The purpose of this clinical study is to compare the outcomes of two surgical techniques for reconstruction of the anterior cruciate ligament (ACL) after a single, primary ACL rupture.
The main question to be answered is:
\- Does less widening of the tibial tunnel occur when a bone/Platelet rich plasma (PrP) composite material is placed directly into the tibial tunnel after fixation of the implant (experimental group) compared to the same surgery without the use of the composite material (control group)?
Participants will be randomized into one of the two groups and they will not know which group they belong to. After 12 months they will undergo CT, MRI, medical examination and functional knee testing. They will have a further medical examination and functional knee testing at 24 months. Patient Reported Outcomes will be collected before surgery, 6, 12 and 24 months after surgery.
Age 18-50 years
Primary ACL rupture
Time from injury to surgery: 4 weeks to 6 months
Single ACL rupture (isolated rupture)
Concomitant ligamentous instability/rupture
Requirement for Meniscus suture (partial resection accepted, hoop and roots remain intact)
Requirement for cartilage invasive treatment (debridement accepted)
Osteoarthritis at index knee joint