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Citation, DOI & article dataCitation: Morgan, M., Murphy, A. Shoulder (internal rotation view). Reference article, Radiopaedia.org. (accessed on 08 Sep 2022) https://doi.org/10.53347/rID-37168 The shoulder internal rotation view is an additional projection to the standard shoulder series it is often combined with the external rotation view to visualize the entirety of the humeral head. On this page:This projection shows the lesser tubercle of the humerus in profile and can be used to detected suspected Hill-Sachs lesions.
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 find it hard to rotate their arm internally, 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)What structure is best demonstrated on the AP projection of the shoulder in internal rotation?XR 103 final exam. What is shown in profile on an AP projection of the humerus?A true AP projection is evidenced at the proximal humerus by the following: The greater tubercle is seen in profile laterally. The humeral head is partially seen in profile medially, with minimal superimposition of the glenoid cavity.
How many degrees is the body rotated for the AP oblique projection of the shoulder joint?The AP oblique Grashey view is obtained with the patient rotated 35-45 degrees and his or her back (scapular body) up against the imaging detector.
Which projection of the shoulder best demonstrates the greater tubercle of the humerus in profile?osterology, arthrology, and position of the shoulder girdle. |