The Osteoarticular Transfer System is surgical procedure to core out a damaged bit of joint cartilage and replace it with a healthy bit from a donor.
A defect in the cartilage is prepared for grafting by coring out bone and cartilage.
A plug of healthy bone and cartilage is press-fitted into the hole to replace the original tissues.
Technique of osteoarticular transfer system
The recipient hole is prepared to a depth not exceeding one centimetre. The core of donor bone is taken from the donor femur and press-fitted into the prepared recipient area. Patients need to be non-weight-bearing for several weeks and have daily CPM to keep the joint moving gently so that the new bone and cartilage can fully integrate.
Refrigerated osteoarticular allografts to treat articular cartilage defects of the femoral condyles. A prospective outcomes study. LaPrade RF, Botker J, Herzog M and Agel J. J Bone Joint Surg Am. 2009 Apr;91(4):805-11. doi: 10.2106/JBJS.H.00703.
Distal Femoral Osteoarticular Allografts: Long-term Survival, But Frequent Complications. Toy PC, White JR, Scarborough MT, Enneking WF and Gibbs CP. Clin Orthop Relat Res. 2010 Nov; 468(11): 2914–2923.