Pre vs Post Block in Total Knee Arthroplasty (TKA)

Inclusion criteria

1- Patients 18 or older 2 - Patients undergoing primary total knee replacement at the University of Miami Hospital 3 - Patients that have capacity to provide medical consent

Exclusion criteria

• All patients under the age of 18
• Prisoners, uncontrolled diabetics, increased risk of bleeding, pregnant women, women planning on becoming pregnant in the next year, and women who think they might be pregnant.
• Patients with prior surgery or history of infection on the joint of interest.
• Patients on steroid preoperatively.
• Inability to provide medical consent.
• Patients with a history of significant unmitigated pain in parts of their body not including the knee the procedure is to be performed or a history of pain catastrophizing (the tendency to magnify the threat value of the pain stimulus and to feel helpless in the context of pain, and by a relative inability to inhibit pain-related thoughts in anticipation of, during or following a painful event) regarding pain anywhere in the body.
• Any condition that, in the opinion of the investigator, would compromise the well-being of the patient or the study or prevent the patient from meeting or performing study requirements will exclude the participant.
• Allergy to local anesthetic or any medication used in the standard protocol for joint replacement.