Comparative Results

Less Patients Readmitted Within 30 Days

The 30-day all-cause readmission rate was defined as the percentage of patients who had a subsequent hospital admission in the same or a different hospital within 30 days of their THA procedure for any reason.


More Patients Discharged Home
Discharge status indicated the disposition of the patient at discharge from the hospital (home, skilled nursing facility, home health care, inpatient rehabilitation facility).


Lower Blood Transfusion Rates
Transfusion rate was defined as the percentage of patients requiring a transfusion of any kind. Transfusion rates varied from 0.7 to 8.0% for the three centers. This was expected as each center had its own anticoagulation and transfusion protocols.



Shorter Length of Hospital Stay
Length of stay was defined as the number of nights the patient remained in the hospital. Length of stay was zero days if the patient was admitted and discharged on the same day.


Individual results and activity levels after surgery vary and depend on many factors including age, weight and prior activity level. There are risks and recovery times associated with surgery and there are certain individuals who should not undergo surgery. 



  1. AHRQ HCUPnet (2012) Agency for Healthcare Research and Quality H-CUPnet Database, ICD-9-CM Code 81.51 for United States in 2011. Accessed 4 Sept 2014.
  2. Pugely AJ, Callagham JJ, Martin CT, Cram P, Gao Y (2013) Incidence of and risk factors for 30-day readmission following elective primary total joint arthroplasty: analysis from the ACS-NSQIP. J Arthroplast 28(9):1499-1504. Doi:10.1016/j.arth.2013.06.032.
  3. Gofton W, Chow J, Olsen KD, Fitch DA. Thirty-day readmission rate and discharge status following hip arthroplasty using the supercapsular percutaneously-assisted total hip surgical technique. Int Orthop 2015;39:847-51.
  4. Yoshihara H, Yoneoka D (2014) National trends in the utilization of blood transfusions in total hip and knee arthroplasty. J Arthroplast 29(10):1932-1937. doi:10.1016/j.arth.2014.04.029.