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Table 3 Functional outcomes

From: Evaluation of the ‘Spaarne soft tissue procedure’ as a treatment for recurrent patellar dislocations: a four-in-one technique

 

All knees

No redislocations

Redislocations

 

No subluxations

Subluxations

 

(n = 34)

(n = 26)

(n = 8)

P-value

(n = 21)

(n = 13)

P-value

IKDC subjective knee form, median (IQR)

54 (43–61)

55 (44–63)

49 (38–60)

0.34

54 (44–63)

53 (41–60)

0.57

LYSHOLM, median (IQR)

76 (56–85)

78 (63–86)

55 (46–73)

0.046

79 (64–87)

61 (49–81)

0.08

KUJALA, median (IQR)

81 (65–88)

83 (69–90)

69 (60–75)

0.06

84 (71–91)

73 (55–83)

0.07

TEGNER preoperative, median (IQR)

3 (2–6)

3 (2–6)

5 (1–7)

0.67

3 (2–7)

5 (2–7)

0.60

TEGNER postoperative, median (IQR)

3 (2–6)

4 (2–6)

2 (1–2)

0.03

1 (1–6)

2 (2–4)

0.17

SF-36

 Physical functioning, median (IQR)

78 (59–91)

85 (63–95)

75 (53–83)

0.18

85 (65–95)

70 (53–88)

0.31

 Pain, median (IQR)

50 (50–70)

50 (50–75)

50 (50–69)

0.61

50 (50–88)

50 (50–63)

0.51

 Physical role limitation, median (IQR)

83 (45–95)

90 (50–95)

48 (38–85)

0.052

90 (63–95)

50 (45–95)

0.15

 General health perception, median (IQR)

73 (53–84)

75 (62–84)

68 (46–83)

0.50

80 (65–85)

70 (40–75)

0.14

NRS rest, median (IQR)

1 (0–4)

0 (0–4)

2 (0–6)

0.25

0 (0–3)

2 (0–5)

0.23

NRS walking, median (IQR)

3 (0–5)

3 (0–5)

4 (2–7)

0.22

3 (0–5)

5 (0–7)

0.16

NRS sports, median (IQR)

5 (3–8)

5 (3–7)

8 (5–9)

0.09

4 (2–7)

7 (4–9)

0.07

Subjective occasional swelling, n (%)

   

0.34

  

0.27

 Never

16 (47%)

14 (54%)

2 (25%)

 

11 (52%)

5 (39%)

 

 Occasionally

10 (29%)

7 (27%)

3 (38%)

 

7 (33%)

3 (23%)

 

 Invalidating

8 (24%)

5 (19%)

3 (38%)

 

3 (14%)

5 (39%)

 

Subjective instability, n (%)

   

0.03

  

0.01

 Never

17 (50%)

15 (58%)

2 (25%)

 

14 (67%)

3 (23%)

 

 Occasionally

8 (24%)

7 (27%)

1 (13%)

 

5 (24%)

3 (23%)

 

 Invalidating

9 (26%)

4 (15%)

5 (63%)

 

2 (10%)

7 (54%)

 

Subjective crepitus, n (%)

   

0.26

  

0.65

 Never

11 (32%)

9 (35%)

2 (25%)

 

8 (38%)

3 (23%)

 

 Occasionally

5 (15%)

5 (19%)

0 (0%)

 

3 (14%)

2 (15%)

 

 Invalidating

18 (53%)

12 (46%)

6 (75%)

 

10 (48%)

8 (62%)

 
  1. IQR Interquartile range, n Number of knees