Navigation Links
Emerging Techniques Put a New Twist on Ankle Repair
Date:7/1/2009

Using cells grown in a lab, new treatments eliminate risks of traditional procedures

ROSEMONT, Ill., July 1 /PRNewswire-USNewswire/ -- People with ankle injuries who do not respond successfully to initial treatment may have a second chance at recovery, thanks to two new procedures developed to restore the injured area, according to a study published in the July 2009 issue of the Journal of the American Academy of Orthopaedic Surgeons (JAAOS).

The study reviews emerging techniques that have proven successful in treating injuries to the talus, the small bone, which is located between the heel bone and the lower bones of the leg. The talus helps form the ankle joint.

Although most injuries to the talus can be successfully treated using traditional "first-line" therapies involving removal of dead tissue (called "debridement") and drilling, about one-fifth to one-quarter of people with ankle injuries need additional "second-line" restorative treatment to heal successfully, said lead author Matthew Mitchell, M.D., an orthopaedic surgeon in private practice in Casper, Wyoming.

The two new techniques rely on cells grown in a lab, and eliminate the need for ostetomy (cutting the bone of the tibia) in some cases, he said.

  • Autologous chondorcyte implantation, or ACI, involves removing cartilage cells from the knee or the ankle and growing them in a lab. Once grown, the cartilage is transplanted to the talus. ACI usually involves an ostetomy in order to implant the cells.
  • In matrix-induced autologous chondrocyte implantation, or MACI, cells are grown on a special backing material, or "matrix," and then transplanted to the talus. In the authors' experience, an osteotomy is not necessary to implant the cells.

Of these two techniques, the newer MACI technique may offer the most benefits to the patient, according to Dr. Mitchell.

"Both ACI and MACI show a lot of promise, but I think the advantage of MACI is that an osteotomy is not necessary in order to successfully implant the matrix," he said. "You only need to make an incision to place the graft, which decreases the morbidity of the procedure quite a bit."

"In my experience so far with this emerging technique in Australia, the results have been as good as, or better than, other restorative techniques," he added. MACI is currently considered investigational by the FDA in the United States.

Traditional restorative techniques involve removing a cartilage donor plug from the knee and implanting it over the ankle injury, or "lesion." This requires an operation on the knee and cutting the bone (osteotomy) of the tibia to accommodate the graft. As a result, these traditional techniques involve potential problems, including:

  • pain in the donor knee
  • tissue damage in the donor knee
  • tissue damage in the ankle as a result of osteotomy

"In most individuals, results are favorable with reparative techniques, such as debridement and drilling," said Dr. Mitchell. "The lesions that are problematic and which don't respond well to reparative treatments are lesions that are larger, and those which are fairly deep, as well as lesions which have a cyst-like structure. Whether or not an ankle "lesion" requires additional treatment after an initial reparative procedure often depends upon several factors, including: size, depth and structure of the legion.

"Once you've performed a reparative technique and the patient still doesn't heal properly, then we would move on to a second-line restorative treatment," he said

Disclosure: Dr. Giza or a member of his immediate family serves as a paid consultant to or is an employee of Arthrex. Neither of the following authors nor a member of their immediate families has received anything of value from or owns stock in a commercial company or institution related directly or indirectly to the subject of this article: Dr. Mitchell and Dr. Sullivan.


'/>"/>
SOURCE American Academy of Orthopaedic Surgeons
Copyright©2009 PR Newswire.
All rights reserved

Related medicine news :

1. SeprOx Receives Texas Emerging Technology Fund Award
2. New Survey Highlights Growing Concern About Risk of Infection in Cancer Patients and Emerging Antibiotic Resistance
3. Launch of Highly Anticipated Oral Agents and Increasing Use of Current and Emerging Injectable Drugs Will Drive the Multiple Sclerosis Drug Market to Nearly $10 Billion in 2018
4. Pro-cell Announces a Knock at the Door of Emerging Markets
5. CorNova to Present at the Glimpse into the Future: Emerging Drug-Eluting Stents Symposium at EuroPCR 2009
6. PCIs Response to Swine Flu Evolves to Keep Pace with Emerging Health Threat
7. For Bipolar Depression, Surveyed Experts Indicate That Current and Emerging Therapies Have No Advantage Over Seroquel in Decreasing the Severity of Symptoms
8. Frost & Sullivan: The Pharmaceutical Customer Relationship Management Market - What are the Emerging Trends and Opportunities?
9. Emerging Markets for Diagnostic Imaging Systems Hurt by Economic Crisis
10. For Reducing Mortality, Current and Emerging Therapies Have No Advantage Over Carvedilol in the Treatment of Coronary Heart Disease (Stable Angina)
11. For Erectile Dysfunction, Physicians Indicate That Opportunity Exists for Emerging Therapies with Improved Efficacy in Difficult-to-Treat Patient Subpopulations
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... N.J. (PRWEB) , ... October 13, 2017 , ... The ... Holly Day Market. Featuring a collection of specialty vendors and unique items from across ... personalized and quality-focused health and wellness services offered by the VNA. The boutique ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... ... DevOps and Agile Software Development, has been awarded a contract by the Center ... Purchase Agreement (BPA) aims to accelerate the enterprise use of Agile methodologies in ...
(Date:10/12/2017)... New Orleans, LA (PRWEB) , ... October 12, 2017 , ... ... fitness centers in the U.S., announced today its plans to open a flagship location ... club will occupy the former Rooms To Go store next to Office Depot in ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... drug delivery system that we intend to develop to enable prevention of a ... lead to severe hearing loss, especially in pediatric patients. For cisplatin, hearing loss ...
(Date:10/12/2017)... ... October 12, 2017 , ... Women-owned and Grand ... Best and Brightest in Wellness® by Best and Brightest. OnSite Wellness will be ... Oct. 20 from 7:30 a.m. to 2 p.m. at the Henry Autograph Collection ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... PARK, Calif. , Oct. 11, 2017  BioPharmX ... national scientific team that developed an innovative way to ... quantity of the delivery of new drugs. ... 2017 Fall Clinical Dermatology Conference will show how researchers ... General Hospital, Harvard Medical School used a suite of ...
(Date:10/10/2017)... COUNTY, Calif. , Oct. 10, 2017  NDS received FDA ... Mobile  — a medical-grade battery-powered display stand specifically designed for endoscopy ... to transform technology into a clinical solution to support the improvement ... Innovative Design ... ZeroWire Mobile Wireless Solution ...
(Date:10/4/2017)... Korea , Oct. 4, 2017  South Korean-based ... next-generation CPR training aide "cprCUBE" on Kickstarter. The device ... compression during cardiac arrests with better efficiency compared to ... also offers real-time feedback on efficacy of the compression ... crowdfunding campaign has a goal to raise $5,000. ...
Breaking Medicine Technology: