Featured Research

from universities, journals, and other organizations

University Of Florida Orthopaedic Surgeons Test First Implant For Certain Knee Injuries

July 28, 1997
University Of Florida
University of Florida orthopaedic surgeons test first implant for certain knee injuries, made of the achilles tendon of a cow.

By Melanie Fridl RossShands Public Relations

GAINESVILLE, Fla.---It's summer, and snow skiing is the furthest thing from most Floridians' minds. But Eric Bath can't stop thinking about his last dizzying run down a Colorado mountain.

On his final day of vacation several months ago, Bath, of Gainesville, was racing to the bottom when he wiped out, injuring his right knee.

"I went flying," he said. "Once I stopped rolling, I definitely knew I had popped something. I managed to get back to Gainesville, but by the time I got home, I was in a lot of pain and limping severely."

Tests revealed he had a tear in the meniscus, a crescent-shaped shock absorber that prevents the ends of the bones forming the knee joint from rubbing directly against each other.

Conventional arthroscopic surgery to remove the damaged portion would have spelled the end of his daily two-mile jogs and could have put him at risk for severe arthritis. Instead, Bath, 44, opted for an experimental procedure offered by University of Florida orthopaedic surgeons, who replaced the injured section with the first artificial mensicus replacement, made of cow collagen.

"The collagen is organized to recreate the framework of a normal human meniscus," said Peter Indelicato, an orthopaedic surgeon at UF's College of Medicine and the study's principal investigator. "We're studying whether the patient's own tissue will eventually grow and replace the bovine collagen and whether it will function normally at the end of that transformation process."

Researchers are seeking approximately 200 patients at 12 medical centers nationwide, including the Cleveland Clinic, the Hospital for Special Surgery in New York, the University of Washington in Seattle and the Stedman Hawkins Clinic in Vail, Colo., where the research originated. The study is sponsored by ReGen Biologics Inc., of Redwood City, Calif.

Study participants, ages 18 to 60, fall into two categories: those who have undergone partial removal of the meniscus but now complain of pain or discomfort in their knee, and those who have a torn meniscus and are facing surgery to remove it. They are randomly assigned to either receive the investigational implant or undergo traditional surgery to remove the meniscus.

Following surgery, patients remain on crutches for six weeks and must undergo physical therapy. They will be tracked for at least two years. At the end of the first year, surgeons will perform arthroscopic surgery to view the implant and take tissue samples to assess whether the procedure has been effective.

The meniscus is easily damaged with twisting or squatting, Indelicato said. Many times, a portion has to be removed in order to prevent further damage to the knee joint. As people age, the meniscus becomes more brittle, losing its elasticity.

"At the age of 40 or 50, getting out of the car or squatting down to tie your shoe could be all that's necessary to tear the structure," said Indelicato, also team physician for the Florida Gators and former team physician for the Miami Dolphins.

"After part of the meniscus has been removed, the knee becomes vulnerable to developing some arthritic changes," he added. "Anything that would increase the loading of the knee, such as a patient being overweight or the pounding of an intense jogging program, would accelerate this wearing out or arthritic process in the knee joint."

Bath said if the implant doesn't work it will be removed.

"I'm very physically active," he said. "That's why I wanted to go through this. I'm hoping the long-term benefits will outweigh any short-term inconvenience."


Recent UF Health Science Center news releases also are available on the UF Health Science Center Communications home page. Point your browser to http://www.vpha.health.ufl.edu/hscc/index.html

Story Source:

The above story is based on materials provided by University Of Florida. Note: Materials may be edited for content and length.

Cite This Page:

University Of Florida. "University Of Florida Orthopaedic Surgeons Test First Implant For Certain Knee Injuries." ScienceDaily. ScienceDaily, 28 July 1997. <www.sciencedaily.com/releases/1997/07/970728082511.htm>.
University Of Florida. (1997, July 28). University Of Florida Orthopaedic Surgeons Test First Implant For Certain Knee Injuries. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/1997/07/970728082511.htm
University Of Florida. "University Of Florida Orthopaedic Surgeons Test First Implant For Certain Knee Injuries." ScienceDaily. www.sciencedaily.com/releases/1997/07/970728082511.htm (accessed July 31, 2014).

Share This

More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations

Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.


Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News


      Free Subscriptions

      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile

      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?

      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins