IMPLANT REGISTRIES FLAWED? MURRAY V. LEWALLEN (Orthopedics This Week)
The data proves that registries cannot compare implant designs!” says David Murray. “Going to single surgeon or institutional efforts allow large numbers of patients to be studied very quickly,” says David Lewallen. “What registry studies really do is allow us to ask interesting questions and perhaps direct the next studies.”
This week’s Orthopaedic Crossfire® debate is “The Stuff of Implant Registries: Of Limited Value.” For the proposition is David Murray, M.D., F.R.C.S. from Nuffield Orthopaedic Centre in Oxford, UK; against the proposition is David G. Lewallen, M.D. from Mayo Clinic in Rochester, Minnesota. Moderating is Robert T. Trousdale, M.D. from Mayo Clinic in Rochester.
Mr. Murray: “Registries exist for three main reasons: to compare different types of joint replacement, to compare implant designs, and to provide an early warning for poor implant designs. The primary endpoint for these comparisons is revision.”
“How reliable is this information? I’ll give some examples from unicompartmental knee replacement. Data from a regional registry in the UK—the Trent Registry—showed 10 different total knees foll...
