ePoster #748 - ISHA Annual Scientific Meeting 2016

Outcomes Following Bilateral Hip Arthroscopy For Femoroacetabular Impingement: An Age, Gender, And Bmi Matched Cohort Compared To Unilateral Surgery

Benjamin Kuhns, MD, Chicago, IL UNITED STATES
Charles P. Hannon, MD, Chicago, IL UNITED STATES
Eric Makhni, MD, Chicago, IL UNITED STATES
Jennifer Alter, BS, Chicago, IL UNITED STATES
Richard C. Mather, MD, MBA, Durham, NC UNITED STATES
Shane J. Nho, MD, MS, Chicago, IL UNITED STATES
Gift C. Ukwuani, MD, Chicago, IL UNITED STATES

Rush University Medical Center, Chicago, Illinois, UNITED STATES

FDA Status Not Applicable

Summary: We present data comparing outcomes between patients who underwent bilateral hip arthroscopy to to patients who underwent unilateral surgery.

Abstract:
Introduction: There is a lack of evidence regarding outcomes following hip arthroscopy in patients with bilateral femoracetabular impingement. The goal of this study is to document short-term outcomes in patients following staged, bilateral surgery. We hypothesize that outcomes after bilateral hip arthroscopy will be similar to patients with unilateral disease and surgery. Methods: All patients who underwent staged, bilateral arthroscopic surgery for femoracetabular impingement at our institution between 1/4/2012 and 3/27/2014 with two year follow-up were included in this retrospective review of prospectively gathered data. The primary outcome measures were the Hip Outcome Score Activities of Daily Living (HOS-ADL) and Sports Subscale (HOS-SS), Modified Harris Hip Score (MHHS), and outcomes such as VAS pain and satisfaction. Patients were age- and gender-matched with a cohort of control patients undergoing unilateral surgery in a 2:1 fashion. Results: A total of 45 patients had bilateral hip arthroscopies in this cohort; 43 patients had full two-year follow-up data recorded (93%). The average time until the second hip arthroscopy was 6.1 ± 4.3 months. There were 24 (56%) females in the study population, with an average age of 28.0 ± 10.8 and average BMI of 24.7 ± 5.5. There were no statistically significant differences between study patients and matched control patients (n=86) according to age, gender, BMI, Tonnis grade, joint space width, or smoking status. All groups demonstrated significant improvements in the HOS-ADL, HOS-SS and MHHS surveys from preoperative scores (p<0.001 for all). The amount of improvement in MHHS (12.1 versus 21.0) and VAS pain (4.8 versus 6.3) were less in bilateral patients compared to control patients (p=0.006 and 0.01, respectively). There were similar improvements in both groups in HOS-ADL, HOS-SS, and patient satisfaction following surgery. A longer time to the second surgery was associated with decreased two year HOS-ADL scores (r=0.33; p=0.03), MHHS scores, (r=0.32; p=0.04), and pain improvement (r=0.59; p=0.0008), but not HOS-ADL scores or patient satisfaction. Conclusion: Patients undergoing bilateral hip arthroscopy for FAI experience significant improvement in all patient reported outcomes, but the improvement in MHHS and VAS is less than patients undergoing unilateral hip arthroscopy.