This controlled cadaveric study compared arthroscopic single-row rotator cuff repair against three double-row configurations (diamond, mattress double anchor, modified mattress double anchor). It measured load to failure, cyclic displacement, and restored supraspinatus footprint for each technique. The goal was to test whether double-row fixation is mechanically superior and restores more native footprint.
The core teaching point: for a small-to-medium supraspinatus tear, adding a medial row does not make your construct mechanically stronger on the day of surgery. With current double-loaded anchors and high-strength suture, a single-row simple-suture repair already reaches ~287 N, clearing the 250 N bar for early passive motion.
Where double-row wins is footprint. It restores ~15-16 mm of width and near-native contact area, while single-row covers only about half. The authors' argument is biological, not mechanical: more tendon-bone contact may improve healing, but this study did not prove it.
Remember the failure mode. Repairs fail by suture pulling through tendon, not by anchor pullout, so tendon quality and stitch grasp matter more than anchor count. Context for boards: Galatz reported an 89% retear rate after arthroscopic repair of large/massive tears, which is why footprint and healing biology remain debated.
This controlled cadaveric study compared arthroscopic single-row rotator cuff repair against three double-row configurations (diamond, mattress double anchor, modified mattress double anchor). It measured load to failure, cyclic displacement, and restored supraspinatus footprint for each technique. The goal was to test whether double-row fixation is mechanically superior and restores more native footprint.
The core teaching point: for a small-to-medium supraspinatus tear, adding a medial row does not make your construct mechanically stronger on the day of surgery. With current double-loaded anchors and high-strength suture, a single-row simple-suture repair already reaches ~287 N, clearing the 250 N bar for early passive motion.
Where double-row wins is footprint. It restores ~15-16 mm of width and near-native contact area, while single-row covers only about half. The authors' argument is biological, not mechanical: more tendon-bone contact may improve healing, but this study did not prove it.
Remember the failure mode. Repairs fail by suture pulling through tendon, not by anchor pullout, so tendon quality and stitch grasp matter more than anchor count. Context for boards: Galatz reported an 89% retear rate after arthroscopic repair of large/massive tears, which is why footprint and healing biology remain debated.