The purpose of this study is to determine the long-term survivorship and clinical outcomes of all cryopreserved meniscus transplants performed by Dr. Frank Noyes.

All patients receiving cryopreserved meniscus transplants will be followed at 1, 2, 5, 10, and 15 years postoperatively. Study examination will include comprehensive knee examination by Dr. Noyes, x-rays, and potentially MRI. Patients will complete the following forms of the Cincinnati Knee Rating System: Symptom Rating Form, Sports Activity and Function Form, and Occupational Rating Form. All patient identification will be kept confidential. Patient data will be entered into the Knee Registry database according to their unique study number by the clinical research assistant.

Inclusion Criteria:

• Patient post-meniscectomy
• Patient symptomatic with activities
• Patient has early articular cartilage degeneration in affected tibiofemoral compartment
• Patient understands goals of operation, willing to undergo lengthy rehabilitation

Exclusion Criteria:

• Patient has no symptoms with activities
• Patient has advanced degeneration in affected tibiofemoral compartment or other compartments
• Patient is obese (BMI > 30)
• Patient has uncorrected lower limb axial malalignment or knee ligament deficiency
• Patient has active infection
• Patient has pre-existing knee arthrofibrosis or lower limb muscular atrophy
• Patient has symptomatic patellofemoral articular cartilage deterioration
• Patient is unwilling to undergo lengthy rehabilitation after surgery

Minimum age: 14 Years Maximum age: 49 Years Gender: Both Accepts Healthy Volunteers: No Patients post-meniscectomy, symptomatic with activities, early cartilage degeneration in affected tibiofemoral compartment.

Published results in Journal of Bone and Joint Surgery, 2015 and American Journal of Sports Medicine 2016