Assessing the Outcome of Hip Arthroscopy for Labral Tears in Femoroacetabular Impingement Using the Minimum Dataset of the British Non-arthroplasty Hip Register: A Single-Surgeon Experience.

PURPOSE: The aim of this study was to assess changes in British Non-arthroplasty Hip Register (NAHR) minimum dataset (MDS) patient-reported outcome measures (PROMs) after hip arthroscopy for femoroacetabular impingement (FAI) and define the relation between these and patient satisfaction. Secondary aims included exploring the impact of patient characteristics (age, sex, and social deprivation status) on MDS PROMs and satisfaction and determining the Net Promoter Score for hip arthroscopy for FAI.

METHODS: Preoperative data were collected from the NAHR, and postoperative data were collected through the NAHR, by mail, and by telephone survey. Correlations between satisfaction, International Hip Outcome Tool 12 (iHOT-12), and EQ-5D scores were explored.

RESULTS: A consecutive series of 89 primary hip arthroscopy procedures for FAI in 88 patients is reported. Patients reported improvements in the iHOT-12 score (mean, 34.08; 95% confidence interval [CI], 27.88 to 40.28; P < .001), EQ-5D index score (+0.124; 95% CI, 0.063 to 0.185; P < .001), and EQ-5D visual analog scale (VAS) (+4.49; 95% CI, -1.56 to 10.54; P = .061) after hip arthroscopy for FAI. Satisfaction was predicted by both change in iHOT-12 score (Spearman r [rs ] = 0.54, P < .001) and absolute postoperative iHOT-12 score (rs  = 0.78, P < .001), change in EQ-5D index score (rs  = 0.42, P < .001) and absolute postoperative EQ-5D index score (rs  = 0.70, P < .001), and change in EQ-5D VAS score (rs  = 0.30, P = .012) and absolute postoperative EQ-5D VAS score (rs  = 0.59, P < .001); and the strength of correlation was greater with the absolute postoperative score than with the change in score for all 3. Sex, age, and social deprivation status did not predict postoperative PROMs (P ≥ .15) or satisfaction (P ≥ .32). The postoperative iHOT-12 score correlated strongly with EQ-5D index (rs  = 0.90, P < .001) and EQ-5D VAS (rs  = 0.81, P < .001) scores. The Net Promoter Score for hip arthroscopy for FAI was 70.31.

CONCLUSIONS: This study showed significant improvements in hip-specific function (iHOT-12) and health-related quality of life (EQ-5D), as measured by the NAHR MDS, in patients undergoing hip arthroscopy for FAI. Satisfaction rates were high (75.7%) and correlated strongly with hip-specific and general health PROMs. Satisfied patients were more likely to be willing to undergo similar surgery in the future. Self-reported postoperative hip function correlated very strongly with general health-related quality of life.

LEVEL OF EVIDENCE: Level IV, case series.