Skip to main content

Table 3 MRR categories and reviewers’ tabulations

From: Reliability of medical record abstraction by non-physicians for orthopedic research

Categories/choices

Surgeon

RC1 (1st)

RC1 (2nd)

RC2

Index knee

    

  Left

34

34

35

33

  Right

40

40

39

40

Bilateral operation

    

  Yes

10

10

10

10

  No

64

64

64

61

Arthroplasty approach type

    

  Medial/median peripatellar

70

71

71

73

  Lateral peripatellar

0

0

0

0

  Subvastus/midvastus

3

1

1

1

  Quadriceplasty

0

0

0

0

  Tibial Tubercle Osteotomy/TTO

0

0

0

0

  Other

0

1

2

0

  Not documented

0

1

0

0

Cement fixation

    

  Cemented

72

74

74

68

  Cementless

1

0

0

0

  Not documented

    

Lateral release type

    

  No

56

56

56

56

  Yes – patellar tracking

9

10

10

9

  Yes – tibial femoral alignment

4

5

5

4

  Yes – both patellar tracking and tibial femoral alignment

3

3

3

2

  Not documented/insufficient information

1

0

0

2

Posterior cruciate ligament recession

    

  No

51

55

55

53

  Yes

21

19

19

18

  Not documented

1

0

0

2

Knee alignment

    

  Varus

49

43

43

34

  Valgus

19

18

18

13

  Neutral

3

7

7

3

  Not documented/insufficient information

3

6

6

21

Knee predominant compartment

    

  Medial

49

46

46

44

  Lateral

19

18

18

12

  Even

3

2

2

4

  Not documented/insufficient information

3

8

8

11