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Table 1 Comparison of various variables between the satisfactory and unsatisfactory outcome groups

From: Prognostic factors affecting clinical outcomes after arthroscopic rotator cuff repair: importance of functional recovery by 3 months after surgery

 

Group A

Group B

P value

Age (years)

63.8

60.5

0.26

Sex (n)

 Male

35

9

 

 Female

24

3

0.31

Disease duration (weeks)

10.2

9.6

0.86

Trauma (n)

20

6

0.28

Contracture (n)

23

2

0.13

Diabetes mellitus (n)

6

1

0.85

Workmen’s accident (n)

5

1

0.95

Re-tear (n)

8

2

0.70

Preoperative ROM

 Elevation (°)

109

94

0.22

 Abduction (°)

104

69

0.02b

 Internal rotation (vertebrae)

4.3

4.5

0.90

 External rotation (°)

41

37

0.47

Preoperative muscle strength

 Elevation

0.77

0.70

0.52

 Abduction

0.72

0.51

0.10

 Internal rotation

0.86

0.87

0.90

 External rotation

0.69

0.58

0.39

Preoperative VAS

5.66

5.55

0.91

Postoperative (PO) ROM

 PO 2M elevation (°)

117

96

0.02b

  Abduction (°)

104

85

0.09

  Internal rotation (vertebrae)

2.1

1.0

0.08

  External rotation (°)

29

16

0.03b

 PO 3M elevation (°)

135

107

0.001b

  Abduction (°)

126

92

0.003b

  Internal rotation (vertebrae)

4.1

1.7

0.005b

  External rotation (°)

36

23

0.024b

Postoperative (PO) muscle strengtha

 PO 2M elevation

0.384

0.400

0.85

  Abduction

0.377

0.455

0.44

  Internal rotation

0.711

0.602

0.21

  External rotation

0.514

0.533

0.86

 PO 3M elevation

0.577

0.431

0.07

  Abduction

0.595

0.481

0.21

  Internal rotation

0.838

0.715

0.12

  External rotation

0.765

0.523

0.004b

Postoperative (PO) VAS

 PO 2M VAS

3.01

5.75

0.001b

 PO 3M VAS

2.46

4.71

0.012b

Radiographic findings

 Acromiohumeral interval (mm)

  Preoperative

9.57

9.1

0.64

  Postoperative

12.16

12.42

0.75

 Oizumi classification (n)

  Grade 0

32

3

 

  Grade 1

19

5

 

  Grade 2

6

2

 

  Grade 3

2

2

 

  Grade 4

0

0

0.10

Preoperative findings on MR images

 Cofield classification (n)

  Small

15

0

 

  Moderate

35

6

 

  Large

9

6

0.04b

 Retraction (mm)

14. 31

17.77

0.18

 Width (mm)

20.8

30.9

0.011b

 Goutallier classification

  Supraspinatus (n)

   Stage 0

7

1

 

   Stage 1

27

4

 

   Stage 2

23

3

 

   Stage 3

2

3

 

   Stage 4

0

1

0.13

  Infraspinatus (n)

   Stage 0

34

6

 

   Stage 1

19

5

 

   Stage 2

6

1

 

   Stage 3

0

0

 

   Stage 4

0

0

0.92

  Subscapularis (n)

   Stage 0

39

5

 

   Stage 1

17

5

 

   Stage 2

3

2

 

   Stage 3

0

0

 

   Stage 4

0

0

0.20

 Operative procedure (n)

  Suture bridge

54

11

 

  Single

4

2

0.77

  Partial repair (n)

3

3

0.032b

  1. Data were evaluated by logistic analysis
  2. ROM range of motion, VAS visual analog scale
  3. aMeasured as percentage of unaffected side
  4. bStatistically significant