P0227 Implant Cost is not Associated with Clinically Significant Outcomes in Patients Undergoing Total Knee Arthroplasty

P0383 Psoas Cross-Sectional Area Correlates with Bone Mineral Density and Bone Microarchitecture Parameters among Patients Undergoing Posterior Spinal Fusion

P0971 Audio Distraction for Traction Pin Placement: A Prospective Randomized Controlled Study