_sort | ratio estimating glenoid bone loss |
| topic | Glenoid Bone loss Instability Surgical technique Shoulder surgery Ratio |
| url | http://www.sciencedirect.com/science/article/pii/S2666638322001062 |
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