2025 ISAKOS Biennial Congress ePoster
Short-Term Outcomes Of Hip Arthroscopy In Underweight Patients
Roger Quesada Jimenez, MD, Des Plaines, Illinois UNITED STATES
Jessica C. Keane, BS, Des Plaines, IL UNITED STATES
Ady Haim Kahana Rojkind, MD, Des Plaines, IL UNITED STATES
Yasemin E. Kingham, BA, Des Plaines, IL UNITED STATES
Matthew J. Strok, BA, Des Plaines, IL UNITED STATES
Benjamin G. Domb, MD, Des Plaines, Illinois UNITED STATES
American Hip Institute Research Foundation, Des Plaines, Illinois, UNITED STATES
FDA Status Cleared
Summary
Hip arthroscopy for the treatment of FAI and labral tear in underweight patients yielded significant short-term PROs improvements, which were equivalent to a benchmark matched control group of normal-weight patients.
Abstract
Purpose
(1) To report minimum 2-year outcomes of underweight patients who underwent primary hip arthroscopy for femoroacetabular impingement (FAI) and labral tears. (2) To compare these results with a propensity-matched control group of patients with normal weight.
Methods
Data was retrospectively analyzed for patients who underwent primary hip arthroscopy as treatment for FAI and labral tears between August of 2009 and January of 2022 with a body mass index (BMI) ≤18.5 kg/m2. Included patients had complete pre- and postoperative patient reported outcomes (PROs) and visual analog scale for pain (VAS) at minimum 2-years follow-up. Clinical important thresholds for hip arthroscopy, revision surgery and conversion to total hip arthroplasty (THA) rates were included. Patients were propensity matched to a control group of normal weight patients (BMI 18.5-24.99 kg/m2) in a 1:2 ratio based on sex, age at surgery, Acetabular Outerbridge Grade, labral treatment, and capsular treatment.
Results
234 patients were included. Underweight patients displayed significant improvements across all PROs and high patient satisfaction. When compared to a control group, similar magnitudes of improvement were observed at minimum 2-year follow-up for modified Harris Hip Score (mHHS), Nonarthritic Hip Score (NAHS), International Hip Outcome Tool-12 (iHOT-12), and VAS. The study cohort had a lower magnitude of improvement for the Hip Outcome Score-Sports-Specific Subscale (HOS-SSS) (p < 0.05). The study group reached Patient Acceptable Symptom State (PASS) for HOS-SSS at lower rates. Importantly underweight patients had a higher frequency of revision hip arthroscopy with a relative risk of 2.16 (p < 0.05).
Conclusion
Hip arthroscopy for the treatment of FAI and labral tear in underweight patients yielded significant short-term PROs improvements, which were equivalent to a benchmark matched control group of normal-weight patients. However, underweight patients had a 2.16-fold increased relative risk for revision hip arthroscopy. Underweight patients may benefit from preoperative nutritional evaluation.