MRI findings associated with luxatio erecta humeri

Abstract

Common magnetic resonance imaging findings in patients with a prior luxatio erecta humeri dislocation include rotator cuff tears, injury to the glenoid labrum, and injury to both the anterior and posterior bands of the inferior glenohumeral ligament. These findings are compatible with the mechanism of dislocation in luxatio erecta, and noting these findings on magnetic resonance imaging may suggest that the patient has sustained a prior inferiorly directed glenohumeral dislocation such as luxatio erecta.

CT and MRI manifestations of luxatio erecta humeri and a review of the literature

“…Thus far, only 2 LEH MR arthrograms, 3 LEH MRIs (5 in total) and 3 LEH CT scans have been described in the literature [5,[8][9][10][11]; to our knowledge, no CT arthrogram findings of LEH has been reported. This study adds 10 patients diagnosed with LEH, with 8 CT scans ( 2 out of 8 are CT arthrograms) and 4 MRIs (2 out of 4 are MR arthrograms), to the literature.…”

“…The shoulder is locked with complete restriction of movements [4]. This type of dislocation is frequently associated with neurovascular and musculoskeletal injuries [1,5,6]. Mallon et al observed that 12% of the patients who had associated musculoskeletal injuries had rotator cuff tears [1].…”

“…the humeral shaft parallel to the scapular spine, and the humeral head at or below the inferior rim of glenoid [5]. Radiographs may also show the possible fractures of the greater tuberosity, the acromion, coracoid, humeral head, clavicle and the glenoid rim [4,7].…”

“…Radiographs may also show the possible fractures of the greater tuberosity, the acromion, coracoid, humeral head, clavicle and the glenoid rim [4,7]. However, computed tomography is a better tool to evaluate associated fine fractures [8], and magnetic resonance imaging better reveals the injuries to the rotator cuff, the labrum, and the ligaments [5].…”

Bilateral inferior dislocation of the shoulder joint (bilateral luxatio erecta humeri): Case report

“…Veruje se da su oštećenja rotatorne manţetne ramena mnogo češća nego što se opisuje u literaturi, upravo zbog činjenice da su često neprepoznata u vreme nastanka dislokacije. Ispitivanja magnetnom rezonancom često pokazuju oštećenja rotatorne manţetne, uključujući supraspinatni i infraspinatni mišić, veliki obli mišić, a u reĎim slučajevima i subskapularni mišić [21].…”