ArticleJournal of the American Academy of Orthopaedic Surgeons. Global research & reviews2024
Is Magnetic Resonance Imaging Overused Among Patients Undergoing Total Knee Arthroplasty?
Article in Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionWith increasing healthcare costs, it is important to quantify the number of total knee arthroplasty (TKA) patients who have MRIs that are not considered clinically necessary. The purpose of this study was to determine the number of unnecessary preconsultation MRIs done among TKA patients at our institution.
methodsEight hundred and sixty-nine patients who underwent a primary TKA were identified. Review of medical records and imaging results was conducted to determine which patients had received preconsult MRIs and whether they were necessary or unnecessary.
resultsOf the 869 TKA, 177 (20.4%) presented with a preconsultation MRI, of which, 112 met the study inclusion criteria. Of the 112 MRIs, 18 (20.7%) were done without radiographic imaging, and 69 (79.3%) were completed after radiographically evident moderate-to-severe arthritis. Overall, 87 MRIs (10.0%) were deemed clinically unnecessary.
conclusionsReferring physicians are overusing MRIs before consultation with an orthopaedic surgeon. The 87 patients who had unnecessary MRIs at our institution over a one-year period represented a cost of $20,706. Extrapolating that number to the scale of patients affected by arthritis each year is potentially a staggering amount of money. Evidence-based guidelines should be put into place to optimize healthcare utilization.
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