Clinical Significance
Avoiding a Second Surgical Site in ACL Reconstruction
SRF advanced a reproducible ACL reconstruction technique that uses a strong donor quadriceps tendon, allowing patients to avoid the additional pain and recovery associated with harvesting tendon from another part of their own body.
Traditional autograft reconstruction requires surgeons to remove tendon from the patient, creating a second surgical site that can add pain and morbidity. The three-incision technique instead uses allograft (donor) tissue while supporting accurate graft placement and consistent fixation, including during complex revision surgery.
Early outcomes were comparable to reconstruction using a graft taken from the patient’s own patellar tendon, without the same risk of pain at the front of the knee. Patients returned to sports on a similar timeline, with twisting activities delayed for six to 12 months. Further research is needed to evaluate long-term re-rupture rates.
Clinical Significance
Exploring a Novel Source of Strong Graft Tissue
SRF research provided proof of principle that a porcine xenograft (animal-derived tissue graft) could be processed through an enzymatic treatment for ACL reconstruction and gradually remodel into functional ligament tissue.
In a 10-patient study, the graft was treated to reduce immune rejection and support gradual replacement by the patient’s own cells. Five reconstructions remained successful at 12 years, with four available at 20 years showing stable, functional knees and mature graft remodeling on MRI.
Although further clinical trials are required, the approach could provide a strong and inexpensive source of graft tissue.
