4-6 months follow- 6-12 months follow- >12 months P Value
  up group up group follow-up group  
Feature (n=26) (n=45) (n=34)  
Age 66 ± 11.5 67 ± 14.0 70 ± 12.3 0.437
Gender 15% male, 36% male, 26% male, 0.184
  85% female 64% female 74% female  
Bilateral 0 0 1 ---
VAS Before Diagnostic 8.52 ± 1.07 8.07 ± 1.11 7.99 ± 1.44 0.209
Block        
VAS After Diagnostic 1.21 ± 1.38 1.42 ± 1.28 2.10 ± 1.40 0.025
Block        
VAS at 3-4 Weeks After 1.59 ± 1.44 1.50 ± 1.86 1.69 ± 1.76 0.898
Treatment (n=97) (n=24) (n=42) (n=31)  
Surgery before study 92% none; 64% none; 77% none; 0.032
  8% not defined; 19% not defined; 23% not defined;  
  0% intervention 17% intervention 0% intervention  
  with artificial with artificial with artificial  
  implants implants implants  
Table 1: Demographic and clinical characteristics, for the entire study population and stratified by time to final follow-up.