Table 1 The preoperative scores and postoperative scores after four years

Lysholm score

 Pain

0

25

 Instability

0

25

 Locking

0

15

 Stair climbing

0

10

 Limp

0

5

 Support

0

5

 Swelling

0

6

 Squatting

0

5

 Overall

0

96

The hospital for special surgery (HSS) score

 Pain

5

30

 Function

0

20

 ROM

4

18

 Muscle strength

4

10

 Flexion deformity

8

10

 Instability

8

10

 Subtraction

-3

0

 Overall

26

98

Rasmussen clinical assessment

 Pain

2

6

 Walking capacity

0

4

 Extension

4

6

 ROM

1

6

 Stability

4

6

 Overall

11

28

Rasmussen radiological assessment

 Depression

6

6

 Condylar widening

2

6

 Augulation (varus/valgus)

4

6

 Overall

12

18