Background: Failure of hip arthroscopy procedures and the need for subsequent total hip arthroplasty (THA) have been estimated to be as high as 16%. Prior literature has shown that failed ipsilateral knee arthroscopy may have a negative impact on the functional outcome of subsequent total knee arthroplasty. To date, there is limited information regarding the impact of failed hip arthroscopy on the clinical outcomes of subsequent primary THA.
Purpose: To compare clinical outcomes in primary THA between patients with and without prior arthroscopic hip surgery.
Study design: Cohort study; Level of evidence, 3.
Methods: Patients undergoing primary THA with a history of ipsilateral hip arthroscopy were matched and compared in a 1:2 manner with patients undergoing primary THA without a history of hip arthroscopy. Patient-reported clinical outcomes were measured with the modified Harris Hip Score, the University of California-Los Angeles Activity Score, and 3 subscales from the Western Ontario and McMaster Universities Osteoarthritis Index (Pain, Stiffness, and Physical Function).
Results: At a mean follow-up of 42 months, there was no significant difference in any of the outcome measures between the 58 study hips and 116 matched controls. Additionally, both groups exhibited an absolute change in outcome scores that exceeded the minimum clinically important difference.
Conclusion: Prior ipsilateral arthroscopic hip surgery does not adversely affect the clinical outcome of subsequent THA.
Keywords: clinical outcomes; function; hip arthroscopy; total hip arthroplasty.
Conflict of interest statement
One or more of the authors has declared the following potential conflict of interest or source of funding: This study was supported by the Curing Hip Disease Fund. J.A.H. has received educational support from Smith & Nephew. J.J.N. is a consultant for Ceterix Orthopaedics, Smith & Nephew, and Zimmer; is a paid speaker/presenter for the Pediatric Research in Sports Medicine Society and Zimmer; receives research support from Zimmer and Smith & Nephew; and has received educational support from Elite Orthopedics. R.M.N. has received research support from Biomet, DePuy, Medical Compression Systems, Smith & Nephew, and Stryker; consulting fees from Biocomposites, Blue Belt Technologies, Cardinal Health, DePuy, Ethicon, Halyard Health, Medical Compression Systems, Medtronic, Microport, Mirus, Smith & Nephew, and St Jude Medical; educational support from Arthrex and Elite Orthopedics; nonconsulting fees from Zimmer Biomet; royalties from Microport; and hospitality payments from Pacira Pharmaceuticals. J.C.C. receives research support from Smith & Nephew and Zimmer, is a consultant for Microport Orthopedics, and receives royalties from Wolters Kluwer Health–Lippincott Williams & Wilkins. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto.
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