JointMedica Begins IDE Study of Polymotion Hip Resurfacing System

JointMedica began an investigational device exemption (IDE) study for its Polymotion Hip Resurfacing (PHR) device. The IDE study plans to assess Polymotion to address challenges faced by younger, more active patients.

PHR conserves bone by removing less of the femoral head than conventional hip replacement, reshaping it to accommodate a metal cap that mimics the natural anatomy. A cup composed of Vitamin E polyethylene with a titanium coating is implanted into the patient’s acetabulum, which comes in a comprehensive range of sizes to accommodate most patients.

Both components were designed for permanent implantation to achieve reconstructive functional hip joint replacement. The PHR system seeks to provide benefits over total hip arthroplasties (THAs) like bone conservation and restoring more natural biomechanics—without a metal-on-metal articulating surface.

The IDE study launched at seven clinical sites:

• Mr. Ronan Treacy and Dr. Will Peckett—King Edward VII (Bermuda)
• Dr. Thomas Gross and Dr. Coleman Fowble—Midlands Orthopaedics & Neurosurgery (Columbia, S.C.)
• Dr. Stephen Raterman—Florida Medical Clinic Orlando Health (Tampa, Fla.)
• Dr. William Macaulay, Dr. Scott Marwin, and Dr. Matthew Hepinstall—NYU Langone (New York, N.Y.)
• Dr. Craig Della Valle—Rush University Medical Center (Chicago, Ill.)
• Dr. Michael Mont, Dr. Ronald Delanois, and Dr. James Nace—Sinai Hospital (Baltimore, Md.)
• Dr. Anthony Carter—Hampton Roads Orthopaedics (Newport News, Va.)

“Previously, some patients have shied away from hip resurfacing, fearful of metal wear debris. The Polymotion implant has a metal-on-plastic bearing rather than a metal-on-metal bearing,” said Dr. Gross. “Women have often been denied a metal-on-metal hip resurfacing operation because they may be more sensitive to metal wear debris. We are encouraged that more patients may now have an alternative to traditional hip replacement surgery.”

“These clinical investigations are crucial to evaluating the safety and effectiveness of the Polymotion system,” said Dr. Sharat Kusuma, president at JointMedica. “We are honored to collaborate with such renowned surgeons who bring unparalleled expertise to this study,”.