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Placing Knotless Suture Anchor through Mid-Glenoid Portal


Procedure Outline

  1. The mid-glenoid portal/anterior-inferior portal should be made approximately 1 cm lateral from the joint line of the humeral head and just superior to the subscapularis through the rotator interval. Portal placement is guided by the preliminary placement of an 18 g spinal needle to ensure the trajectory of the portal is correct.
  2. Portal placement avoids injury to the labrum and should be determined after assessing both the thickness of the local soft tissues and the size of the relevant bony architecture.
  1. The drill hole for the knotless anchor should be drilled approximately 1-2 mm onto the face, or from the cliff, of the glenoid.
  2. The drill can be malleted down lightly to hold the drill in place while drilling anchor holes.
  1. The labral tape is passed a short distance through the eyelet of the knotless fixation device before the construct is inserted into the glenoid.
  2. The flatter, non-cylindrical labral tape provides a flat construct that wraps around the labrum to reaffix it to the face of the glenoid .
  1. A hemostat can be used to hold the tape as it is placed into the drill hole, and a mallet is used to drive the interference portion of the plastic implant to a marked depth on the percutaneous insertion device denoted by a black line.
  2. Once the suture anchor is securely affixed, the insertion device is unloaded and pulled out of the portal with 6 counter-clockwise turns.