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Table 3 Outcomes Regarding Hip Function

From: Monobloc implants in cementless total hip arthroplasty in patients with Legg-Calve-Perthes disease: a long-term follow-up

Variables, mean ± SD Patients (N = 71) P
Preoperative Postoperative
HHS
 Mean in points 46.42 ± 6.11 89.70 ± 5.46 0.01
 Rating [no.[%]of patients]    
 Excellent (90–100 points) 0 45(64.38%)  
 Good (80–89 points) 0 23(32.39%)  
 Fair (70–79 points) 0 3(4.23%)  
 Poor (<70) 71(100%) 0  
VAS Pain 5.11 ± 1.30 0.30 ± 0.54 0.01
ROM
 Flexion 90.13 ± 11.24 120.32 ± 4.94 0.01
 Abduction 29.28 ± 5.50 41.26 ± 3.73 0.01
HOOS
 Symptoms 11.37 ± 2.40 17.19 ± 1.45 0.01
 Pain 19.39 ± 5.90 37.32 ± 2.05 0.01
 Daily living 34.80 ± 3.78 65.77 ± 1.17 0.01
 Sports and recreational activities 8.07 ± 1.77 14.55 ± 1.96 0.01
 Quality of life 6.62 ± 1.21 13.42 ± 1.31 0.01
SF-12    
 PCS 15.80 ± 2.69 23.11 ± 2.78 0.01
 MCS 16.63 ± 2.80 24.55 ± 3.13 0.01
Limp [no.[%]of patients]    0.01
 Severe 0 0  
 Moderate 34(47.89%) 0  
 Slight 20(28.17%) 3(4.23%)  
 None 17(23.94%) 68(95.77%)  
Limb length discrepancy
 Mean in mm 24.3 ± 7.8 2.4 ± 2.8 0.01
 Rating [no.[%]of hips]    
  < 10 5(5.68%) 87(98.86%)  
 10–20 21(23.86%) 1(1.14%)  
 20–30 36(40.91%) 0  
 30–40 26(29.55%) 0  
  1. HHS Harris Hip Score, VAS Visual Analogue Scale, HOOS Hip dysfunction and Osteoarthritis Outcome Score, ROM range of motion; SF-12: 12-item short-form health survey questionnaire, PCS physical component summary, MCS mental component summary