Glenohumeral interposition of rotator cuff stumps: a rare complication of traumatic rotator cuff tear

Abstract

The present report describes a case where typical findings of traumatic glenohumeral interposition of rotator cuff stumps were surgically confirmed. This condition is a rare complication of shoulder trauma. Generally, it occurs in high-energy trauma, frequently in association with glenohumeral joint dislocation. Radiography demonstrated increased joint space, internal rotation of the humerus and coracoid process fracture. In addition to the mentioned findings, magnetic resonance imaging showed massive rotator cuff tear with interposition of the supraspinatus, infraspinatus and subscapularis stumps within the glenohumeral joint. Surgical treatment was performed confirming the injury and the rotator cuff stumps interposition. It is important that radiologists and orthopedic surgeons become familiar with this entity which, because of its rarity, might be neglected in cases of shoulder trauma.

WITHDRAWN: Shoulder pseudoparalysis in a child after massive cuff tear and glenohumeral interposition: a case report

“…The early detection of rotator cuff interposition is not easy since the radiological findings are subtle. Thus, the rate of delayed diagnosis was reported to be up to 70% 1,4,9,13,17,22,25 . Robinson et al 18 proposed that surgeons should lower their threshold for performing early ultrasounds or MRIs if RCTs were suspected, despite a muchdecreased prevalence of these injuries among young patients 21 .…”

“…There are few cases of interposition of the rotator cuff after traumatic shoulder dislocation 1,4,9,13,22,17,25 . We have not found in the literature a case of arthroscopic repair of a massive rotator cuff tear in a patient with a skeletally-immature patient.…”

“…seen in up to 20 % of cases 19 . Even more rarely, traumatic rotator cuff injury may be associated with interposition of rotator cuff tendons between the humerus and the glenoid, which may lead to shoulder dysfunction, including a locked or irreducible glenohumeral joint 1,9,13,16,17,25 . The most common soft tissue block is an interposed long head of the biceps tendon (LHB); however, the literature contains occasional reports of irreducible shoulder dislocations caused by rotator cuff interposition 22,25 .…”

Open reduction and rotator cuff repair of irreducible traumatic shoulder dislocation with sleeve-avulsion and glenohumeral interposition of the cuff: a case report and review of the literature

“…In total, 28 patients could be identified from 1982 to 2021. 1,[3][4][5][6][7]9,[12][13][14][17][18][19]21,[23][24][25]27,29,[31][32][33][34] All but 2 patients were male. Age ranged from 13 to 87 years.…”

Usefulness of dynamic contrast-enhanced MRI in the evaluation of osteonecrosis of the proximal fragment in scaphoid fractures

“…A number of recent studies conducted in Brazil have highlighted the importance of MRI in the evaluation of diseases affecting the musculoskeletal system ( 5 - 9 ) . The use of a reliable noninvasive diagnostic tool to assess the viability of the proximal scaphoid pole is necessary to help surgeons plan the treatment of scaphoid nonunion, because there is currently no consensus regarding when conservative or surgical treatment is indicated.…”