Hill-Sachs fracture on shoulder ultrasound скачать в хорошем качестве

Hill-Sachs fracture on shoulder ultrasound

Hill-Sachs lesion, named after American radiologists Harold Arthur Hill and Maurice David Sachs, is the classic example of a compression fracture, which results when the soft bone of the posterossuperior aspect of humeral head impacts against the harder sharper edge of the anteroinferior glenoid. Anteroinferior glenoid fracture may be an associated finding, usually referred to as bony Bankart lesion, after English orthopaedic surgeon Arthur Sydney Blundell Bankart. Ultrasound performs better than radiography to identify Hill-Sachs lesions and has accuracy rates greater than 90% when compared to arthroscopy and CT arthrography. The differential diagnosis of Hill-Sachs lesions includes the naturally occurring bare area of the humerus, which is depicted as a physiological shallow cortical depression located between the articular cartilage and the synovial reflection from the posterior wall of the glenohumeral joint. Contralateral comparison may be helpful to differentiate the anatomical finding from compression fracture in dubious cases. Ultrasound can also depict bony Bankart lesions during both static and dynamic evaluation. Loss of convexity of the posteroinferior glenoid rim is a feature of congenital glenoid dysplasia or hypoplasia that should not be confused with fracture. Ultrasound is also useful to assess lesions in dynamic stabilizers, such as the rotator cuff, long head of the biceps brachii and deltoid, which further aggravate instability generated by bone insufficiency secondary to proximal humerus or glenoid fracture. MRI and MR arthrography are advantageous to evaluate recurrent shoulder instability because they allow for detection of deep sited bone and soft tissue pathology (e.g.: labrum) that cannot be reliably assessed at ultrasound. Learn more on musculoskeletal ultrasound reading Ultrasound of the Shoulder at https://amzn.com/dp/B00EN4EWDA ======== Want more videos like this? Just hit the like button... Leave a comment.... Or subscribe for new weekly videos on musculoskeletal ultrasound. ======== #Hill-Sachs #fracture #ultrasound