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Table 1 Demographic criteria of our patients

From: Impingement-free hip range of motion after osteochondroplasty and relative neck lengthening in adults with healed Perthes disease

Patient number Age Sex Side Max follow-up (months) Stulberg class Anterior impingement test
1 19 M Rt 60 III +ve
2 23 F Rt 60 IV
3 25 F Lt 56 II
4 30 M Lt 53 V
5 26 M Lt 50 II
6 22 F Rt 50 III
7 20 M Rt 49 IV
8 20 M Lt 40 III
9 28 F Lt 30 IV
10 28 M Lt 30 III
11 33 F Rt 30 IV
12 38 M Rt 30 III
13 40 F Rt 29 IV
14 37 F Rt 26 II
15 30 M Lt 25 II
16 32 F Rt 25 II
17 30 F Rt 23 II
18 20 M Rt 22 II
19 19 M Rt 22 IV
20 20 F Rt 20 II
21 19 M Lt 20 III
22 22 F Rt 18 III
23 21 M Rt 16 IV
24 34 M Lt 15 III
25 29 F Lt 15 IV
26 26 M Rt 14 IV
27 33 F Lt 14 IV
28 23 M Lt 13 IV
29 19 F Lt 12 IV
30 20 M Lt 12 III