2023 ISAKOS Biennial Congress ePoster
Patients With Hypoplastic Labra Experienced Increased Rates of Arthroscopic Revision at 5-Year Follow-up
Zachary I Li, BA, New York UNITED STATES
Dhruv S Shankar, BS, New York UNITED STATES
Kinjal Vasavada, BA, New York, New York UNITED STATES
Berkcan Akpinar, MD, West Palm Beach, Florida UNITED STATES
Mohammad Samim, MD, New York, New York UNITED STATES
Christopher J Burke, MD, New York, NY UNITED STATES
Thomas Youm, MD, FACS, New York, NY UNITED STATES
NYU Langone Health, New York, NY, UNITED STATES
FDA Status Not Applicable
Summary
The purpose of this study was to examine the associations between labral width and patient-reported outcomes, clinical threshold achievement rates, and rate of arthroscopic failure among patients who underwent hip arthroscopy and labral repair at minimum 5-year follow-up.
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Abstract
Purpose
To examine the associations between labral width and patient-reported outcomes, clinical threshold achievement rates, and rate of arthroscopic failure among patients who underwent hip arthroscopy and labral repair at minimum 5-year follow-up.
Methods
Patients were identified from a prospective database who underwent primary hip arthroscopy for treatment of labral tears in the setting of FAIS. Modified Harris Hip Score (mHHS) and Nonarthritic Hip Score (NAHS) were recorded preoperatively and at 5-year follow-up. Achievement of the minimal clinically important difference (MCID), substantial clinical benefit (SCB), and patient acceptable symptom state (PASS) were determined using previously established values. Labral width MRI measurements were independently performed by 2 fellowship-trained radiologists at standardized “clockface” locations. Patients were stratified into three groups at each position: lower-width (<½ SD below the mean), middle-width (within ½ SD of the mean), and upper-width (>½ SD above the mean). Multivariable regression was used to evaluate the relationship between labral width and patient-reported outcomes, as well as rate of secondary procedures.
Results
Of 116 identified patients, 73 patients (age: 43.3 ± 12.0 years; 68.5% female) were included. Inter-rater reliability was high at all positions (ICC: 0.94-0.96). At 5-year follow-up, patients reported significant improvement in both mHHS and NAHS (p < 0.001), and most achieved the MCID (91.5%), SCB (81.4%), and PASS (79.7%). Eleven patients (15.1%) underwent revision and four patients (5.5%) converted to THA. Lower-width groups at 11:30 (OR 1.75, p = 0.02) and 3:00 (OR 1.59, p = 0.04) positions demonstrated increased odds of revision within 5 years. Labral width was not associated with 5-year improvement in mHHS/NAHS, achievement of MCID/PASS/SCB, or conversion to THA (p > 0.05).
Conclusion
Patients with hypoplastic labrums experienced an increased rate of arthroscopic revisions. Labral width at any measured position was not associated with 5-year improvement of mHHS, NAHS, achievement of clinical thresholds, or need for arthroplasty.