EP8.2 Is There a Difference In Patient Reporting Outcome Measures (PROMs) and Quality of Life (QoL) In Patients Undergoing Total Hip Arthroscopy After A Prior Ipsilatral

Abstract Arthroscopic interventions have been developed for a range of pre-arthritic hip conditions. Sometimes, progressive joint degeneration ensues and joint replacement (THA) becomes necessary. We have investigated whether there is a difference in Patient Reported Outcome Measures (PROMs) and Quality of Life (QoL), after THA, for patients who have undergone a previous ipsilateral hip arthroscopy compared to those who had no prior surgical intervention. A retrospective review of patient electronic records and an outcomes database was undertaken to identify patients who had an ipsilateral arthroscopic procedure and subsequently went on to THA between 2013 and 2020. These patients were propensity matched against patients with no prior surgical intervention. An age, sex, ASA (2:1) matched cohort of primary THAs was used for comparison. The PROMs assessed pre-operatively, a 1 year and 2 years post THA were the Oxford Hip Score (OHS), EQ-5D and EQ-5D Health State. EQ-5D and EQ-5D Health State were also used to measure QoL. Fifteen patients who had undergone a prior ipsilateral arthroscopic surgical intervention were identified. The average interval between hip arthroscopy and THA was 30 months, SD 14 months. The average age at THA was 49.77 years. Pre-operative OHS was 18.67 compared to 17.11 for those with no prior surgical intervention (p-value <0.001). The pre-operative EQ-5D Health State was lower for those who had prior surgical intervention at 50.22 compared to 55.86 (p-value <0.0001). At 1 and 2 years post-operatively, OHS and EQ-5D were comparable with no statistical difference in scores or change over time. However, EQ-5D Health state, at both timepoints, was statistically higher for those patients who had prior arthroscopic intervention (p-value <0.0001). Patients undergoing THA after prior ipsilateral hip arthroscopy can expect the same degree of improvement in PROMs and QoL as those without any prior arthroscopic surgical intervention and a prior arthroscopic intervention does not adversely affect the patient reported outcome of subsequent THA.