title: Sonography as a tool for identifying engaging Hill-Sachs lesions: preliminary experience.
abstract: Engaging Hill-Sachs lesions can be a factor predictive of recurrent anterior shoulder instability, yet no method has been recognized as an effective means to predict engagement. We evaluated the ability of sonography to identify engaging Hill-Sachs lesions by using a transaxillary approach and dynamic scanning. In patients with engaging lesions, there was an abrupt change in the contour of the humeral head when the shoulder was in 90° of abduction and 90° of external rotation. Sonography therefore has the potential to be a useful preoperative tool in determining which patients may benefit from a surgical repair that also addresses Hill-Sachs lesions.
authors: McGill University Health Center, 1650 Cedar Ave, Montreal, QC H3G 1A4, Canada. hans.vanlancker@mail.mcgill.ca
authors: Viviane
authors: V
authors: Khoury
authors: McGill University Health Center, 1650 Cedar Ave, Montreal, QC H3G 1A4, Canada. hans.vanlancker@mail.mcgill.ca
authors: Hans P
authors: HP
authors: Van Lancker
authors: Paul A
authors: PA
authors: Martineau
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007593:Joint Instability / Q000000981:diagnostic imaging* / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012783:Shoulder Dislocation / Q000000981:diagnostic imaging* / Q000209:etiology*; D012784:Shoulder Fractures / Q000150:complications* / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D055815:Young Adult
keywords: Hill-Sachs lesions; dynamic musculoskeletal sonography; engaging Hill-Sachs lesions; musculoskeletal sonography; shoulder