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Return-to-Work Rate High After Knee Replacement

Most physically active laborers get back on the job
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WebMD News from HealthDay

By Mary Brophy Marcus

HealthDay Reporter

FRIDAY, March 22 (HealthDay News) -- Getting back to work after knee-replacement surgery is a big concern for people contemplating the procedure. Now, a new study shows that most people return to work after a total knee replacement -- even those with physically demanding jobs.

The research, scheduled for presentation Thursday at the annual meeting of the American Academy of Orthopaedic Surgeons in Chicago, shows that 98 percent of people who undergo total knee replacements are able to go back to work afterward.

"We were very surprised by the results," said study author and orthopedic surgeon Dr. Adolph Lombardi, president of Joint Implant Surgeons, an orthopedic surgery practice in Columbus, Ohio, which specializes in knee and hip replacements. "We're doing an operation that is helping patients to stay in their work environment."

Total knee replacement, also called total knee arthroplasty, is typically recommended when a knee joint is severely damaged by arthritis, said Dr. Fabio Orozco, a joint-replacement surgeon at the Rothman Institute and an assistant professor of orthopedics at Jefferson Medical College in Philadelphia. Orozco was not involved with the research.

Genetics, age, sports injuries and other causes can play a role in the need for knee replacement. The two-hour surgery involves an incision in the knee, cleaning out damaged bone and cartilage, realigning and balancing the joint space, and replacing it with an artificial joint made of special metals and plastics. The aim is to relieve pain and improve function and mobility.

The study involved nearly 700 knee replacement patients from five medical centers who were questioned by an independent survey company.

Sixty-one percent of the study patients were women, and 75 percent were employed during the three months before their knee surgery. They ranged in age from 18 to 60 years old, and the average was 54.

"All of the previous literature was on older patients, so we tried to recruit younger patients," Lombardi said.

Their work environments before knee surgery ranged from sedentary (desk-type work) to highly physical labor.

Although 98 percent of the study participants returned to work, 89 percent returned to the same work they performed prior to their knee surgery. Lombardi said the return-to-work rate for the more labor-intensive categories was especially notable. Ninety-seven percent were able to return to very heavy work, and 98 percent went back to heavy work. Ninety-five percent headed back to sedentary jobs, 91 percent returned to light jobs and 100 percent returned to medium-intensity work.

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