Summary: Partial-thickness quadriceps tendon grafts is significantly lower ultimate load and stiffness that other potential ACL grafts where as a full-thickness quadriceps tendon allografts with bone plugs were comparable to bone-patellar tendon-bone grafts and possessed the ultimate tensile force and stiffness needed to be a viable ACLR graft choice.

Background

Despite increasing interest in utilizing quadriceps tendon grafts in anterior cruciate ligament reconstruction (ACLR), data on the optimal quadriceps graft thickness is limited. It is important that the grafts being utilized in this procedure have comparable biomechanical properties to the native anterior cruciate ligament (ACL).

Purpose

To characterize the mechanical properties for the quadriceps tendon, comparing full-thickness QT grafts with and without bone-plugs to a partial-thickness QT graft, and comparing the three QT grafts to 4-stranded ST (4-SST) and BTB grafts and one experimental graft, RF
Study Design: Controlled Laboratory Study

Methods

Forty-eight (N=48) young cadaveric grafts were utilized (mean age 32 ? 6 years), with N=8 specimens in each of the following groups; 1) full-thickness quadriceps tendon with bone, 2) full-thickness quadriceps tendon without bone, 3) partial-thickness quadriceps tendon without bone, 4) bone-patellar tendon-bone, 5) double rectus femoris, and 6) quadrupled semitendinosus tendon. Each specimen was harvested and rigidly fixed in custom clamps to a dynamic tensile testing machine for biomechanical evaluation. Graft ultimate load and stiffness were recorded. Independent groups one-factor ANOVAs and Tukey’s pairwise comparisons were performed for statistical analyses.

Results

Full-thickness quadriceps tendon with bone and semitendinosus tendon grafts demonstrated similar ultimate loads to bone-patellar tendon-bone grafts (p = 0.331 and p = 0.975, respectively). Furthermore, no significant differences were observed between the ultimate loads of full-thickness vs. partial-thickness quadriceps tendon grafts without bone (p = 0.460) or between full-thickness quadriceps grafts with vs. without bone (p = 0.613). However, full-thickness quadriceps tendon grafts with bone had significantly greater ultimate loads than partial-thickness quadriceps tendon grafts without bone (p = 0.0169).

Conclusions

Full thickness QT grafts with bone had similar material properties to BTB and a 4-SST, whereas this study suggests that partial thickness QT or QT grafts without bone should be used with considereation.

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Combined ACL and Anterolateral Ligament Reconstruction Confers Significantly Improved Long Term Outcomes when Compared to Isolated ACL Reconstruction: A Matched-Pair Analysis Abstract Presentation 5 minutes Adnan Saithna, MD, FRCS, UNITED STATES Ibrahim Haidar, MD, LEBANON Johnny Rayes, MD, MSc, FEBOT, CANADA Thomas Fradin, MD, FRANCE Cédric Ngbilo, MD, SWITZERLAND Benjamin Freychet, MD, FRANCE Thais Dutra Vieira, MD, FRANCE Herve Ouanezar, MD, UNITED ARAB EMIRATES Bertrand Sonnery-Cottet, MD, PhD, FRANCE
Quadriceps Tendon Autograft Has Lower MRI Signal Than Hamstring Tendon Autograft In Anterior Cruciate Ligament Reconstructions Of Adolescent Athletes Abstract Presentation 5 minutes David Alcoloumbre, MD, UNITED STATES Alexandra Hunter Aitchison, UNITED STATES Douglas Mintz, MD, UNITED STATES Frank A. Cordasco, MD, MS, UNITED STATES Daniel W. Green, MD, MS, UNITED STATES
Sex Related Outcomes Following Anterior Cruciate Ligament Reconstruction (Aclr): A Systematic Review and Meta-Analysis Abstract Presentation 5 minutes Anthony Charles Mok, BS, UNITED STATES Andrew J Fancher, BS, UNITED STATES Matthew L Vopat, MD, UNITED STATES Jordan Charles Baker, BS, UNITED STATES Armin Tarakemeh, BS, UNITED STATES Mary K. Mulcahey, MD, UNITED STATES Scott Mullen, MD, UNITED STATES Paul Schroeppel, MD, UNITED STATES Kimberly J. Templeton, MD, UNITED STATES Bryan Vopat, UNITED STATES
Risk Factors for Grade 3 Pivot Shift in Acute ACL-Injured Knees Abstract Presentation 5 minutes Adnan Saithna, MD, FRCS, UNITED STATES Edoardo Monaco, MD, ITALY Edoardo Gaj, MD, ITALY Valerio Andreozzi, ITALY Alessandro Annibaldi, MD, ITALY Alessandro Carrozzo, MD, ITALY Thais Dutra Vieira, MD, FRANCE Bertrand Sonnery-Cottet, MD, PhD, FRANCE Andrea Ferretti, Prof., ITALY
The Effect Of Lateral Extraarticular Tenodesis On In Vivo Cartilage Contact In Combined Anterior Cruciate Ligament Reconstruction ePoster Presentation Kyohei Nishida , MD, PhD, JAPAN Tom Gale, MS, UNITED STATES Daisuke Chiba, MD, PhD, JAPAN Felipe Martin Suntaxi, MS, UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Freddie H. Fu, MD, UNITED STATES William Anderst, PhD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES
Xenograft For Anterior Cruciate Ligament Reconstruction Was Associated With High Graft Processing Infection. Abstract Presentation 6 minutes Willem M. van der Merwe, MBChB, FCS(SA)Ortho, SOUTH AFRICA Martin Lind, MD, PhD, Prof., DENMARK Peter Faunoe, MD, DENMARK Kees van Egmond, MD, NETHERLANDS Stefano Zaffagnini, MD, Prof., ITALY Maurilio Marcacci, MD, ITALY Ramon Cugat Bertomeu, MD, PhD, SPAIN Rene E. Verdonk, Prof Em, MD, PhD, BELGIUM Ernique Ibanez, MD, PhD, SPAIN Giulio Maria Marcheggiani Muccioli, MD, PhD, Associate Professor, ITALY
Inter- and Intra-Rater Reliability of Measurenebt of ACL TUnnels with Radiographs, CT, and MRI Abstract Presentation 4 minutes Robert A Magnussen, MD, MPH, UNITED STATES Alexander Sparks, BS, UNITED STATES Jacy Leon, BS, UNITED STATES Matthew Colatruglio, BS, UNITED STATES Joshua Bowler, MD James Oosten, BS, UNITED STATES Alex C. Dibartola, MD, MPH, UNITED STATES Joshua Scott Everhart, MD, MPH, UNITED STATES Robert A. Duerr, MD, UNITED STATES Christopher C. Kaeding, MD, UNITED STATES David C. Flanigan, MD, UNITED STATES

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Comparison of three different Quadriceps Tendon ACL graft to BTB and Semi-T grafts: A biomechanical study

Comparison of three different Quadriceps Tendon ACL graft to BTB and Semi-T grafts: A biomechanical study

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Methods

Results

Conclusions

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Comparison of three different Quadriceps Tendon ACL graft to BTB and Semi-T grafts: A biomechanical study

Comparison of three different Quadriceps Tendon ACL graft to BTB and Semi-T grafts: A biomechanical study

Background

Purpose

Methods

Results

Conclusions

More ISAKOS 2021: Global Content