Comparing quadriceps tendon and hamstring autografts for ACL reconstruction in young patients
Official title: Soft-tissue Quadriceps Autograft ACL-reconstruction in the Skeletally-immature vs. Hamstrings (SQuASH): A Multi-Centre Randomized Controlled Trial
Run by McMaster University · NCT03896464 · Data updated 2026-11-12
This study is testing whether using quadriceps tendon grafts instead of hamstring grafts for ACL surgery can lead to better recovery for young patients aged 10-18.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 10 Years to 18 Years |
| Sex | All |
| Enrollment | 352 (estimated) |
| Sponsor | McMaster University Academic / other |
| Locations | 6 sites (Hamilton, Ontario and 5 other locations) |
| Status | Recruiting |
| Started | January 1, 2020 |
| Main results expected | January 1, 2030 |
| Study ends | January 1, 2030 |
| Registry record updated | October 7, 2026 |
| Trial ID | NCT03896464 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are skeletally-immature patients aged 10-18 years with confirmed ACL insufficiency and a history of sports participation.
✕Probably not a fit
Patients with significant cartilage lesions or symptomatic osteoarthritis may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to evaluate the effectiveness of quadriceps tendon autografts compared to traditional hamstring autografts in pediatric patients undergoing ACL reconstruction. It involves a randomized controlled design with 352 skeletally-immature participants aged 10-18 years, who will be assessed for ACL insufficiency through clinical evaluations and imaging. The study seeks to determine if the quadriceps tendon can provide better outcomes in this population, as it has shown promise in adults but lacks extensive pediatric research. The trial will be conducted across multiple centers in Canada, ensuring a diverse participant pool.
Why it matters
Potential benefit: If successful, this study could provide a safer and more effective surgical option for young athletes with ACL injuries.
How similar studies have gone: While the quadriceps tendon has shown favorable outcomes in adults, this approach in pediatric patients is novel and has not been extensively tested in prior studies.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria 1. Patients aged 10-18 years. 2. History, physical exam, and magnetic resonance imaging (MRI) or arthroscopic image confirmation of ACL insufficiency. 3. Suitable for anatomic, single-bundle arthroscopic-assisted ACL reconstruction. 4. X-ray or MRI evidence of skeletal immaturity (i.e., open physes) based on imaging that is closest to the time of injury (and correlated with standard bone age left hand posteroanterior (PA) radiographs). 5. Patient involved in sport (competitive and/or recreational level) prior to injury. 6. Patient and parent/guardian speak, read, and understand the language of the clinical site. 7. Patient and parent/guardian provide informed consent and/or assent. Exclusion Criteria 1. Evidence (i.e. radiographic and/or arthroscopic) of International Cartilage Repair Society (ICRS) Cartilage Lesion Classification System Grade 2 (i.e., lesions extending down to 50% of the cartilage depth) and higher osteoarthritis that is symptomatic, requiring treatment other than debridement or microfracture. 2. Tibial eminence/spine fractures treated surgically. 3. Concomitant collateral, posterior cruciate, and/or cartilage pathology requiring surgical reconstruction and/or advanced restoration techniques (i.e., osteochondral allograft or autograft transfer, matrix-induced autologous chondrocyte implantation, particulate juvenile articular cartilage allograft transplantation). 4. Previous ACL reconstruction in the affected knee or contralateral knee. 5. Previous distal femur and/or proximal tibial/fibular physeal injury in the affected knee or contralateral knee. 6. Allograft or allograft-augmentation, or synthetic augmentation of the ACL reconstruction. 7. Biological-augmentation of the ACL reconstruction (i.e. platelet-rich-plasma, fibrin clot, reinforced bioinductive implants, etc.). 8. ACL reconstruction utilizing synthetic grafts. 9. Primary ACL repair. 10. Patient diagnosed with inflammatory arthropathy. 11. Significant medical co-morbidities (requiring daily assistance for activities of daily living). 12. Patient, parent/guardian, and/or clinical investigator believe the patient will have difficulty maintaining follow-up.
Where it's running
-
McMaster University
Hamilton, Ontario, Canada Recruiting -
Children's Hospital of Eastern Ontario
Ottawa, Ontario, Canada Recruiting -
Women's College Hospital/Research Institute
Toronto, Ontario, Canada Recruiting -
CHU Sainte-Justine
Montreal, Quebec, Canada Recruiting -
Shriners Hospitals for Children - Canada
Montreal, Quebec, Canada Recruiting -
Kobe University
Kobe, Japan Recruiting
Study contacts
- Principal investigator: Darren de SA, MD, FRCSC — McMaster University
- Study coordinator: Darren de SA, MD, FRCSC
- Email: darren.desa@medportal.ca
- Phone: 9059232126
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Optimizing graft selection for ACL reconstruction
This study is testing which type of graft—quadriceps tendon, hamstring tendons, or patellar tendon—works best for helping young adults recover from their first ACL injury.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.