And though excited and intrigued by the research, Einhorn warned that people should not get their hopes up too soon.
"It's not an answer for the middle-aged patient who has arthritis now, but it may be an answer for the middle-aged patient who has arthritis in the next 10 to 20 years," he said.
The American Academy of Orthopaedic Surgeons has more on joint replacement.
SOURCES: Thomas A. Einhorn, M.D., chairman, department of orthopaedic surgery, and professor, orthopedic surgery, biochemistry and biomedical engineering, Boston University, Boston; James L. Cook, D.V.M., Ph.D., director, Comparative Orthopaedic Laboratory, William C. Allen endowed scholar for orthopaedic surgery, and associate professor, orthopedic surgery and small animal orthopedics, University of Missouri, Columbia, Mo.; Aug. 7, 2010, The Lancet
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