scapular abduction

scap·u·lar ab·duc·tion

(skap'yū-lăr ab-dŭk'shŭn)
Forward movement of the scapula.
References in periodicals archive ?
Both the 42 mm Grammont and 42 mm Equinoxe[R] rTSA prostheses significantly decreased the mean force required by the infraspinatus, teres minor, total posterior cuff, and pectoralis major muscles and also significantly decreased the mean joint reaction force during scapular abduction with the elbow flexed to 90[degrees] relative to the native joint with a rotator cuff tear (supraspinatus), (Table 1).
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).
25-27) This cadaveric shoulder controller study provides biomechanical data that recommends avoiding the repair to reduce the forces required by the shoulder muscles during scapular abduction with the elbow flexed.
Caption: Figure 2 Comparison of deltoid force requirements during scapular abduction with the elbow flexed to 90[degrees].
6-14) In this study, we quantified the abductor moment arms of the anterior, middle, and posterior heads of the deltoid during scapular abduction for the normal anatomic shoulder, the 36 mm Grammont Delta III (Depuy, Inc.
The abductor moment arms for the anterior, middle, and posterior heads of the deltoid for each glenosphere geometry and the normal anatomic shoulder during scapular abduction from 0[degrees] to 140[degrees] are presented in Figures 3, 4, and 5, respectively.
Caption: Figure 3 Comparison of anterior deltoid moment arms during scapular abduction from 0[degrees] to 140[degrees].
Caption: Figure 4 Comparison of middle deltoid moment arms during scapular abduction from 0[degrees] to 140[degrees].
Table 3 presents the deltoid wrapping of each prosthesis design when the arm is at the side and also the average muscle lengths during scapular abduction.
4 mm Table 3 Deltoid Wrapping and Average Change in Muscle Tension for Each Reverse Shoulder Relative to Normal Anatomic Shoulder during Scapular Abduction Deltoid Ant Mid Wrapping Deltoid Deltoid Angle Normal Shoulder 48[degrees] 0.
During scapular abduction with a fixed scapula, superior impingement was noted due to greater tuberosity contact with the acromion, coracoid, or both (where the average range of motion for the non-offset rTSA and offset rTSA was observed to be 15[degrees] to 67[degrees] and 15[degrees] to 63[degrees], respectively).