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International Quadriceps Tendon Interest Group IQTI

The International Quadriceps Tendon Interest (IQTI) initiative was founded with the idea of gathering leading experts in the field of Orthopedic surgery and Sports medicine  who recognize the importance and applicability of Quadriceps Muscle tendon (QT) autograft for knee ligament reconstruction surgery.

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Outline of several different techniques for ligament reconstructions using the QT

We provided a detailed description of techniques for the use of QT in the ACL-,PCL- and MPFL- Reconstruction surgery. Each step of the described techniques is outlined with a corresponding pictures, followed by a video summary.

List of all the publications on the subject published in the last years

The publications from the available literature are divided in distinct categories  in regards to surgical techniques, clinical outcomes, biomechanics, rehabilitation, etc. and each study is linked with the pub.med platform and/or the journal of origin.

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Introduction to the initiative

This initiative was founded in 2017. with the goal of gathering experts in the fields of Orthopedic knee surgery and Sports medicine in order to share clinical practice expertise and research experiences, establish future research goals, clinical and rehabilitation protocols, which would ultimately lead to a better understanding and popularization of the Quadriceps tendon and its utilization as a safe, reproducible and versatile autograft choice for ACL and other ligament reconstruction surgeries.

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1

Minimally Invasive Harvest Of A Quadriceps Tendon Graft With or Without A Bone Block

Since QT autograft has mostly been reserved for revision surgeries in the past, due to a technically challenging open harvesting procedure with a high learning curve and less cosmetically attractive scaring, Fink et al. had a goal to develop a minimally invasive, less anatomically disruptive, and at the same time easily reproducible technique for QT harvest.

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2

Minimally Invasive Quadriceps Tendon Harvest And Graft Preparation For All-inside Anterior Cruciate Ligament Reconstruction

Xerogeanes and associates have developed a special minimally invasive technique for graft harvest for all-inside ACL reconstruction. It requires shorter grafts and since shortening the BTB graft proves to be difficult, QT graft appears to be an ideal choice for this technique.

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3

Minimally Invasive Quadriceps Tendon Single-bundle Arthroscopic, Anatomic Anterior Cruciate Ligament Reconstruction With Rectangular Bone Tunnels

Many surgeons use quadriceps tendon (QT) graft for anterior cruciate ligament (ACL) revision surgery; however, despite excellent clinical results, the QT has not achieved universal acceptance for primary ACL reconstruction.

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About Us

The members of this experts group are leading experts from around the world who have been using the QT autograft in their surgical practice and have conducted and published research on the subject.

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NEWS

Latest IQTI
News

Published by IQTI on 16.April, 2025

Save the Date: IQTI Expert Meeting on June 7, 2025 – Munich, Germany

The International Quadriceps Tendon Initiative (IQTI) is proud to announce its second expert meeting, taking place on June 7th, 2025 at the NH München Ost Conference Center in Munich. This year’s program will explore the full spectrum of quadriceps tendon use in ligamentary knee surgery, covering anatomy, biomechanics, reconstruction techniques, revision str...
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Published by IQTI on 10.March, 2025

Next IQTI Meeting pending!

We are excited to announce that the next IQTI Meeting will take place on June 7, 2025, in Munich, Germany! Stay tuned for details on the program and participation opportunities—coming soon!...
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Become a member

All who have been using the QT autograft, have conducted studies and published papers on the subject or have strong interest in doing so are welcome to apply for the membership in the IQTI. Each application will be processed and the answer will be given in the shortest time possible.

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PUBLICATIONS

Latest IQTI
Publications

Ripic, Z., Letter, M., Parrino, R., Adams, W., Kaplan, L. D., Baraga, M. G., Best, T. M., Signorile, J. F., & Eltoukhy, M. (2024). Knee joint mechanics during gait after anterior cruciate ligament reconstruction using a partial or full thickness quadriceps tendon autograft at 2 years after surgery. PM & R : the journal of injury, function, and rehabilitation, 10.1002/pmrj.13278. Advance online publication. https://doi.org/10.1002/pmrj.13278

Cherelstein, R. E., Kuenze, C. M., Walaszek, M. C., Brumfield, E. R., Lewis, J. N., Hughes, G. A., & Chang, E. S. (2025). Patients With a Quadriceps Tendon Autograft Demonstrate Greater Asymmetry in Landing Kinetics Than Patients With a Bone-Patellar Tendon-Bone Autograft 6 Months After Anterior Cruciate Ligament Reconstruction. The American journal of sports medicine, 53(3), 623–631. https://doi.org/10.1177/03635465241310400

Neufeld, E. V., Sgaglione, J., & Sgaglione, N. A. (2025). Anterior Cruciate Ligament Reconstruction Graft Options. Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association, 41(1), 16–18. https://doi.org/10.1016/j.arthro.2024.10.004

Lee, R. C., Voinier, S. D., McCarthy, C. F., Colantonio, D. F., Gee, S. M., Tucker, C. J., Helgeson, M. D., & Lopreiato, N. P. (2025). Smaller Width Quadriceps Tendon Grafts Maintain Advantageous Biomechanical Properties for ACL Reconstruction. Orthopaedic journal of sports medicine, 13(2), 23259671251318014. https://doi.org/10.1177/23259671251318014

Lee, D. W., Lee, S., Ro, D. H., & Han, H. S. (2025). Satisfactory Clinical Outcomes of Revision Anterior Cruciate Ligament Reconstruction Using Quadriceps Tendon-Patellar Bone Allograft. Clinics in orthopedic surgery, 17(1), 91–99. https://doi.org/10.4055/cios23409

Kurkowski, S. C., Thimmesch, M. J., Murphy, M., Kuechly, H. A., Emmert, A. S., & Grawe, B. (2025). Uncovering the State of Current Data on Quadriceps Tendon Autograft Use Versus Bone-Patellar Tendon-Bone and Hamstring Tendon Autografts in Anterior Cruciate Ligament Reconstruction at ≥5 Years After Surgery: A Systematic Review and Meta-analysis. The American journal of sports medicine, 3635465241266628. Advance online publication. https://doi.org/10.1177/03635465241266628

Calvert, N. D., Ebert, J. R., & Radic, R. (2025). Kneeling tolerance when using quadriceps tendon autograft for anterior cruciate ligament reconstruction is superior to hamstring tendon autograft. Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 10.1002/ksa.12583. Advance online publication. https://doi.org/10.1002/ksa.12583

Vivekanantha, P., Kahlon, H., Hassan, Z., Slawaska-Eng, D., Abdel-Khalik, H., Johnson, J., & de Sa, D. (2025). Hamstring autografts demonstrate either similar or inferior outcomes to quadriceps or bone-patellar tendon-bone autografts in revision anterior cruciate ligament reconstruction: A systematic review of comparative studies. Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 33(2), 413–427. https://doi.org/10.1002/ksa.12366

Giusto, J. D., Konstantinou, E., Rabuck, S. J., Lesniak, B. P., Hughes, J. D., Irrgang, J. J., Musahl, V., & Panther ACL Treatment Group (2025). When is Anterolateral Complex Augmentation Indicated? Perspectives from the 2024 Freddie Fu Panther Sports Medicine Symposium. Journal of ISAKOS : joint disorders & orthopaedic sports medicine, 100393. Advance online publication. https://doi.org/10.1016/j.jisako.2025.100393