Matthew Smith, MD and Ferris Pfeiffer, PhD

Principal Investigators

Matthew Smith, MD

Department of Orthopaedic Surgery

Ferris Pfeiffer, PhD

Department of Orthopaedic Surgery and Department of Bioengineering

Matthew Smith, MD, (left)
and Ferris Pfeiffer, PhD

A bone-tendon allograft system optimizing tissue healing and biomechanical strength for human rotator cuff repair

Approximately 600,000 rotator cuff repair procedures are done per year in the United States of which, massive rotator cuff tears account for nearly 30%. The current standard of care for rotator cuff repair is tendon to bone suture repair. However, during massive tears, the resulting tendon quality is not sufficient to allow repair. Many factors are associated with poor outcomes, including tendon retraction, muscle atrophy and fatty degradation, poor tissue quality and difficulties to suture tendon fibers. A failure rate of up to 94% is seen in current massive tendon repairs.

The PIs have developed a system which provides and bone tendon allograft to be deployed arthroscopically to repair the tear. The system prepares a recipient channel to interface with a novel allograft design that optimizes tissue healing and integration as well as biomechanical strength.