Hip Arthroscopy After Total Hip Arthroplasty Is Rare (0.04%) and May be Contralateral

Abstract

PurposeThe purpose of this study was to determine the patient demographics and incidence of hip arthroscopy after total hip arthroplasty using the PearlDiver database. MethodsThis is a retrospective study of patients undergoing total hip arthroplasty and arthroscopic hip surgery. The PearlDiver Claims Database was queried using CPT codes for records from 2010-2021. Inclusion criteria were presence of a hip arthroplasty CPT code, followed by a hip arthroscopy CPT code. Additional data collected included age, gender, and time between surgeries. A sub-analysis for ICD9/10 codes was completed to estimate association with iliopsoas tendinitis. ResultsQuery of the database showed that 314 patients had a hip arthroscopy code after a hip arthroplasty code. 0.04% of patientswho underwent arthroplasty subsequently underwent arthroscopy. 63.4% were female. Mean age was 58.2 ± 12.2 years at time of arthroscopy. 214 (72.3%) patients had a CPT code for synovectomy, 56 (18.9%) for loose body removal, and 44 (15.3%) for diagnostic arthroscopy. The mean time from arthroplasty code to arthroscopy code was 2.5 ± 2.0 years. 105 patients (33.4%) also had an ICD 10 diagnosis code for iliopsoas tendinitis and 116 (36.9.0%) had the ICD 9 code for enthesopathy of hip. ConclusionIn this limited study, we found that hip arthroscopy after hip arthroplasty is uncommon but occurs more frequently in female patients, is undertaken in a broad age range of patients, and is often associated with a diagnosis of iliopsoas or hip tendinitis. Level of Evidence: Level IV, Retrospective Case Series