Abstract
Background: Magnetic resonance imaging (MRI) is frequently used in the diagnosis of upper extremity conditions. We hypothesize that the results often do not change treatment. The purpose of the present study was to prospectively assess the extent to which MRI findings alter patient management. Methods: Ten hand surgeons who were ordering an MRI (elbow or distal) completed a standardized questionnaire. Prior to obtaining the MRI, the surgeon recorded their pre-MRI diagnosis and recommended treatment if no MRI could be obtained. Following the MRI, the surgeon recorded their post-MRI diagnosis and ultimate treatment recommendation. Finally, the surgeon answered whether the MRI was helpful, and if so, how it helped guide their treatment. Descriptive statistics were performed. Results: One hundred eighty-seven MRIs were ordered. The most common reasons for ordering an MRI were the evaluation of presumed occult scaphoid fracture, ulnar wrist pain, metacarpophalangeal joint collateral ligament injury, and mass. The surgeon agreed with the radiologist's interpretation of the MRI in 88% of cases. Overall, surgeons found the MRI to be helpful in 92% of cases, and the recommended treatment changed as a result of the MRI findings in 19% (35/187) of patients. Of these 35 patients, 9 had a pre-MRI diagnosis that was concordant with the MRI findings, but the proposed management of the patient changed after the MRI. Conclusions: Hand surgeons infrequently change their treatment plan based on MRI findings. Given the importance of cost-efficient care, indications for use of MRI may need to be re-evaluated.
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