Navigation Links
A sporting chance for active total knee replacement patients
Date:3/12/2010

Total knee arthroplasty (TKA) patients may be able to participate in high-impact sports without increasing risk of early implant failure, according to a new study presented today at the 2010 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS). In addition, the authors observed better clinical scores in the group of patients who participated in activities discouraged by the Knee Society (KS) than those of the control group.

The Knee Society recommends TKA patients avoid activities that cause high stress loads on the implant and may increase the risk of early failure. Such activities include high-impact aerobics, football, soccer, baseball, basketball, jogging and power lifting, among others.

"Recent studies have shown that as many as one in six total knee replacement patients participate in non-recommended activities," said Sebastian Parratte, M.D., PhD, an orthopaedic surgeon from the Mayo Clinic in Rochester, MN and the Aix-Marseille University, Center for Arthritis Surgery, Hospital Sainte-Marguerite in Marseille, France. "This study offers some reassurance to those patients who choose to return to an active lifestyle after surgery."

Researchers evaluated outcomes of 218 patients between the ages of 18 and 90 who underwent primary knee arthroplasty at the Mayo Clinic and reported performing heavy manual labor or practicing a non-recommended sport following surgery. The "sport group" was matched by age, gender and BMI to a control group of 317 patients who underwent the same procedure using an identical implant and followed recommended activity guidelines.

Clinical and radiologic results were measured using Knee Society (KS) scores and implant survivorship was evaluated using multivariate analysis according to the Cox model.

At an average follow-up of seven-and-a-half years after surgery, the study found:

  • No significant radiological differences and no significant differences in implant durability could be demonstrated between the sport group and the control group;
  • The sport group showed slightly higher KS Knee and function scores compared to the control group;
  • The control group experienced a 20 percent higher revision rate for mechanical failure (loosening, wear or fracture) compared to the sport group;
  • After accounting for all variables, including co-morbidities, the sport group had a 10 percent higher risk of mechanical failure compared to the control group.

These results were quite surprising to Dr. Parratte and his team.

"We hypothesized that high-impact activities would not increase the risk of implant failure, but we did not foresee that such activities might actually improve clinical results," he said. "It is clear that more research is necessary to evaluate the short and long-term effect of high-impact activities on the durability and function of modern TKA implants."

He added that, although the industry is not ready or able at this point to revise its recommendations, that possibility may exist in the not-too-distant future. In the meantime, he noted that surgeons and patients should continue to follow all industry recommendations relating to recovery following joint replacement surgery.


'/>"/>

Contact: Lauren L. Pearson
pearson@aaos.org
847-384-4031
American Academy of Orthopaedic Surgeons
Source:Eurekalert

Related medicine news :

1. With Record Registration of 13,000 Runners to Date, the 2010 Dicks Sporting Goods Pittsburgh Marathon Announces a Cap of 16,000
2. GNC Becomes a Presenting Sponsor for the Pittsburgh Health & Fitness Expo of the Dicks Sporting Goods Pittsburgh Marathon
3. Tips for Transporting Your Pet in California
4. Making the difficult task of transporting a child with special needs safer
5. Safely transporting a preterm or low birth weight infant
6. A Winning Strategy to Beat Spring Sporting Injuries
7. Study shows why sporting heroes should thank their friends
8. AVMA Opposes Use of Double-Deck Trailers for Transporting Horses and Other Equines
9. Leading-edge body sensor could help produce sporting champions
10. Computer models help raise the bar for sporting achievement
11. Genes, environment, or chance?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/6/2016)... , ... February 06, 2016 , ... ... of eating disorder treatment helps to reduce the frequency and level of relapse. ... Recovery Phase: Re-Establishing Healthy Identity and Purpose,” will explore the critical tasks of ...
(Date:2/5/2016)... ... February 05, 2016 , ... ... of the company's lighter, sleeker next generation LYNX VR Indoor Trainer with multi-rider ... Improvements in design and manufacturing not only reduce the weight of the unit, ...
(Date:2/5/2016)... ... February 05, 2016 , ... The event is being held ... Event Center in Minneapolis, Minn. Triumph Over Parkinson’s will fund nearly $100,000 for research ... Schneiderman’s Furniture, lives with Parkinson’s disease and is the architect of this informative event ...
(Date:2/5/2016)... ... February 05, 2016 , ... Looking for a last-minute Valentine’s Day ... tips of your toes. Foot massage, whether administered by a professional masseuse or a ... The American Board of Multiple Specialties in Podiatry (ABMSP) has taken the ...
(Date:2/5/2016)... ... February 05, 2016 , ... The Lymphoma Research Foundation (LRF) ... and serving the lymphoma community through a comprehensive series of education programs, outreach ... Wine Tasting Event at the La Gorce Country Club in Miami Beach on ...
Breaking Medicine News(10 mins):
(Date:2/5/2016)... -- Amgen (NASDAQ: AMGN ) will present at the ... 9:15 a.m. ET on Wednesday, Feb. 10, 2016, in ... , executive vice president and chief financial officer at Amgen, ... can be accessed from the Events Calendar on Amgen,s website, ... will also be available on Amgen,s website for at least ...
(Date:2/5/2016)... , Feb. 5, 2016  Syneron Medical ... aesthetic device company, announced today that William ... North America, is scheduled to participate in the ... Conference on February 11, 2016 in ... allow institutional investors to meet with the Mr. ...
(Date:2/5/2016)... CENTENNIAL, Colo. , Feb. 5, 2016  As ... about health. The multitude of recommended screenings and tests ... healthy aging a priority. However, for the majority of ... of proactive health planning. For the 37.5 million American ... time like the present to make hearing health a ...
Breaking Medicine Technology: