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 Reconstruction Of The Medial Collateral Ligament And Anterior Cruciate Ligament Using Ipsilateral Semitendinosus Tendon And Opposite Semitendinosus With Ipsilateral Gracilis Tendon: A Minimum One-Year Follow-Up Study In NITOR.Dhaka,Bnagladesh Abstract Presentation 4 minutes Dibakar Sarkar, MS(Orthopaedic surgery),FACS(USA),AO fellow(Bangko, BANGLADESH
Same Knee, Different Goals: Patients and Surgeons have Different Priorities Related to ACL Reconstructions and Surgeons are Resistant to Changing Clinical Practice Abstract Presentation 4 minutes Hana Marmura, BSc, CANADA Dianne M. Bryant, PhD, CANADA Trevor B. Birmingham, PT, PhD, CANADA Kurt Paul Spindler, MD, UNITED STATES Christopher C. Kaeding, MD, UNITED STATES Tim Spalding, FRCS(Orth), UNITED KINGDOM Alan Getgood, MD, FRCS(Tr&Orth), DipSEM, CANADA
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
Bone Marrow Aspiration Concentrate Augmentation in Anterior Cruciate Ligament Hamstring Autograft Reconstruction: Clinical and Functional Outcomes of a Cohort Study Abstract Presentation 5 minutes David H. Figueroa, MD, CHILE Rodrigo Guiloff, MD, Prof, CHILE Sergio Arellano, MD, CHILE Alex Vaisman, MD, Prof., CHILE Francisco Figueroa, MD, CHILE Nicolas Zilleruelo, MD, CHILE Rafael Calvo, MD, CHILE
Tranexamic Acid Has No Effect On Post-Operative Hemarthrosis Or Pain Control Following Acl Reconstruction Using Bone Patella Tendon Bone Autograft: A Double-Blinded Randomized Control Trial Abstract Presentation 5 minutes Jordan W Fried, BM, UNITED STATES David Bloom, BA, UNITED STATES Eoghan T. Hurley, MB, BCh, MCh, IRELAND Samuel Baron, MD, UNITED STATES Kirk Anthony Campbell, MD, UNITED STATES Eric Jason Strauss, MD Laith M. Jazrawi, MD, UNITED STATES Michael J Alaia, MD, UNITED STATES
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, FRANCE 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
The Lateral Femoral Notch Sign Entails Increased Rotatory Laxity After Acl-Injury. Pivot Shift Quantification With Surgical Navigation System Abstract Presentation 5 minutes Gian Andrea Lucidi, MD, ITALY Piero Agostinone, MD, ITALY Stefano Di Paolo, Eng, ITALY Alberto Grassi, PhD, ITALY Luca Macchiarola, MD, ITALY Giacomo Dal Fabbro, MD, ITALY Nicola Pizza, MD, ITALY Stefano Zaffagnini, MD, Prof., ITALY

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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