Skip to main content

Table 1 Demographics and clinical results

From: Subtrochanteric shortening osteotomy during cementless total hip arthroplasty in young patients with severe developmental dysplasia of the hip

Indicator

Pre-op clinical features

Overall (Pre-op)

Overall (Post-op)

P Valuea

Crowe Type-III

Crowe Type-IV

No. of hips

8

48

56

56

 

Gender (No. of pts)

 Male

0

9

9

–

 

 Female

8

34

40

–

 

Affected side (No. of hips)

 Left

3

21

24

–

 

 Right

5

17

22

–

 

 Bilateral

0

10

10

–

 

Harris Hip Score

 Mean in points (range)

54.6 (48–59)

38.2 (23–57)

40.6 (23–59)

87.4 (77–98)

<0.01

 Rating (no. of hips)

     

  Excellent (90–100 points)

0

0

0

15

 

  Good (80–89 points)

0

0

0

39

 

  Fair (70–79 points)

0

0

0

2

 

  Poor (<70)

8

48

56

0

 

PMA

 Mean in points (range)

7.6 (6–9)

6.5 (4–9)

6.6 (4–12)

16 (14–18)

<0.01

  Pain

2.5 (2–3)

2.1 (1–4)

2.2 (1–4)

5.5 (5–6)

<0.01

  Motion

2.4 (2–3)

2.3 (1–3)

2.3 (1–3)

5.2 (5–6)

<0.01

  Function

2.6 (2–3)

2.0 (1–3)

2.1 (1–3)

5.3 (4–6)

<0.01

 Rating (no. of hips)

  Excellent (18 points)

0

0

0

6

 

  Good (15–18 points)

0

0

0

43

 

  Fair (12–15 points)

0

0

0

7

 

  Poor (<12 points)

8

48

56

0

 

Limp (no. of Pts.)

 Severe

3

28

31

0

 

 Moderate

4

15

19

3

 

 Slight

1

5

6

11

 

 None

0

0

0

42

 

Limb-length discrepancy

 Mean in mm (range)

2.8 (2.1–3.7)

4.4 (2.3–6.5)

4.2 (2.1–6.5)

1.1 (0.6–1.4)

<0.01

   < 1 cm (no. of hips)

0

0

0

24

 

  1–2 cm (no. of hips)

0

0

0

32

 

  2–3 cm (no. of hips)

5

4

9

0

 

  3–4 cm (no. of hips)

3

13

16

0

 

  4–5 cm (no. of hips)

0

18

18

0

 

  5–6 cm (no. of hips)

0

10

10

0

 

   > 6 cm (no. of hips)

0

3

3

0

 

HOOS subscale scores

 Symptoms

10.8 (8–12)

8.8 (4–12)

9.1 (4–12)

16.6 (14–19)

<0.01

 Pain

20.6 (17–24)

15.9 (6–23)

16.6 (6–24)

36.5 (34–40)

<0.01

 Activities of daily living

34.1 (32–37)

28.7 (19–36)

29.4 (19–37)

60.9 (57–67)

<0.01

 Sports and recreation

7.4 (5–8)

5.5 (3–8)

5.8 (3–8)

12.8 (10–16)

<0.01

 Quality of life

6.9 (5–8)

5 (3–8)

5.3 (3–8)

13.7 (12–16)

<0.01

Trendelenburg sign (no. of hips)

 Yes

6

47

53

1

 

 No

2

1

3

55

 

SF-12

 PCS

15.5 (12–17)

10.9 (6–16)

11.6 (6–17)

22.7 (19–25)

<0.01

 MCS

18.3 (15–20)

13.8 (9–19)

14.4 (9–20)

25.6 (22–29)

<0.01

  1. Values are expressed as mean with range
  2. MAP Merle d’Aubigne and Postel, PCS Physical component summary, MCS Mental component summary, ROM range of motion, HOOS Hip dysfunction and Osteoarthritis Outcome Score
  3. a P < 0.05 is significant