According to the assessment standard of arthroplasty of American Knee Association, the excellent and good rate is92percent based on comprehensive evaluation for movement and function score.
按美国膝关节学会人工关节置换术后疗效评定标准，运动、功能综合评定优良率达92%。
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This document is an American Water Works Association (AWWA) standard. It is not a specification.