Summary: Patients with bipolar chondral lesions seen at the time of hip arthroscopy are at increased risk for conversion to total hip arthroplasty within two years.

Background

Surgical indications for hip arthroscopy continue to evolve in an effort to optimize long term survivorship and durability. Radiographic joint space narrowing less than 2mm is a well-established risk factor for conversion to total hip arthroplasty (THA) after hip arthroscopy; however, it is unclear why some patients convert early to THA compared to others. The purpose of this study was to determine which factors differentiate those patients who convert to THA within 2 years of hip arthroscopy compared to those who convert later than 2 years.

Methods

Included in this study were patients who underwent conversion to THA within two years of primary hip arthroscopy from a prospectively-collected patient registry from 2007 to 2017. Patients who underwent early conversions to arthroplasty were matched 1:1 with patients who converted after two years, based upon age and gender. Preoperatively outcome scores were collected including Short Form-12, modified Harris Hip Score, and Hip Outcome Score. Additionally, variables from the preoperative radiographic evaluation, surgical findings, and procedures performed were also compared.

Results

Forty-nine patients were included in the early conversion group and were matched with forty-nine patients in the later conversion group. Patients with lateral center edge angle of less than 25° were more likely to be in the early failure group [OR: 3.9;95%CI: 1.01 to 15]. Patients with unipolar chondral defects on either the femoral (p = 0.128) or acetabular side (p = 0.656) were not at increased odds for early conversion compared to later conversion; however, those with bipolar chondral lesions at the time of surgery had increased odds of early conversions [OR:3.3; 95%CI:1.4 to 8] (p=0.01). Neither microfracture treatment (p = 0.666), labral reconstruction (p = 0.07), labral debridement (p = 0.298), preoperative intraarticular injection (p = 0.598), nor preoperative patient reported outcome measures were associated with early conversion.

Conclusions

Patients with low lateral center edge angles or bipolar chondral lesions seen at the time of hip arthroscopy are at increased risk for conversion to total hip arthroplasty within two years. Imaging modalities to more reliably and accurately predict these intraoperative findings are necessary to prevent unsuccessful surgeries.

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“X-Square” Technique For Radial Meniscal Root Tear ePoster Presentation Winyou Ratanachai, MD.M Ch(Orth)., THAILAND Keerati Klinchanhom, MD, THAILAND
Surgical Treatment of High-Grade Acute Intramuscular Hamstring Tendon Injuries in Athletes ePoster Presentation Randeep Singh Aujla, MBChB ChM FRCS (Tr&Orth) MFSEM, UNITED KINGDOM Steven Cecchi, BSc (Hons), MBBS, AUSTRALIA Peter Alberto D'Alessandro, MBBS Hons. (UWA) FRACS FAOrthA, AUSTRALIA Peter T. Annear, FRACS(Orth), AUSTRALIA
Characterizing the Incidence of Avascular Necrosis after Corticosteroid Injections of the Hip Abstract Presentation 5 minutes Nathan Varady, MD, MBA, UNITED STATES Paul F Abraham, BS, UNITED STATES Ahab Chopra, BA, UNITED STATES Michael Peter Kucharik, BS, UNITED STATES Wendy Madeline Meek, BBA, UNITED STATES Christopher T Eberlin, BS, UNITED STATES David Freccero, MD, UNITED STATES Eric L. Smith, MD, UNITED STATES Scott D Martin, MD, UNITED STATES
Persistent Post-Operative Opioid Use Following Hip Arthroscopy Is Common And Is Associated With Pre-Operative Opioid Use And Age ePoster Presentation Ryan M. Degen, MD, FRCSC, CANADA J. Andrew McClure, MSc, CANADA Britney Le, MSc, CANADA Blayne Welk, MD, CANADA Jacquelyn Marsh, PhD, CANADA
Superior Outcomes With Routine Capsular Repair In Hip Arthroscopy Abstract Presentation 5 minutes Austin M Looney, MD, UNITED STATES Spencer M Comfort, BS, UNITED STATES Patrick T Connolly, BS, UNITED STATES Julia E McCann, MD, UNITED STATES Andrew Curley, MD, UNITED STATES William F. Postma, MD, UNITED STATES
Outcome Measures After Proximal Hamstring Repair: A Systematic Review ePoster Presentation Tara Reza, MPH, UNITED STATES Andre Gordon Perez-Chaumont, BS, UNITED STATES Andrew J Hinkle, BS, UNITED STATES Symone M Brown, MPH, UNITED STATES Mary K. Mulcahey, MD, UNITED STATES
Hip Arthroscopic Portals:A New Approach Through Accessory Portals Established Within 3Cm Around Anterolateral Portal ePoster Presentation Kiran Kumar Shah, MD, NEPAL
Endoscopic Shelf Acetabuloplasty Concomitant With Labral Repair, Cam Osteoplasty, And Capsular Plication For Treating Artistic Dancers In The Setting Of Acetabular Dysplasia: A Case Series Abstract Presentation 4 minutes Soshi Uchida, MD, PhD, JAPAN Yoichi Murata, MD, JAPAN Hajime Utsunomiya, MD, PhD, JAPAN Tsukamoto Manabu, MD, PhD, JAPAN Akihisa Hatakeyama, MD, JAPAN Shiho Kanezaki, MD, PhD, JAPAN Akinori Sakai, MD, PhD, JAPAN
Assessing The Risk Of Osteoarthritis Progression And Femoral Head Collapse Following Hip Corticosteroid/Anesthetic Injection Abstract Presentation 5 minutes Paul F Abraham, BS, UNITED STATES Nathan Varady, MD, MBA, UNITED STATES Kirstin Small, MD, UNITED STATES Nehal Shah, MD, UNITED STATES Luis S Beltran, MD, UNITED STATES Michael Peter Kucharik, BS, UNITED STATES Christopher T Eberlin, BS, UNITED STATES Wendy Madeline Meek, BBA, UNITED STATES Scott D Martin, MD, UNITED STATES
Efficacy Of Enoxaparin As A Thromboprophylactic Agent In Major Lower Limb Orthopedic Surgeries. ePoster Presentation Raghavendra Raju, MBBS,MS, INDIA Prasad Soraganvi, MBBS, MS, DNB, MRCS, SICOT-dip, INDIA
The Surgeon Mentor Program: Outcomes of Total Hip Arthroplasty via the Direct Anterior Approach ePoster Presentation Christopher J. Wilson, A/Prof, MBChB, MRCS, FRACS, PhD, AUSTRALIA Melinda Jiang, MD, AUSTRALIA Mark Inglis, FRACS BMBS B Med Sci FOrthoA, AUSTRALIA David Morris, MD, AUSTRALIA Nathan Eardley-Harris , MBBS, MClinSc, AUSTRALIA
Covid Mortality Among Neck Of Femur Fractures During The Pandemic 2019 Abstract Presentation 5 minutes Aashish Raghu, MBBS, MS, MRCS, FRCS (Tr & Orth), UNITED KINGDOM Anas Hassan, MBBS, MRCS, UNITED KINGDOM Nicholas Dr Roeck, MB ChB, FRCS (ENG), FRCS (Tr&Orth), UNITED KINGDOM Mohamed Antar, MBBS, Master of Orthopaedics, MRCS, UNITED KINGDOM
Biomechanical Assessment of the Risk of Hip Injury During A 2,000m Ergometer Row Test Abstract Presentation 5 minutes Jordan Page Ankersen, BS, UNITED STATES Stephanie S Gardner, MD, UNITED STATES Bradley S Lambert, PhD, UNITED STATES Joshua D Harris, MD, UNITED STATES Patrick C. McCulloch, MD, UNITED STATES Michael R Moreno, PhD, UNITED STATES Shari Liberman, MD, UNITED STATES
A Prospective Comparison Of Groin-Related Complications Following Hip Arthroscopy With Versus Without A Perineal Post ePoster Presentation Iciar M Davila Castrodad, MD, UNITED STATES Matthew J. Kraeutler, MD, UNITED STATES Omer Mei-Dan, MD, UNITED STATES Anthony Scillia, UNITED STATES
Are Femoral And Tibial Derotation Osteotomies Effective In Improving Hip And Knee Pain And Function? Abstract Presentation 5 minutes Vitali Goriainov, FRCS (Orth), BM, PhD, MSc, UNITED KINGDOM Mohamed Zubair Farook, MBBS, D.Ortho, FRCS (Orth), UNITED KINGDOM Rajiv Kaila, MRCS, MSc, MFSEM(UK), FEBOT, UNITED KINGDOM Tom CB Pollard, MD, FRCS (Tr & Orth), UNITED KINGDOM Antonio J. M. D. Andrade, MB BS, M.Sc., FRCS(Tr&Orth), UNITED KINGDOM

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Risk Factors For Early Conversion To Hip Arthroplasty Following Hip Arthroscopy: A Matched Cohort Analysis

Risk Factors For Early Conversion To Hip Arthroplasty Following Hip Arthroscopy: A Matched Cohort Analysis

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Risk Factors For Early Conversion To Hip Arthroplasty Following Hip Arthroscopy: A Matched Cohort Analysis

Risk Factors For Early Conversion To Hip Arthroplasty Following Hip Arthroscopy: A Matched Cohort Analysis

Background

Methods

Results

Conclusions

More ISAKOS 2021: Global Content