Magnetic resonance imaging of deltoid muscle/tendon tears: a descriptive study

Atraumatic Deltoid Rupture with a Chronic Massive Rotator Cuff Tear: A Case Report and Surgical Technique

“…Deltoid ruptures have been reported in the setting of chronic RCTs, steroid injections, sclerotic changes, open RCR or acromioplasty, trauma, calcific tendinopathy, and chronic subacromial bursitis [ 3 – 6 ]. Sclerotic changes of the humeral greater tuberosity can accelerate the rate at which attrition occurs by creating frictional forces on the undersurface of the deltoid [ 3 ].…”

“…Deltoid ruptures have been reported in the setting of chronic RCTs, steroid injections, sclerotic changes, open RCR or acromioplasty, trauma, calcific tendinopathy, and chronic subacromial bursitis [ 3 – 6 ]. Sclerotic changes of the humeral greater tuberosity can accelerate the rate at which attrition occurs by creating frictional forces on the undersurface of the deltoid [ 3 ]. Calcific tendinopathy and chronic subacromial subdeltoid bursitis are two additional conditions where degeneration and chronic local inflammation, respectively, can lead to deltoid rupture [ 3 ].…”

“…Sclerotic changes of the humeral greater tuberosity can accelerate the rate at which attrition occurs by creating frictional forces on the undersurface of the deltoid [ 3 ]. Calcific tendinopathy and chronic subacromial subdeltoid bursitis are two additional conditions where degeneration and chronic local inflammation, respectively, can lead to deltoid rupture [ 3 ]. Local and systemic steroid exposure can weaken both the deltoid tendon and muscle belly itself [ 2 – 4 , 6 ].…”

“…Ilaslan et al and Colak et al reported a review based on imaging of this injury. The former found in 8,562 shoulder MRIs, only 24 patients (0.3%) had both injuries while the latter found this concurrence in only 46 of the 111,889 shoulder MRIs reviewed (0.04%) [ 3 , 5 ]. The remaining 4 articles found 7 patients with concurrent injuries, further affirming the scarcity of this diagnosis [ 2 – 4 , 11 ].…”

The incidence of deltoid tear among patients with full-thickness rotator cuff tear

“…The association of deltoid tear with RCT in patients without previous surgical repairs has rarely been reported in the literature [ [9] , [10] , [11] , [12] , [13] ]. There are few studies describing the imaging findings of spontaneous deltoid tear in patients with chronic FT-RCT [ [14] , [15] , [16] ]. Ilaslan et al [ 15 ] reported 24 deltoid tears cases in patients with chronic FT-RCT, with an incidence rate of 0.3%.…”