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Table 2 Total Amount of Oral Morphine Equivalents by Post - Total Hip Arthroplasty Period and by Revision Status (1 and 5 Years), 2001–2012

From: Opioid use after total hip arthroplasty surgery is associated with revision surgery

  Oral Morphine Equivalent
Amount
(mg range)
Revised within 1 Year Revised within 5 Years
No Yes No Yes
N (%) N (%) N (%) N (%)
Days 1 - 90  
Total N   9743 98.0 200 2.0 9530 95.8 413 4.2
OME Quartiles No Opioid 6108 62.7 109 54.5 5986 62.8 231 55.9
  Low (<150) 639 6.6 14 7.0 620 6.5 33 8.0
  Medium-low (150–349.9) 1192 12.2 25 12.5 1167 12.3 50 12.1
  Medium-high (350–839.9) 920 9.4 27 13.5 902 9.5 45 10.9
  High (≥840) 884 9.1 25 12.5 855 9.0 54 13.1
Days 91-180a  
Total N   9648 99.1 87 0.9 9435 96.9 300 3.1
OME Quartiles No Opioid 7793 80.8 57 65.5 7633 80.9 217 72.3
  Low (<116.5) 453 4.7 3 3.5 438 4.6 18 6.0
  Medium-low (116.5-399.9) 484 5.0 7 8.1 476 5.1 15 5.0
  Medium-high (400–1119.9) 487 5.1 10 11.5 471 5.0 26 8.7
  High (≥1120) 431 4.5 10 11.5 417 4.4 24 8.0
Days 181-270a  
Total N   9586 99.5 52 0.5 9373 97.3 265 2.7
OME Quartiles No Opioid 7822 81.6 34 65.4 7654 81.7 202 76.2
  Low (<116.5) 449 4.7 4 7.7 438 4.7 15 5.7
  Medium-low (116.5-399.9) 442 4.6 6 11.5 432 4.6 16 6.0
  Medium-high (400–1199.9) 450 4.7 4 7.7 438 4.7 16 6.0
  High (≥1200) 423 4.4 4 7.7 411 4.4 16 6.0
Days 271-360a  
Total N   9528 99.7 24 0.3 9315 97.5 237 2.5
OME Quartiles No Opioid 7767 81.5 14 58.3 7607 81.7 174 73.4
  Low (<95) 456 4.8 1 4.2 444 4.8 13 5.5
  Medium-low (95–399.9) 447 4.7 2 8.3 432 4.6 17 7.2
  Medium-high (400–1216.7) 445 4.7 4 16.7 432 4.6 17 7.2
  High (≥1216.8) 413 4.3 3 12.5 400 4.3 16 6.8
  1. OME=oral morphine equivalents
  2. aPatients with revisions or who died in the previous quarter were removed from denominator. In days 91–180 207 were removed (41 were revised and died, 94 died only, and 72 were revised only). In days 181–270 97 were removed (12 were revised and died, 62 died only, 23 were revised only). In days 271–360 86 were removed (12 were revised and died, 58 died only, and 16 were revised only)