Three primary reasons prolong hospital stays following unilateral knee arthroplasty. Pain is the primary reason followed by opioid drowsiness and nausea/vomiting side effects. Standard genicular radiofrequency ablation (t-RFA) has been effective pain management for non-operative knee pain associated with osteoarthritis. Additionally, cooled radiofrequency ablation (C-RFA), is now available for knee pain management. Both t-RFA and C-RFA offer minimally invasive, non-surgical, non-opioid pain relief options following surgery. The study will perform a double-blinded, parallel grouped, placebo-controlled randomized study to compare three pain management paradigms involving preoperative genicular C-RFA, t-RFA, and control placebo/sham. The aim of this study is to establish if C-RFA and t-RFA, offered preoperatively to patients undergoing unilateral knee arthroplasty, provide postoperative pain relief.