Table 2 Reasons for claims in declining order of frequency, stratified by gender.*In one of the cases, the gender of the patient was not reported

Pain

1

1

56

56

2

2

Infection

82

9

6

1

93

90

Wrong technique

11

6

12

9

48

40

Impaired function/instability

2

0

16

7

11

0

Nerve lesion

2

1

12

7

14

13

Delayed treatment/surgery

5

2

4

10

56

17

Wrong or no indication

10

5

1

0

8

16

DVT or LE

0

2

8

3

0

40

Inadequate preop investigation

3

3

3

1

50

75

Iatrogenic damage

1

2

n/a

n/a

100

100

Development of osteoarthritis

n/a

n/a

1

1

0

0

Stiffness*

1

0

n/a

n/a

100

n/a

Operated wrong knee

1

0

0

1

50

0

Compartment syndrome

1

0

0

1

50

0

CRPS

n/a

n/a

n/a

2

n/a

0

Operation initiated rheumatoid arthritis

n/a

n/a

1

n/a

0

n/a

Death

1

n/a

n/a

n/a

100

n/a

Total

121

31

120

99

50

24