Total knee and hip arthroplasty is often performed for severe cases of osteoarthritis. It is generally performed on older patients, usually over 55 years of age, and is more common in obese patients (“Hip and Knee Replacement Surgery FAQs,” n.d.; Namba et al. 2005) It is well documented that joint arthroplasty population has a high number of comorbidities at the time of surgery, which can greatly affect surgical outcomes. The presence of multiple comorbid diseases has been shown to increase patient’s length of stay and lead to greater utilization of resources after a total knee arthroplasty (Pugely et al. 2014). It may also delay diagnosis, alter treatment, lead to complications, influence survival, and confound analysis of outcomes (Feinstein1970).