Table 1 reflects the total number of procedures performed and the incidence of THA per 100,000 inhabitants in each year.
Overall crude incidence had increased from 99 to 105 THA per 100.000 inhabitants from 2001 to 2008 (p < 0.001).
All participating surgeons (n = 4) performed greater than 50 THA per year and all surgeries occurred in a high volume (>1500 THA annually) tertiary center that followed a standardized inpatient clinical pathway.
In this period a total of 161, 791 discharges of patients having undergone primary total hip arthroplasty were identified and the overall crude incidence increased from 99 to 105 THA per 100, 000 inhabitants (p < 0.001) [ 19].
Aggregated mean intravenous PCA equipment and opioid cost per patient were $196 (THA), $204 (TKA), and $243 (abdominal surgery).
Lower-middle-income countries (35): AGO, ALB, BOL, BTN, CHN, CMR, COD, COL, CPV, DJI, DOM, ECU, EGY, FJI, GTM, HND, IDN, IRN, IRQ, JAM, JOR, LKA, LSO, MAR, MDV, NAM, PER, PHL, PRY, SLV, SUR, SWZ, SYR, THA, TUN.
The hospital-level variables possibly affecting the outcome of primary surgery were constructed for each calendar year (share of hospital arthroplasty volume taken by THA, hospital's femoral model use per 100 THAs, and hospital hip arthroplasty volume).
Official retrospective statistics revealed over 500,000 cases of THA were performed per annum in the US alone, but failure cases brought about more than 40,000 revision procedures among them.
The aggregated mean total intravenous PCA/opioid costs per patient were $196 for THA, $204 for TKA, and $243 for abdominal surgery.
Furthermore, interpretation of some of these trials is hindered by the fact that NSAID was only given in the LIA group but not in the control group (Andersen et al. 2007a,b, Busch et al. 2010), since NSAID per se is effective in THA (Fischer et al 2005).
