New knee implant helps patients forget they have a fake joint

NCT ID NCT02501733

Completed Disease control Sponsor: Medacta USA Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how well a specific knee replacement, the Medacta GMK Sphere, works over time. Researchers measured how often patients forgot about their artificial knee in daily life, two and five years after surgery. The study involved 260 adults with osteoarthritis who needed a total knee replacement. The goal was to see if this implant helps people move and feel better long-term.

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Conditions

The condition(s) this trial relates to.

avascular necrosis osteoarthritis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

OSTEOARTHRITIS

Contacts and locations

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Locations

McBride Orthopedic Hospital

Oklahoma City, Oklahoma, 73103, United States
Norhtwestern University

Chicago, Illinois, 60611, United States
Spokane Joint Replacement Center

Spokane, Washington, 99218, United States
Texas Orthopedics

Austin, Texas, 78759, United States
Tulane University

New Orleans, Louisiana, 70112, United States