Background The relationship between morbid obesity and long-term patient outcomes after
primary total hip arthroplasty (THA) has been understudied. The purpose of this study was to
determine the association between morbid obesity and 10-year complications (revision
surgery, reoperation, dislocation) and mortality in patients undergoing primary THA.
Methods We conducted a population-based cohort study of patients aged 45–74 years who
underwent primary THA for osteoarthritis between 2002 and 2007 using Ontario …

The purpose of this population-based study was to determine the association between
morbid obesity and 10-year mortality and complications in patients undergoing primary THA.
A cohort study of 22,251 patients, aged 45–74 years old, treated with primary THA between
2002 and 2007 for osteoarthritis, was conducted using Ontario administrative healthcare
databases. Patients were followed for 10 years. Risk ratios (RRs) of mortality, reoperation,
revision, and dislocation in patients with body mass index (BMI)> 45 kg/m2 (morbidly obese …