Boye, Gloria N.Murray, KerriClohisy, John C.Kim, Young-Jo2016-01-042015Boye, Gloria N., Kerri Murray, John C. Clohisy, and Young-Jo Kim. 2015. “Feasibility of a Randomized Clinical Trial for Treatment of Femoroacetabular Impingement of the Hip.” Orthopaedic Journal of Sports Medicine 3 (7): 2325967115592844. doi:10.1177/2325967115592844. http://dx.doi.org/10.1177/2325967115592844.2325-9671http://nrs.harvard.edu/urn-3:HUL.InstRepos:23993593Background: Symptomatic femoroacetabular impingement (FAI) is currently corrected by surgery. However, it is possible that nonsurgical treatment could resolve symptomatic FAI in some patients; thus, uncertainty about the necessity of surgical treatment exists. The current equipoise concerning FAI treatment presents an opportunity to conduct a randomized controlled trial (RCT) of surgical and nonsurgical treatment options. Given the unique challenge of adequate patient enrollment in RCTs, it is important that a preliminary study is done to appraise the feasibility of conducting an RCT. Purpose: To estimate enrollment rates of a planned future RCT to compare surgical and nonsurgical treatments for symptomatic FAI and to identify factors associated with patients’ willingness to participate in the randomized trial. Study Design: Cross-sectional study; Level of evidence, 4. Methods: Patients diagnosed with FAI at 2 orthopaedic centers were presented with a hypothetical randomized trial comparing 2 treatment options for FAI. All patients completed forms providing information regarding their willingness to participate and treatment preferences. Results: A total of 75 patients participated in the study: 53 and 22 from 2 centers, respectively. Twenty-eight percent indicated absolute willingness to participate in the trial, 40% were probably willing or unsure, and 32% were definitely not willing; 18.7% had a strong preference for surgery while 2.7% strongly preferred nonsurgical treatment. The majority (78.6%) had no strong preference for either treatment arm. There were correlations between treatment preferences and willingness to participate. Patients with a strong treatment preference and/or a preference for surgery were less likely to be willing to participate. Conclusion: The study findings suggest that sufficient patient accrual for a randomized trial of FAI treatment is currently feasible while equipoise still exists among patients and surgeons.en-USfemoroacetabular impingement (FAI)randomized clinical trialfeasibility studysurgical treatmentnonsurgical treatmentJournal Article2016-01-0410.1177/2325967115592844