Abstract：
BACKGROUND:Coracoid impingement syndrome is an increasingly recognized etiology of anterior shoulder pain. Numerus studies have documented the coracohumeral distance (CHD) as a primary or secondary measurement in symptomatic individuals, but there lacks an evaluation of CHD in a large cohort of asymptomatic individuals. The purpose of this study was to quantify a normative distribution of the CHD in a large cohort of healthy, asymptomatic subjects with no history of impingement or shoulder instability. METHODS:Incoming first-year students in the United States Military Academy were offered enrollment in this study as part of a prospective cohort to assess the normal anatomic relationships of the shoulder girdle. Magnetic resonance images were obtained, and a board-certified, fellowship-trained musculoskeletal radiologist performed measurements of the smallest distance from the coracoid to the humeral head on axial images. RESULTS:Magnetic resonance images of 714 subjects were available for analysis, including 630 males and 84 females, with a total of 1120 individual shoulders with images of adequate quality. The mean CHD for all shoulders imaged was 13.7 mm. The mean CHD in male shoulders was 13.8 mm, and in female subjects the average was 12.4 mm. CONCLUSIONS:This study is the largest of its kind to evaluate the CHD in asymptomatic, healthy shoulders to date and demonstrates a mean CHD of 13.7 mm for all subjects. This information can help to standardize "normal" ranges and act as a comparison for future work, when taken in the context of age and imaging in neutral rotation.
journal_name
J Shoulder Elbow Surgjournal_title
Journal of shoulder and elbow surgeryauthors
Hodax JD,Shah KN,Campbell SE,Cameron KL,Owens BDdoi
10.1016/j.jse.2020.05.032subject
Has Abstractpub_date
2021-02-01 00:00:00pages
408-412issue
2eissn
1058-2746issn
1532-6500pii
S1058-2746(20)30484-5journal_volume
30pub_type
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2015.04.011
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journal_title：Journal of shoulder and elbow surgery
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doi：10.1016/j.jse.2004.06.010
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journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/s1058-2746(98)90007-6
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journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
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doi：10.1016/j.jse.2017.07.010
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章,meta分析
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journal_title：Journal of shoulder and elbow surgery
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journal_title：Journal of shoulder and elbow surgery
pub_type： 杂志文章
doi：10.1016/j.jse.2016.02.011
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abstract：:The incorrect determination of the flexion-extension axis of the elbow may result in poor clinical outcomes for patients undergoing ligament repairs, joint arthroplasties, and procedures requiring articulated external fixators. The variability in the selection of the flexion-extension axis based on a visual approximat...
journal_title：Journal of shoulder and elbow surgery
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doi：10.1016/j.jse.2005.09.011
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