Differences in Outcomes After Allograft vs Autograft in Revision ACL Repair
Official title: Differences in Outcomes and Failure Rates Between Allografts and Autografts in Revision Anterior Cruciate Ligament Reconstruction
Run by Istituto Ortopedico Rizzoli · NCT07671235 · Data updated 2026-11-12
This study looks at whether using donor tissue (allograft) versus the patient’s own tissue (autograft) in revision ACL surgery leads to different results.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 50 Years |
| Sex | All |
| Enrollment | 150 (estimated) |
| Sponsor | Istituto Ortopedico Rizzoli Academic / other |
| Locations | 1 site (Bologna, Bologna) |
| Status | Recruiting |
| Started | July 8, 2026 |
| Main results expected | May 2027 |
| Study ends | May 2027 |
| Registry record updated | August 4, 2026 |
| Trial ID | NCT07671235 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18–50 undergoing revision ACL reconstruction with potential associated procedures and at least 2 years of follow-up.
✕Probably not a fit
Patients with advanced knee osteoarthritis (Outerbridge III-IV), severe obesity (BMI > 35), or other conditions preventing full weight-bearing may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study examines outcomes after revision ACL reconstruction to compare allografts and autografts. It focuses on patients 18–50 undergoing revision surgery and tracks outcomes for at least two years. Graft choice and surgical details may influence stability and rerupture risk, which can be higher in revisions. The study builds on known rerupture rates and aims to clarify how graft type affects overall outcomes in a real-world setting.
Why it matters
Potential benefit: If successful, the findings could help surgeons choose graft type to improve stability and reduce rerupture after revision ACL surgery.
How similar studies have gone: Previous data show differences in outcomes by graft type in ACL surgery, but revision settings are less clear, making this study important for clarification.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18-50 years at the time of surgery * Male and female patients * Patients undergoing revision anterior cruciate ligament (ACL) reconstruction with possible associated procedures, with at least 2 years of follow-up * Written informed consent to participate in the study Exclusion criteria: * Patients lost to follow-up * Refusal to provide informed consent * Advanced knee osteoarthritis (Outerbridge grade III-IV) at the time of surgery * Severe obesity (BMI \> 35) * Lower limb conditions preventing full weight-bearing standing during evaluation * Active infection, hematologic disease, or rheumatologic disease at the time of assessment
Where it's running
-
IRCCS Rizzoli Orthopedic Institute
Bologna, Bologna, Italy Recruiting
Study contacts
- Study coordinator: stefano zaffagnini
- Email: stefano.zaffagnini@unibo.it
- Phone: 0516366075
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Motor imagery–enhanced rehab after ACL reconstruction
This study tests whether mentally practicing movement can improve knee function and brain activity after ACL reconstruction, in comparison with standard rehab.
-
Functional Movement Training vs Functional Stability Training after ACL Surgery
This randomized trial tests whether a functional movement program or a stability-focused program helps 18-35 year old athletes recover after ACL surgery.
-
Intraoperative Energy Use During ACL Surgery
This study tests how much workload a surgeon experiences during ACL reconstruction procedures while wearing a Hexoskin shirt.
-
Ruxolitinib-enhanced haploidentical transplant for children and young adults with sickle cell disease
This trial will test whether adding ruxolitinib to a reduced-intensity haploidentical transplant lowers the risk of graft failure in children and young adults with sickle cell disease.
-
Preventing graft rejection after allogeneic stem cell transplant
This trial will try the drug emapalumab to see if it can prevent graft rejection in people judged high risk after allogeneic hematopoietic stem cell transplant.
-
Functional brain signal changes after ACL reconstruction with targeted neuromotor training
This project will test whether targeted neuromotor training after ACL reconstruction changes brain activity patterns in active adults aged 18–30.
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.