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New Tissue Form Debuts with Phenomenal Acceptance from Orthopaedic Surgeons |
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A new allograft containing cancellous and demineralized bone along with viable adult stem cells is now available through MTF. Trinity Evolution helps boost patient bone growth in a number of orthopaedic procedures including spinal, non-healing fractures, and anywhere the surgeon needs to incorporate bone or repair musculoskeletal defects. The trinity, or three essential components of this unique tissue form, contains all the critical “osteos” in one tissue form. These are: first, an osteoconductive scaffold, or a material with the ability to serve as a platform (scaffold) on which bone cells can attach or migrate, and then grow and divide; second, a verified osteoinductive potential, or a substance that stimulates bone formation; and third, a reliable number of osteogenic cells, which are stem cells that stimulate new cell growth. |
These stem cells, called mesenchymal stem cells (MSC), differentiate into bone, cartilage, muscle, or fat given the proper signals. Every step in the preparation of this new tissue form, from donor screening to liquid nitrogen storage and pre-release testing, is designed to maintain cell viability and ensure patient safety. In order to maintain cell health, there are processing time constraints. MTF must begin processing this tissue form within 72 hours after death, and processing must be completed within 96 hours after death. Tissue recovered from donors 55 years old and younger is used for this new tissue form. |
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Technical Sergeant Starr Named 2010 Rose Parade Float Rider |
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Currently assigned to the 305th Aerial Port Squadron at McGuire Air Force Base in NJ, Starr was on active duty in Aviano, Italy in 1999, when he injured his knee. The result was a torn ACL and two meniscal tears. His knee was repaired in 2001, but while stationed in Kunsan, Korea four years later, he re-injured his ACL and was told his military career was probably over. Then, in the spring of 2006, while stationed at Hickman Air Force Base in Hawaii, he met the surgeon who would save his military career. Lt. Col. Daniel White, MD of the Tripler Medical Center in Honolulu, HI told Jeremy that the injury had caused his left leg to bow, a condition which would prevent him from remaining in the Air Force, where he enjoyed a career leading over 60 military personnel daily. Dr. White performed a two-phase surgery, the first correcting the bowing of his knee with a procedure called a tibial osteotomy, and the second, using a donated |
tendon and meniscus allografts to repair Jeremy’s ACL and to replace his menisci. Extensive physical therapy followed both surgical procedures. An exceptional athlete in track and field since high school, Jeremy was delighted when he ran his first mile recently in just 10 minutes. “MTF and Lt. Col. White have allowed me to continue my career in the military, and my love for cross country running,” said Jeremy. “Even at 30 years old, I can out-run most of the younger personnel in my unit. It is a great feeling and I owe most of it to Dr. White, my tissue donor and MTF.” Jeremy is the recipient of three Air Force Commendation Medals, five Air Force Achievement Medals, Combat Readiness Medal, three Good Conduct Medals, National Defense Medal, Kosovo Campaign Medal, Afghanistan Medal, War of Terrorism Expeditionary Medal, War on Terrorism Service Medal, Korea Defense Service Medal, NATO Medal, and numerous letters of appreciation. “MTF is privileged to have Technical Sergeant Starr represent us in the Tournament of Roses Parade,” said Bruce Stroever, MTF President and CEO. “Jeremy brings honor to his country as he serves in the military, and he brings distinction and respect to the field of transplantation as a tissue recipient. We are very proud of his accomplishments." *Jeremy Starr is participating in the Donate Life Rose Parade on an individual and voluntary basis. His voluntary participation does not constitute US Air Force or Department of Defense endorsement for, sponsorship of, or preferential treatment toward MTF or its affiliates. |
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What are OA and OC Grafts? Most of you are familiar with the routine applications of musculoskeletal allografts distributed by MTF. Most common are the numerous bony void fillers, the machined configurations of cortical and cancellous bone for use in spinal fusion, and the patellar ligament, Achilles, tibialis and hamstring tendons used for ACL repair of the knee. However, many of you may not be familiar with osteochondral (OC) or osteoarticular (OA) allografts. Demand for these health-improving tissue forms has increased over the past several years. |
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OC Grafts Osteochondral grafts consist of bone (osteo) and cartilage (chondral). They must be transplanted within 28 days from the date of recovery to maximize cartilage cell viability. Demand for this tissue has increased steadily over the past several years and supply is limited by the relatively narrow donor criteria. The age criteria for donation of these grafts is 12 to 45 years since older donors would be more likely to have worn or damaged cartilage. Once OC grafts are processed, they are used for cartilage repair and various sports injuries. Typically defects requiring this repair are on a weight bearing portion of the distal femur. Using specialized instruments provided by MTF, the defect is first cleared of all damaged cartilage and a single hole is drilled, slightly larger than the defect. A plug of the same size is then drilled from the OC allograft and pressed into the prepared hole in the recipient’s femur.
OA Grafts OA grafts consist of bone and soft tissue attachments of the joint (tendons and ligaments). These grafts are used to replace large segments of bone that must be removed due to disease (usually tumors) or trauma. In most cases, receipt of an OA allograft is a limb-salvaging procedure since there is usually no other way to replace these large segments of bone. |
These grafts are recovered from donors between the ages of 12 and 45 for lower and upper extremities. In special cases where a patient may have a unique need, OAs for bones of the hands and feet or the forearm may be requested from younger donors down to the age of five. In order to protect the soft tissues (tendons, ligament and joint capsules) associated with these grafts, they are typically recovered en bloc, or with the entire joint intact. Once processed these grafts are frozen and transported to hospitals on dry ice. The surgeon’s primary concern when transplanting an OA graft is replacing a large segment of bone and restoring the function of the affected joint. Once the diseased or damaged bone has been removed, the allograft bone is anchored in place. The tendons of allograft are then sutured to the patient’s corresponding muscles to restore mobility to the joint. MTF provides a graft matching service for both OC and OA grafts, designed to give Orthopaedic Surgeons the best possible, anatomically matched allograft for their patient’s surgical repair. This service saves both the surgeon and staff valuable time by eliminating the need for extensive modifications at the time of transplantation.
As the needs of the transplant community continue to evolve and expand, and new uses are discovered for allograft tissue forms, MTF relies on the generosity of donors and the willingness of our Recovery Partners to help meet these challenges. |
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Job Well Done! |
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The following employees from MTF Recovery Partners earned their CTBS certification through AATB in 2009. Thank you to AATB for providing this list. From Gift of Life Donor Services: From Intermountain Donor Services: From LifeBanc: From LifeGift Organ Donation Center: From LifeSource: |
From Mississippi Organ Recovery Agency: From Nebraska Organ Recovery System: From New Jersey Organ & Tissue Sharing Network: From New York Organ Donor Network: From Organ Donor Center of Hawaii: Employees from MTF include: |
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