An interventional study of ACL Repair and ACL Reconstruction in Anterior Cruciate Ligament Injuries, sponsored by Second Affiliated Hospital, School of Medicine, Zhejiang University. Recruiting at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-24.
Sponsored by Second Affiliated Hospital, School of Medicine, Zhejiang University · Not applicable, Interventional, and Treatment
Background: Arthroscopic anterior cruciate ligament(ACL) reconstruction is so far the gold standard for the treatment of ACL ruptures, but this technique still suffers from problems of tendon-bone healing, bone tunnel enlargement, bone resorption, a low rate of return to motion,etc. In recent years, due to the innovation of medical materials and surgical techniques, anterior cruciate ligament repair technology has returned to the field of vision of clinical doctors. This technique has the advantages of preserving the natural ligaments and their proprioceptive sensation, avoiding the bone injury of the tunnel and the complications of the donor site. However, there is still a lack of high-quality clinical randomized controlled trails to provide evidence of the effect of arthroscopic ACL repair.
Hypothesis: Arthroscopic ACL repair is comparable to ACL reconstruction in patients with ACL tears (Sherman grades I and II).
Study Design: This study was a prospective, multicenter, randomized, double-blinded, parallel-controlled, non-inferiority trial design. A total of 330 patients with ACL tears were randomly divided into 2 groups, and were randomly assigned to the experimental group (arthroscopic anterior cruciate ligament repair) and the control group (arthroscopic anterior cruciate ligament reconstruction) according to 1:1. Follow-up knee function and other scores were performed at 3 months, 6 months, 1 year, and 2 years after surgery, and the total study time is expected to be 3 years.
625 studies on the registry are indexed under Anterior Cruciate Ligament Injuries; 192 are open to participants now.
This study's planned enrollment of 140 is above the median of 56 across 458 interventional studies indexed under Anterior Cruciate Ligament Injuries.
Browse Anterior Cruciate Ligament Injuries studies →Second Affiliated Hospital, School of Medicine, Zhejiang University is the lead sponsor of 1,047 studies on the registry; 502 are open to participants now.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients under surgical anterior cruciate ligament repair
Procedure: ACL Repair
Patients under surgical anterior cruciate ligament reconstruction
Procedure: ACL Reconstruction
Patients are undergoing arthroscopic anterior cruciate ligament repair. The native ACL is repaired using very strong sutures. This device is used to repair the native ACL and restore knee stability.
Patients are undergoing arthroscopic anterior cruciate ligament reconstruction. The torn ligament is removed and replaced with a band of tissue that usually connects muscle to bone. The graft tendon is taken from another part of your knee or from a deceased donor.
IKDC score
The IKDC is a patient-completed tool, which contains sections on knee symptoms (7 items), function (2 items), and sports activities (2 items). Scores range from 0 points (lowest level of function or highest level of symptoms) to 100 points (highest level of function and lowest level of symptoms). Efficiency of 1 year after operation=Sum of Items/Maximum Possible Score \*100
Time frame: 1 year
IKDC score
The IKDC is a patient-completed tool, which contains sections on knee symptoms (7 items), function (2 items), and sports activities (2 items). Efficiency of 3 months after operation=Sum of Items/Maximum Possible Score \*100
Time frame: 3 months
IKDC score
The IKDC is a patient-completed tool, which contains sections on knee symptoms (7 items), function (2 items), and sports activities (2 items). Efficiency of 6 months after operation=Sum of Items/Maximum Possible Score \*100
Time frame: 6 months
IKDC score
The IKDC is a patient-completed tool, which contains sections on knee symptoms (7 items), function (2 items), and sports activities (2 items). Efficiency of 2 years after operation=Sum of Items/Maximum Possible Score \*100
Time frame: 2 years
Started Nov 2022 (actual). Primary completion is estimated for Dec 2028, 73 months after the start.
Of 277 non-industry interventional studies with no phase under Anterior Cruciate Ligament Injuries, half reached primary completion within 31 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 70. This study's planned 73 months is above that.
Counting every sponsor, half of 286 studies reached it within 30 months; a quarter within 14 and three quarters within 70.
How these figures are worked out, and which studies are left out of them.
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Anterior Cruciate Ligament Injuries →
Second Affiliated Hospital, School of Medicine, Zhejiang University →