Stemless shoulder implants are designed to be attached to the humerus without using a stem to stabilize the implant, which requires drilling down into the bone. As younger and more active patients require shoulder replacements, bone preservation is “increasingly critical” to accommodate potential revision procedures in the future, John Sperling, a professor of orthopedic surgery at Mayo Clinic who helped develop the Osseofit system, said in a statement. Mayo Clinic has a financial interest in the technology.

Osseofit is designed to match the natural asymmetry of the humerus, Sperling added. The device features left- or right-sided anchor implants and uses porous metal intended to mimic spongy bone tissue. 

The Osseofit system is available in a singular instrument tray, which Zimmer said should maximize workflow and sterile processes, and could allow it to fit nicely in ambulatory surgery centers (ASCs).