All primary total knee replacement patients will undergo the surgical procedure per the surgeon's standard technique. Samples of tissue that is ordinarily removed and discarded as a part of the procedure will be sent to the pathology lab, where the pathologist will prepare and stain the tissue sample to assess for levels of a specific protein thought to be a marker for the likelihood of the soft tissues to form dense versus loose scar tissue. We will then follow each patient's postoperative course to determine if levels of the protein in question, alpha smooth muscle actin (ASMA) correlate with outcomes. Outcomes will include postoperative pain, range of motion, as well as patient-reported satisfaction and function scores.
Low vitamin d levels are common among patients undergoing orthopedic surgery. However, very little is known about how vitamin d affects outcomes in patients undergoing total joint replacement surgery. Our study will look at how common low vitamin d status is among patients undergoing total hip and total knee replacement surgery. We will also look at how vitamin d levels affect complication rates and hospital readmission rates.