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Citation, DOI & article dataCitation: Morgan, M., Murphy, A. Shoulder (external rotation view). Reference article, Radiopaedia.org. (accessed on 08 Sep 2022) https://doi.org/10.53347/rID-37169 The shoulder external rotation view is an additional projection to the standard shoulder series it is often combined with the internal rotation view to visualize the entirety of the humeral head. On this page:This projection is often done as a series, it is useful to demonstrate the greater tubercle humerus in profile.
The technical factors of this examination are not particularly demanding, and there is not much room for positioning error other than over or under rotation to compensate for the scapular body. Patients will find it hard to externally rotate their arm, so take this into consideration and only have them perform is at the last minute. An open glenohumeral joint is a sign of over rotation toward the affected side. This results in a more ‘glenoid AP’ view; some departments may ask the projection be done in the 'glenoid AP' view. Quiz questionsRelated articles: Imaging in practicePromoted articles (advertising)Which radiographic view demonstrates the the greater tuberosity in profile?scapula,clavicle, ac. How is the greater tubercle demonstrated in profile?An AP projection of the shoulder with the arm in external rotation will demonstrate the greater tubercle of the humerus in profile on the lateral surface of the bone and slight superimposition of the humeral head and the glenoid.
How is the greater tubercle visualized on a lateral image of the humerus?External rotation is evident by greater tubercle visualized in full profile on the lateral aspect of humerus. Lesser tubercle is superimposed over humeral head. Internal rotation is evident by lesser tubercle visualized in full profile on the medial aspect of humerus. Greater tubercle is superimposed over humeral head.
Which projection of the shoulder demonstrates the lesser tuberosity in profile medially?Cards
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