Clinical Outcomes, Graft Longevity, and Chondral Protection Following Primary or Revision Meniscal Allograft Transplantation Surgery

Inclusion Criteria: Subjects enrolled in this study must meet all of the following inclusion criteria: * Males and females aged 10-65 years * MRI or arthroscopic images confirming the suitability for meniscus transplantation. * Patients undergoing an isolated primary/revision MAT (meniscal allograft transplant) procedure, or concomitant MAT with other knee procedures such as ligament reconstruction, realignment osteotomy, or cartilage resurfacing. * Medically suitable for meniscus transplantation. * Appropriate understanding of the language of the surgical center in terms of communication and reading. * Ability of the Patient or parent/guardian to provide informed consent. Exclusion Criteria: * Inability to comply with rehabilitation programs. * Patient aged less than 10 years and more than 65. * Presence of diffuse full thickness cartilage loss (widespread ICRS Grade III-IV chondral damage) and/or architectural remodeling of bone (i.e. flattening of condyle) in the knee of interest. * Significant medical comorbidities that limit patients from undergoing surgery. * Presence of confounding neuromuscular, genetic/congenital, or post-traumatic conditions.