Comparing Spinal Anesthesia With 1% Chloroprocaine Versus 1% Mepivacaine in Patients Undergoing Outpatient Primary Total Knee Arthroplasty

Randomized Controlled Trial Comparing Spinal Anesthesia With 1% Chloroprocaine Versus 1% Mepivacaine in Patients Undergoing Outpatient Primary Total Knee Arthroplasty

This study or clinical trial looking to compare 2 types of freezing medications injected into the spinal fluid at the lower back between the vertebrae in patients going to have total knee replacement surgery to check for early legs movement, early discharge from recovery room, walking and hospital discharge. This could save hospital cost of such procedures.

Inclusion Criteria:

• ASA I-III
• Elective outpatient TKA
• BMI less than 40
• Ability to provide surgical consent

Exclusion Criteria:

• Patient refusal
• Opioid tolerant
• Any contraindications to spinal anesthesia
• Chronic opioid use 3months or more