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Table 2 K-L grade in both group

From: Effect of knee osteoarthritis on the postoperative outcome of proximal femoral nail anti-rotation in the treatment of intertrochanteric fractures in the elderly: a retrospective analysis

K-L grade

Control group(n = 133)

KOA group(n = 121)

0

57

0

I

58

0

II

18

11

III

0

65

IV

0

45

  1. Abbreviation: KOA knee osteoarthritis; K-L Kellgren-Lawrence