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Comparison Of Pull-Out Strength Following Ligamentum Teres Reconstruction In The Hip: Peek Corkscrew Suture Anchor Versus Cortical Button Fixation: A Cadaveric Study.

Ajay C. Lall, MD, MS, FAAOS, UNITED STATES Hari Krishna Ankem, MD, UNITED STATES Samantha Diulus, BS, UNITED STATES Benjamin G. Domb, MD, UNITED STATES

American Hip Institute Research Foundation, Des Plaines, Illinois, UNITED STATES

2021 Congress Abstract Presentation 5 minutes Not yet rated

Anatomic Location

Hip / Groin / Thigh

Anatomic Structure

Labrum

Treatment / Technique

Repair / Reconstruction Sutures / Knots / Anchors

Diagnosis / Condition

Impingement

Sports Medicine

Biomechanics

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Summary: This cadaveric study highlighted the differences in pullout strength between two methods of graft fixation over the acetabular fossa that are commonly utilized in LT reconstruction.

Background

In recent years, the role of the ligamentum teres (LT) in hip stability has been further explored. Consequently, the consequences of LT tears have also become better understood. LT reconstruction is an appropriate alternative in select cases of full-thickness tears. The technical variations in LT reconstruction fixation at the acetabular fossa are critical to achieve best functional results.

Purpose

The purpose of this study is to compare the pull-out strength of the PEEK corkscrew suture anchor to that of the cortical button fixation for ligamentum teres reconstruction in the hip.

Study design: Cadaveric study

Methods

In eight hip joint specimens, the acetabular socket was prepared after the native ligamentum teres was transected and the femoral head was removed. The pulvinar was excised, to allow for optimal visualization of the cotyloid fossa for placement of the button or anchor fixation device. Eight separate tibialis anterior grafts were then prepared by suturing a running-locking #2 FiberWire (Arthrex, Naples, FL) on each tail of the graft. Specimens were then mounted on a custom jig within a mechanical test frame (MTS Systems, Eden Prairie, MN) to allow for in-line pull of the graft-fixation construct, eliminating any angular or torsional torque. Four specimens were prepared with a suture-button (Arthrex, Naples FL), and the remaining four specimens were prepared with a 3.0-mm knotless, polyether ether ketone (PEEK) Corkscrew anchor (Arthrex, Naples FL). Following the preload, each specimen was loaded to failure at 0.5 mm/s. Stiffness and ultimate pullout force were measured for each specimen construct. Groups were compared statistically using an unpaired two-tailed Student’s t-test, with statistical significance set at p = 0.05.

Results

The suture button type fixation has greater mean pullout strength and required higher load to failure compared to the PEEK corkscrew anchor fixation method (346.0 ± 206.5 N vs. 195.9 ± 50.0 N). There was no significant difference in mean stiffness between the two methods of fixation (21.9 ± 5.4 vs 26.5 ± 5.8 N/mm).

Discussion

This cadaveric study highlighted the differences in pullout strength between two methods of graft fixation that are commonly utilized in LT reconstruction. The suture button type fixation demonstrated greater pullout strength and required a higher load to reach failure compared to the PEEK corkscrew anchor fixation. To our knowledge, this is the first study comparing the different methods of LT reconstruction graft fixation on the acetabular side.

Conclusion

This cadaveric study highlighted the differences in pullout strength between two methods of graft fixation over the acetabular fossa that are commonly utilized in LT reconstruction. The method of suture button type fixation demonstrated better pullout strength and required higher load to failure compared to the PEEK corkscrew anchor fixation. To our knowledge, this is the first study comparing the different methods of LT reconstruction graft fixation on the acetabular side. We strongly believe that the results of this study can guide surgical decision making when selecting a fixation method for the LT graft during reconstruction.

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The Relationship Between Early And Mid-Term Hip Arthroscopy Outcomes: Employing 3 Month Follow-Up To Predict Mid-Term Results Abstract Presentation 5 minutes Mario Hevesi, MD, PhD, UNITED STATES Ajay C. Lall, MD, MS, FAAOS, UNITED STATES David E. Hartigan, MD, UNITED STATES Bruce A. Levy, MD, UNITED STATES Benjamin G. Domb, MD, UNITED STATES Aaron J. Krych, MD, UNITED STATES
Not Every Hip Impingement Requires Hip Arthroscopy. 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
Effect Of Femoral And Acetabular Version On Outcomes Following Hip Arthroscopy: A Systematic Review And Meta-Analysis Abstract Presentation 9 minutes Casey Wang, MD, CANADA Dan Cohen, MD, CANADA Jeffrey Kay, MD, CANADA Mahmoud Almasri, MD, FRCSC, UNITED STATES Nicole Simunovic, MSc, CANADA Carlomagno Cardenas-Nylander, MD, SPAIN Anil S. Ranawat, MD, UNITED STATES Olufemi R. Ayeni, MD, PhD, MSc, FRCSC, CANADA
Outcomes Of Revision Hip Arthroscopy Are Unaffected By Intraoperative Findings: A Matched Cohort Study ePoster Presentation Hari Krishna Ankem, MD, UNITED STATES Samantha Diulus, BS, UNITED STATES Cynthia Kyin, BA, UNITED STATES Jacob Shapira, MD, UNITED STATES Philip Joseph Rosinsky, MD, UNITED STATES Mitchell Meghpara, MD, UNITED STATES Ajay C. Lall, MD, MS, FAAOS, UNITED STATES Benjamin G. Domb, MD, UNITED STATES
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
Midterm Outcomes Following Hip Labral Augmentation Abstract Presentation 4 minutes Joseph J. Ruzbarsky, MD, UNITED STATES Rui Soares, BS, UNITED STATES Justin W. Arner, MD, UNITED STATES Lauren Pierpoint, PhD, UNITED STATES Maitland Martin, BS, UNITED STATES Spencer M Comfort, BS, UNITED STATES Marc J. Philippon, MD, UNITED STATES
EVALUATION OF HIP ARTHROSCOPY IN ELITE ATHLETES WITHOUT HIP DYSPLASIA . OUR EXPERIENCE. A 15-YEAR STUDY ePoster Presentation George D. Tsikouris, MD, GREECE Nikolaos D. Gravvanis, MD, GREECE Georgia S. Dedousi, MD, GREECE Ioannis K. Antonopoulos, GREECE Fanis P. Papadakis, BSc, MSc(cand.), GREECE Demetrios P. Tsikouris, PT, GREECE Eleftherios Tsikouris, BSc in Physiotherapy, GREECE Theodoros G. Troupis, Prof, GREECE
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
Psychologically Distressed Patients Can Obtain Meaningful Clinical Benefit from Arthroscopic Hip Surgery ePoster Presentation Benjamin Saks, MD, UNITED STATES Rachel Glein, BS, UNITED STATES Hari Krishna Ankem, MD, UNITED STATES Andrew Jimenez, MD, UNITED STATES Payam William Sabetian, MD, GUATEMALA Ajay C. Lall, MD, MS, FAAOS, UNITED STATES Benjamin G. Domb, MD, UNITED STATES
Natural History Of Femoroacetabular Impingement: Using Machine Learning To Evaluate Risk Factors For Osteoarthritis In A Large Geographic Population Over The Long-Term Abstract Presentation 5 minutes Ayoosh Pareek, MD, UNITED STATES Sunho Ko, MD, KOREA, NORTH Heath Melugin, MD, UNITED STATES Changwung Jo, MD, KOREA, REPUBLIC OF Ryan R Wilbur, BS, UNITED STATES Bryant M. Song, MS, UNITED STATES Aaron J. Krych, MD, UNITED STATES
Predicting Dissatisfaction Following Total Hip Arthroplasty Using A Bayesian Model Averaging (Bma) Approach: Results From The Australian Arthroplasty Clinical Outcomes Registry (Acorn) ePoster Presentation Jan Peter Van Meirhaeghe, MD, BELGIUM Rob Molnar, MBBS, AUSTRALIA Sam Adie, BSc(Med) MBBS MSpMed MPH PhD FRACS, AUSTRALIA
Snapping Hip Syndrome : An Uncommon Cause of Hip Pain ePoster Presentation Pollyanna Christine Ferreira Frazão, MD, PORTUGAL Rui Cardoso, MD, PORTUGAL Daniela Roque, MD, PORTUGAL Diogo Rocha Carvalho, Md, MsD, PORTUGAL André Santos, MD, PORTUGAL Sérgio Pita, MD, PORTUGAL Filipe Sá Malheiro, MD, PORTUGAL Tiago Pato, PORTUGAL Carlos Filipe Gonçalves João, MD, PORTUGAL Carlos Almeida, PORTUGAL
Traumatic Hip Dislocations In The Pediatric Patient: Injury Patterns, Need For Axial Imaging, Outcomes, And Selective Hip Arthroscopy Abstract Presentation 5 minutes Cliff Willimon, MD, UNITED STATES Anthony Egger, MD, UNITED STATES Crystal A. Perkins, 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
Use Of Preoperative Magnetic Resonance Imaging To Predict Clinical Outcomes Following Core Muscle Injury Repair ePoster Presentation Matthew J. Kraeutler, MD, UNITED STATES Jennifer Kurowicki, MD, UNITED STATES Iciar M Davila Castrodad, MD, UNITED STATES Edward Milman, MD, UNITED STATES Toghrul Talishinskiy, MD, UNITED STATES Anthony Scillia, UNITED STATES
The Effect Of Osteochondroplasty On Time To Reoperation After Arthroscopic Management Of Femoroacetabular Impingement Abstract Presentation 5 minutes Jeffrey Kay, MD, CANADA Nicole Simunovic, MSc, CANADA Olufemi R. Ayeni, MD, PhD, MSc, FRCSC, CANADA FIRST Investigators, MD, CANADA
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
A Comparison Of Perioperative Outcomes Between Patients Who Underwent Hip Arthroscopy With And Without The Pericapsular Nerve Group Block ePoster Presentation Albert A Yusupov, MD, UNITED STATES Iciar M Davila Castrodad, MD, UNITED STATES Matthew J. Kraeutler, MD, UNITED STATES Christopher J Mazzei, MD, UNITED STATES Stephen A. Hunt, MD Kimberly V Tucker, MD, UNITED STATES Anthony Scillia, UNITED STATES Patrick A Armstrong, MD, UNITED STATES Mathew S Chow, MD, UNITED STATES Richard A Stennett, MD, UNITED STATES James C Wittig, MD
Similar Joint Space Measurements Are Obtained With Supine And Weightbearing Anteroposterior Pelvis Radiographs: Results Of A Prospective Study Abstract Presentation 5 minutes Blake M. Bodendorfer, MD, UNITED STATES Vishal A. Mehta, DO, UNITED STATES Austin M Looney, MD, UNITED STATES Kenneth Tepper, MD, UNITED STATES

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Comparison Of Pull-Out Strength Following Ligamentum Teres Reconstruction In The Hip: Peek Corkscrew Suture Anchor Versus Cortical Button Fixation: A Cadaveric Study.

Comparison Of Pull-Out Strength Following Ligamentum Teres Reconstruction In The Hip: Peek Corkscrew Suture Anchor Versus Cortical Button Fixation: A Cadaveric Study.

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Purpose

Methods

Results

Discussion

Conclusion

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Comparison Of Pull-Out Strength Following Ligamentum Teres Reconstruction In The Hip: Peek Corkscrew Suture Anchor Versus Cortical Button Fixation: A Cadaveric Study.

Comparison Of Pull-Out Strength Following Ligamentum Teres Reconstruction In The Hip: Peek Corkscrew Suture Anchor Versus Cortical Button Fixation: A Cadaveric Study.

Background

Purpose

Methods

Results

Discussion

Conclusion

More ISAKOS 2021: Global Content