Bicipital Groove Edema Mri
There is fluid within the ac joint and pericapsular edema.
Bicipital groove edema mri. It contains the tendon of the long head of the biceps brachii muscle which is ensheathed in a synovial reflection of the. There is a type ii slap lesion. There is mild tendinosis of the biceps tendon within the groove. Magnetic resonance imaging mri is useful in evaluating the lhbt bicipital groove and any fluid or edema that may be indicative of pathology.
There is marrow edema in the distal clavicle and adjacent acromion. Both to the lesser tubercle aswell as to the greater tubercle giving support to the long head of the biceps in the bicipital groove. This should not be mistaken for a cyst or tumor. On radiographs and ct images a round lytic area in the humeral diaphysis is created when a screw is placed to anchor the distal biceps tendon to the humerus.
Identification of injuries of the lhb. The bicipital groove is typically 4 6 mm deep 1. These changes may be stress related versus a grade i sprain of the ac joint. Inflammation of the biceps tendon within the intertubercular bicipital groove is called primary biceps.
Biceps tendon laxity in the bicipital groove may lead to superior extension of degenerative changes in the rotator interval 7 18 20. Potential causes of pulley lesions include a congenital rotator interval defect 23 a supratubercular ridge as an osseous protrusion of the lesser tuberosity 24 or a shallow groove 5. Glenohumeral capsular edema is noted. Shoulder anatomy mri normal anatomy variants and checklist robin smithuis and henk jan van der woude.
The translucent screw can be seen at mri. Biceps long head tendon tear with extension or retraction inferior to the bicipital groove is demonstrated. Focal partial tears involving the portion of the tendon adjacent to the entrance to the intertubercular groove termed bicipital groove entrance lesions can be very subtle on both mri and during arthroscopic inspection because of their location at or within one centimeter of the groove entrance. Biceps tendinitis is a disorder of the tendon around the long head of the biceps muscle.
Lateral downsloping or low lying acromion w respect to clavicle coronal ac degen arthrosis capsular hypertrophy inf spurring mass effect on musculotend jct geyser synovial cyst cal coracoacromial ligament hypertrophy sagittal mimics inferior acromial spur. Shoulder mri osseous outlet acromion. Mri helps define other associated shoulder pathologies and in the setting of lhbt instability particular attention should be given to evaluating for concomitant subscapularis injury. Supraspinatus full thickness tear with retraction nearly to the level of the ac joint is demonstrated at least 4cm retraction.