Periprosthetic Knee Infection — One-stage Versus Two-stage Revision of the Infected Knee Arthroplasty
Citation(s)
Baker P, Petheram TG, Kurtz S, Konttinen YT, Gregg P, Deehan D Patient reported outcome measures after revision of the infected TKR: comparison of single versus two-stage revision. Knee Surg Sports Traumatol Arthrosc. 2013 Dec;21(12):2713-20. doi: 10.1007/s00167-012-2090-7. Epub 2012 Jun 13.
Haddad FS, Sukeik M, Alazzawi S Is single-stage revision according to a strict protocol effective in treatment of chronic knee arthroplasty infections? Clin Orthop Relat Res. 2015 Jan;473(1):8-14. doi: 10.1007/s11999-014-3721-8.
Singer J, Merz A, Frommelt L, Fink B High rate of infection control with one-stage revision of septic knee prostheses excluding MRSA and MRSE. Clin Orthop Relat Res. 2012 May;470(5):1461-71. doi: 10.1007/s11999-011-2174-6. Epub 2011 Nov 12.
One-stage Versus Two-stage Revision of the Infected Knee Arthroplasty. A Randomized Controlled Multicenter Trial.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
