Ultrasound Findings- Pathology (Tears) Tendons Partial Full Intra- Thickness Thickness Substance Tendinosis Normal Subscapularis 2 0 0 0 48 (4%) (96%) Supraspinatus 20 9 0 7 14 (40%) (18%) (14%) (28%) Infraspinatus 0 0 0 0 50 (100%) Teres Minor
0 0 0 0 50 (100%) Biceps 0 0 0 3 (6%) 47 (94%) Table 4.
The infraspinatus and teres minor
are most commonly known for their roles as the primary external rotators of the GH joint (11,12).
Repair of the subscapularis with rTSA significantly increased the force required by the posterior deltoid, total deltoid, infraspinatus, teres minor
, total posterior cuff, and pectoralis major muscles and also significantly increased the meanjoint reaction force during scapular abduction with the elbow flexed to 90[degrees] relative to when the subscapularis was not repaired (Table 1).
In association with the posterior humeral circumflex artery the nerve passes back through the quadrilateral space, a small opening formed by teres minor
above, teres major below, long head of biceps medially and the proximal humerus laterally (6,7).
It is strongly recommended that archers incorporate exercises specifically designed to strengthen the supra-spinatus, infraspinatus and teres minor
None of them showed subscapularis or teres minor
4% Posterior Wear Infraspinatus Teres Major Teres Minor
38 mm Standard, No Wear -1.
If an entry point inferior to the teres minor
muscle (through the quadrangular space) is used, other potential risks are contact with the axillary nerve and the posterior humeral circumflex artery.
Eight muscles were simulated as three lines from its origin on the scapula or clavicle to its insertion on the humerus: anterior deltoid (yellow), middle deltoid (dark green), posterior deltoid (magenta), subscapularis (light green), infraspinatus (dark blue), teres major (red), teres minor
(cyan), and the clavicular portion of the pectoralis major (orange) (Fig.
The four rotator cuff muscles (two of them--the infraspinatus and teres minor
, are shown) play key roles in much of this arm movement.
Sub acromial impingement syndrome occurs following the entrapment of the Supraspinatus, Infraspinatus, Teres minor
muscle and biceps tendon, soft tissues and sub acromial bursa between the coracoacromial arch and humeral head  and causes swelling, inflammation and pain in the shoulder.
While muscle transfers have been demonstrated to successfully restore active external rotation, they should not be performed if the teres minor