Objective: To determine if patient factors affect patient reported outcomes in simple primary total joint arthroplasty surgery.
Methods: Thirty four patients selected in this cross sectional study were obtained from a prospective cohort of post operative patients who underwent joint replacement surgery in the Port-of-Spain General Hospital from September 1st 2013 to December 31st 2014. Statistical analysis was done to compare patient factors with patient reported outcomes measures (PROM) and establish any relationships between groups. Oxford Hip or Knee Score (OHS/OKS) and Short Form 12 (SF12) scores were compared with age, gender, diagnosis, body mass index (BMI)/ weight class, pain, patient expectations and Beck’s Depression Inventory (BDI).
Results: There was correlation between Oxford scores and BMI, pain and depression. There was also correlation between SF12 scores with respect to pain and depression. These patient factors showed an inverse relationship with PROMs and were statistically significant.
Conclusions: This study identified patient factors that influenced PRO scores with respect to functionality and quality of life. Obesity does not result in worse post operative outcomes.