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. 2014 Jun 5;473(1):90–93. doi: 10.1007/s11999-014-3712-9

Table 2.

Age distribution (years) among the different groups

Type of TKA Number Mean Median SD Range
De novo TKA 118,229 69.7 70.5 8.5 34–85
TKA after closed wedge 356 59.8 60.1 7.3 41–80
TKA after open wedge 482 59.1 59.5 7.5 34–85
TKA after UKA 920 66.2 65.3 8.6 44–85

UKA = unicompartmental knee arthroplasty.