Tears of the Humeral Rotator Cuff

Abstract

1. Radiographs of both shoulders were performed on 106 unselected necropsy subjects and those found to be abnormal were examined pathologically. 2. Radiological abnormalities were found in sixty-eight shoulders of thirty-eight subjects. Pathological examination showed rotator cuff tears and associated abnormalities in thirty-five of these, rheumatoid arthritis in one, a previous fracture in one, and one was not examined. 3. The criteria for radiological diagnosis of rotator cuff tears are examined and discussed. 4. The radiological changes give little indication of the severity of the tears or associated abnormalities except in the case of complete rupture of the cuff when acromio-humeral articulation occurs. 5. The lesions are all explicable on a traumatic basis. There is no correlation with the presence or absence of osteoarthritic disease of the joint. 6. The biceps tendon may become damaged or even ruptured in this condition. 7. Villous synovial proliferation was found in fourteen cases, in five of which it was pigmented with histological appearances resembling pigmented villonodular synovitis. The significance of this finding is briefly discussed.

Dynamic acromiohumeral interval changes in baseball players during scaption exercises

“…DFV cannot capture of all the kinematic factors involved in defining AHI, but it does allow for dynamic analysis using methods of radiographic image acquisition and measurement frequently used to diagnose rotator cuff injury. 10,15,45 Although our AHI findings were similar to previous MRI studies with muscle activity, 17,18,22 limitations due to 2-dimensional viewing and lack of ability to visualize soft tissue structures, such as articular cartilage and the supraspinatus tendon, do exist in this method of AHI analysis. Despite the limitations, the use of DFV adds an important dynamic component to the understanding of subacromial space changes during arm elevation.…”

“…10,11,[15][16][17][18][19]21,45 Narrowing of the AHI has been observed during arm elevation in healthy individuals, 11,19,21 with even greater narrowing observed during muscle activity in individuals with SIS. 18 Scapular retraction 48 and adduction muscle activity 19 have both been shown to widen the space, and Desmueles et al 11 reported a strong positive relationship between the reduction of AHI narrowing and functional improvement in SIS patients.…”

Clinical and radiographic evaluation of the shoulder of spinal cord injured patients undergoing rehabilitation program

“…Previous authors have already described radiographic signs of RC tears. [14][15][16] None of the patients in our study had these findings. Kivimäki and Ahoniemi 2 found a mean ACJ space of 3.7 mm in SCI patients and 4 mm in able-bodied, which is similar to our work.…”

Superior humeral head migration occurs after a protocol designed to fatigue the rotator cuff: A radiographic analysis

“…Generally, a healthy range has been found to be between 6 and 7 and 13 and 14 mm, and an unhealthy range below 4 to 5 mm. 9,16,39 Thus, a transitional area with inconsistent injury states appears to exist between 4 and 7 mm. With this large grey area, coupled with excursion measurements taken on such a small scale, a persistent discrepancy exists regarding the significance of humeral head excursion.…”