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FDA approves knee-injury device for humans
October 03, 2007MU Researchers helped developed device that allows for repair of torn knee meniscus
COLUMBIA, Mo. - A new knee-surgery device investigated by University of Missouri-Columbia researchers that will help to repair meniscus tears, which were previously defined as irreparable, has been approved by the FDA for use in humans.
Previous treatment options forced surgeons to completely remove the damaged portion of the meniscus. Typically the removal of the meniscus leads to painful, debilitating arthritis in the knee. Herb Schwartz, president and CEO of Schwartz Biomedical, LLC, and James Cook, MU professor of veterinary medicine and surgery and William C. Allen Endowed Scholar for Orthopedic Research in MU's College of Veterinary Medicine, developed the BioDuct Meniscal Fixation Device. Schwartz and Cook believe that patients with meniscus tears will now be able to have their meniscus saved along with long-term knee function.
"In the past, when faced with meniscus injuries, surgeons were often forced to completely remove the torn meniscal cartilage, leaving a deficient knee that was doomed to develop arthritis," Cook said. "With the BioDuct Meniscal Fixation Device, surgeons will be able to repair torn menisci and induce healing. People with meniscus injuries now have a better future ahead."
The meniscus, a padding tissue that provides shock absorption and joint stability in the knee, is crucial for normal knee function. Surgeries for meniscus tears are common with approximately one million occurring in the United States each year. When meniscus function is deficient, bone rubs on bone and arthritis is likely to develop and progress. Because two-thirds of the meniscus is avascular (lacks a blood supply), a tear in that region will not repair itself. This new device will transport blood and cells from the vascular portion of the knee to the avascular portion of the meniscus. Supplied with blood and cells for healing, the previously untreatable meniscal tear now has the potential for allowing the knee joint to be saved.
Cook's research team performed the BioDuct surgery on 25 dogs that had worst-case scenario meniscal tears. With the BioDuct Meniscal Fixation Device, the meniscus in the dogs' knees had complete or partial repair after a few weeks in all cases.
"Currently, there are no other devices that can provide improved fixation over time," Schwartz said. "Therefore, the BioDuct device is set apart from the rest of the field."
In his research, Cook found that the device will significantly improve healing of avascular meniscal tears both biologically and biomechanically, which should lessen the long-term effects of meniscus injuries, including osteoarthritis. Cook's recent findings were published in the American Journal of Sports Medicine.
"The BioDuct device could impact the industry by improving repairs of the meniscus to such an extent that fewer patients develop arthritis that results from removing the meniscal tissue," Schwartz said. "Thus, with fewer patients developing arthritis, the result could be fewer total joint replacements or at least delaying the need for a total joint replacement."
University of Missouri-Columbia
"In the past, when faced with meniscus injuries, surgeons were often forced to completely remove the torn meniscal cartilage, leaving a deficient knee that was doomed to develop arthritis," Cook said. "With the BioDuct Meniscal Fixation Device, surgeons will be able to repair torn menisci and induce healing. People with meniscus injuries now have a better future ahead."
The meniscus, a padding tissue that provides shock absorption and joint stability in the knee, is crucial for normal knee function. Surgeries for meniscus tears are common with approximately one million occurring in the United States each year. When meniscus function is deficient, bone rubs on bone and arthritis is likely to develop and progress. Because two-thirds of the meniscus is avascular (lacks a blood supply), a tear in that region will not repair itself. This new device will transport blood and cells from the vascular portion of the knee to the avascular portion of the meniscus. Supplied with blood and cells for healing, the previously untreatable meniscal tear now has the potential for allowing the knee joint to be saved.
Cook's research team performed the BioDuct surgery on 25 dogs that had worst-case scenario meniscal tears. With the BioDuct Meniscal Fixation Device, the meniscus in the dogs' knees had complete or partial repair after a few weeks in all cases.
"Currently, there are no other devices that can provide improved fixation over time," Schwartz said. "Therefore, the BioDuct device is set apart from the rest of the field."
In his research, Cook found that the device will significantly improve healing of avascular meniscal tears both biologically and biomechanically, which should lessen the long-term effects of meniscus injuries, including osteoarthritis. Cook's recent findings were published in the American Journal of Sports Medicine.
"The BioDuct device could impact the industry by improving repairs of the meniscus to such an extent that fewer patients develop arthritis that results from removing the meniscal tissue," Schwartz said. "Thus, with fewer patients developing arthritis, the result could be fewer total joint replacements or at least delaying the need for a total joint replacement."
University of Missouri-Columbia
Meniscus Current Events and Meniscus News RSSWhat's been causing your knee to ache? Smurfs!
A new clinical trial seeks to predict who is most likely to experience osteoarthritis, and to test whether an experimental treatment can prevent it altogether. Physicians are setting their sights on people who sustain a knee injury, seeking to understand why nearly half of them will later go on to develop osteoarthritis, a debilitating condition that causes pain and disability in more than 20 million Americans each year.
Researchers mimic vascular system to nourish engineered tissue for transplants
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Embryonic stem cells used to grow cartilage
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New insights into common knee injuries
The sort of swelling that occurs when a joint is damaged by injury or degeneration is normally essential to the healing process, but when it comes to the knee, that inflammation can actually interfere with healing.
Women and arthritis sufferers have poorer short-term recovery from arthroscopic knee surgery
The factors associated with poor short-term recovery from knee surgery appear to be different than those found to mar long-term outcome from the same surgery.
Two-slice-touch rule reliable when diagnosing meniscal tears
The two-slice-touch rule increased the accuracy of diagnosing meniscal tears, according to a study conducted by the Department of Radiology at the University of Wisconsin Medical School and Hospital, in Madison, WI.
Getting ACL tears to heal themselves
A surgeon at Children's Hospital Boston may have found a better way to repair tears to the anterior cruciate ligament (ACL), a knee injury suffered by more than 100,000 Americans each year, particularly teenage girls.
Radiologic signs more than double sensitivity of MRIs
Radiologists can make a more accurate preoperative diagnosis of damage to knee cartilage by using four radiologic 'signs', a recent study found.
Intensive youth soccer participation leads to growth deformations
In this study, 550 Belgian young soccer players were medically examined in different soccer teams at different competitive levels. The observed growth deformations in this study are situated at the knee joint, were an non-symmetrical growth was found. This non-symmetrical growth leads to the so-called 'bowlegs'. This growth deformation is observed in this study from the age of 13, and increases until the age of 18. Not only the incidence of bowlegs increased with ageing, but also the degree of this growth deformation increased. The results of this study, who were unknown before, are clinically important since it is well known that the presence of bowlegs increases the injury rate. Therefore
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