Decreased axial coracoid inclination angle is associated with rotator cuff tears

Abstract

Decreased coracoid body-glenoid surface, coracoid tip-glenoid surface, and coracoid body-coracoid tip angles are associated with RCT. Decreased angles may reduce subacromial space by projecting the coracoacromial ligament more vertically.

A lower critical coracoid process angle is associated with type-B osteoarthritis: a radiological study of normal and diseased shoulders

“…This sample size was reached based on similar studies conducted. 34 , 43 , 47 , 49 Group characteristics were defined by the scans displaying type-B2 OA, rarest of the studied pathologies. Twenty B2 glenoids were added to 20 B1 glenoids chosen by order of the scan date, to create a group of 40 type-B glenoids.…”

“…Individual variation in size and shape of the coracoid process has been well documented, particularly the association of increased lateral offset with RCTs, especially anterior tears. 17 , 28 , 41 , 49 , 59 An angle incorporating glenoid version and lateral coracoid offset (the ‘critical coracoid process angle’; CCPA), akin to the CSA in the coronal plane, has been coined by Sada et al. 43 It is measured on axial cross-sectional imaging (CT or magnetic resonance imaging [MRI]) and reported to be associated with RCTs but has not been published in peer-reviewed literature or studied in the context of OA.…”

Evaluation of Preoperative Magnetic Resonance Imaging Parameters with Arthroscopic Validation of Subscapularis Tendon Abnormalities in 187 Patients at a Single Center in Turkey

“…The usability of many parameters in the preliminary diagnosis of SS rupture has been evaluated by researchers. These include coraco-humeral distance (the shortest distance between the coracoid process and the tuberculum minus on axial views) [5][6][7][8][9][10][11][12][13][14], coracoid morphology (type A: flat coracoid, type B: osteophyte at the tip of the coracoid, type C: hooked coracoid) [12,13,15], coracoid angle (the angle between the long axes of the proximal and distal segments of the coracoid process on T1-weighted oblique sagittal views) [15], coraco-glenoid angle (the angle between a line running from the most distal part of the coracoid process to the anterior glenoid corner and a line running along the plane of the glenoid surface on axial views) [7,14], coraco-humeral angle (the angle between lines drawn tangentially from the tip of the coracoid process to the medial and lateral aspects of the humeral head on axial views) [7,14], coracoid overlap (the distance between the most distal part of the coracoid process and the glenoid on axial views) [8,14], coracoid body-glenoid angle (the angle between a line running along the plane of the glenoid surface and the coracoid body on axial views) [16], coracoid tip-glenoid angle (the angle between a line running along the plane of the glenoid surface and the coracoid tip on axial views) [16], coracoid tip-body angle (the angle between the coracoid body and the coracoid tip on axial views) [16], coraco-scapular angle (the angle between the base of the coracoid and the scapular line on axial views, it was defined as the coracoid angle in the original study) [17], coraco-lesser tuberosity angle (it was not included in the study because it was calculated from radiography) [18], lesser tuberosity angle (the angle between the vertical line that equally divides the line connecting the anterior and posterior cartilage of the humeral head and the most prominent part of the lesser tuberosity on axial views) [18], and lesser tuberosity height (the distance between the line from the margin of the anterior cartilage to the baseline of the bicipital groove and the parallel line passing the most prominent edge of the tuberculum minus on axial views) …”

Korakoid taşma ile subskapularis yırtıklarının ilişkisi

“…Subkorakoid sıkışmada korakoid çıkıntının anatomik yapısı ve üç boyutlu konfigürasyonu ile ilgili yapılmış pek çok çalışma bulunmaktadır 5,[7][8][9][10][11] . Bu çalışmalarda korakoid çıkıntının lateral projeksiyonu (KT), korakoid kalınlığı, korakoid uzunluğu, korakoidin inferiora yönelim açısı ve miktarı, korakoid ile glenoid arası mesafe, korakoid ile humerus başı arası mesafe, korakoid ile glenoidin lateralden değerlendirildiklerinde aralarındaki açı gibi parametreler değerlendirilmiştir.…”

“…Subkorakoid sıkışmada korakoid çıkıntının anatomik yapısı ve üç boyutlu konfigürasyonu ile ilgili yapılmış pek çok çalışma bulunmaktadır 5,[7][8][9][10][11]…”