Bioaugmentation of Rotator Cuff Repair With an Interpositional Nanofiber Scaffold

Rotator cuff repairs demonstrate variable success, with reported retear rates from 4% to 94%, and the highest retear rates are associated with large and massive tears. Scaffolds are an augmentation strategy for repairs aimed at fortifying healing of the bone-tendon junction by facilitating cellular repopulation and marrow elements at the tendon footprint. The Rotium nanofiber scaffold (Atreon Orthopedics, Columbus, OH) is an interpositional nanofiber scaffold that is compressed between the repaired rotator cuff and the footprint on the greater tuberosity. The bioabsorbable synthetic profile replicates the native tendinous attachment with minimal risk of immunogenicity and with resorption at 3 to 4 months. This article describes a preparation and implantation strategy to augment arthroscopic rotator cuff repair, adding minimal surgical time.