Table 3 The characteristics of 99 patients and 104 hips.

From: Legg-Calve´-Perthes disease - diagnostic value of acetabular-femoral head match index

Number of patients: 99

Stulberg A

Stulberg B

Stulberg C

 

Age▵ (yr): 6.89(3–13)

<6yr: 20 (29.3%)

9 (47%)

7 (37%)

3 (16%)

χ2 = 3.098

P>0.05

≥ 6yr: 79 (70.7%)

17 (26%)

34 (52%)

14 (22%)

Sex

Males (no. [%]): 17 (17.2%)

    

Females (no. [%]): 82 (82.8%)

    

Unilateral/bilateral disease

Unilateral: 93 (93.9%)

    

Bilateral: 6 (6.1%)

    

Number of hip joints: 104

AFMI

P

Stage at first diagnosis

Necrosis : 41 (39.4%)

1.15 ± 0.11*

Group A 1.19 ± 0.01

<0.001

Fragment : 43 (41.3%)

1.22 ± 0.13*

Repair : 20 (19.2%)

1.41 ± 0.04

Group B 1.41 ± 0.04

Stulberg classification

  (Healing stage)

Round and ovoid: 80 (76.9%)

Group A round and ovoid 67 (76.9%) Flat 17 (20.2%)

0.235

Flat: 24 (23.1%)

Group B round and ovoid 13 (65.0%) Flat 7 (35.0%)

  1. ▵The values are given as the mean and the range in parentheses. *Compared with PRF group, the difference is statistically significant, P<0.001).
Back to article page