Rotator cuff repair with bioabsorbable screws: An in vivo and ex vivo investigation

Comparison of ultrasonic suture welding and traditional knot tying in a rabbit rotator cuff repair model

“…1,11,15,32,37 Our study was designed to characterize an innovative arthroscopic technology in an in vivo model so that we might be able to determine whether the suture anchor, suture material, or suture fixation methods interfere with tendon-to-bone healing. We submit that fixation devices should withstand a minimum amount of load, but it is the healing of the tendon-to-bone interface and ongoing remodeling process that will determine the effectiveness of the repair.…”

Rotator cuff repair: A biomechanical ex vivo ovine study

“…However, it seems that in degenerated humans, rotator cuff fibers lose their orientation and their appearance approximates more to the sheep model. 10,20 It is well shown that ovine shoulder in mature sheep of 2-3 years old has many similarities to human shoulder. Further to shape and anatomy, infraspinatus tendon has about the same thickness and direction of fibers when compared to human rotator cuff.…”

Three-Dimensional Evaluation of Cyclic Displacement in Single-Row and Double-Row Rotator Cuff Reconstructions Under Static External Rotation

“…The humerus was clamped in a custom-made fixation device with the supraspinatus tendon pulled at 135°to the humeral shaft to imitate the physiological pull of the tendon as previously described. 15 External rotation was set at 20°in all tested specimens to simulate a small external rotation component that might occur during physical therapy in the early postoperative period after rotator cuff repair. Two 1.5-mm steel pins and a goniometer were used to determine the external rotation.…”