Background: Unicompartmental knee arthroplasty (UKA) is a well established method for the treatment of single compartment arthritis; however, a subset of patients still present with continued pain after their procedure in the setting of a normal radiographic examination. This study investigates the effectiveness of magnetic resonance imaging (MRI) in guiding the diagnosis of the painful unicompartmental knee arthroplasty.
Methods: An IRB-approved retrospective review identified 300 consecutive UKAs performed over a three years period with 28 cases of symptomatic UKA (nine percent) with normal radiographic images.
Results: MRI examination was instrumental in finding a diagnosis that went undetected on radiographs. Based on MRI findings, 10 (36%) patients underwent surgery whilst 18 (64%) were treated conservatively.
Conclusion: This study supports the use of MRI as a valuable imaging modality for managing symptomatic unicompartmental knee arthroplasty.
Level Of Evidence: Case series.
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| http://dx.doi.org/10.1016/j.knee.2015.03.007 | DOI Listing |
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