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Journal of Experimental Orthopaedics

Table 1 HTO classification and proportion

From: Preoperative Ahlbäck radiographic classification grade significantly influences clinical outcomes of double level osteotomy for osteoarthritic knees with severe varus deformity

Ahlbäck grade

Total

(knees)

OWHTO

(knees)

OWDTO

(knees)

TCVO

(knees)

TCVO/OWDTO

(knees)

1

11

7

2

1

1

2

41

27

10

2

2

3

42

22

2

11

7

4

5

3

1

1

0

total

99

59

15

15

10

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