This python-inspired device could make rotator cuff surgeries more effective

A new device, modeled after a python’s teeth and grip, could double the strength of rotator cuff repairs and prevent retearing after surgery.

Each year, 2 million people in the United States suffer from rotator cuff injuries — but only 600,000 get surgical fixes. A new, python-inspired device might close that gap.

An injury to the rotator cuff — a group of muscles and tendons surrounding the shoulder — can include tears and inflammation that result in pain and limited function. Surgical repairs are meant to fix a torn tendon, often by reattaching it to the head of the arm bone. But sutures, which are anchored at only a few points, can retear the already fragile tendon.

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