Table 10 Effect of minimum volume requirements suspension in 2011 on quality indicator values for total knee arthroplasty (TKA)

From: Impact of suspending minimum volume requirements for knee arthroplasty on hospitals in Germany: an uncontrolled before–after study

  Multifactorial MANOVA, paired sample Bonferroni-adjusted post-hoc-tests
TKA Quality Indicator   2010 2012 2013 2014 2010 versus 2012 2012 versus 2013 2013 versus 2014
TKA meets indication criteria Mean 94.78 95.91 96.06 96.57    
p < 0.001 < 0.001 1.000 0.223
Perioperative antibiotic-prophylaxis applied Mean   99.62 99.77 99.66    
p < 0.001   0.007 0.295
Postoperative mobility (neutral zero method) measured Mean 97.32 98.37 97.68 98.46    
p < 0.001 0.003 0.002 < 0.001
Postoperative mobility of at least 0/0/90 (neutral zero method) Mean 88.22 90.84 91.59 91.71    
p < 0.001 < 0.001 0.160 1.000