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In the past, TKR was reserved for older persons but as the durability of implant materials has improved, the indications for surgery are being expanded to include younger, active adults.
Each member of the control group was paired with a case group member who was the same sex, similar age group, had the same number of knees replaced and had their TKR within the same time range.
Those who reported a reduction in their physical activity level after TKR were more likely to have revision surgery than those who maintained or increased their activity level.
Candidates for elective TKR should have radiographic evidence of joint damage, moderate to severe persistent pain that is not adequately relieved by an extended course of nonsurgical management, and clinically significant functional limitation resulting in diminished quality of life.
TKR is an elective procedure, and the risks and outcomes vary.
The results of TKR revision are not as good as those of primary TKR, the former being approximately 70 percent in the good-to-excellent range whereas the latter is approximately 90 percent.