Spinal Doses - THA & TKA

Important to balance of surgical duration and length of PACU stays. 
Recommended doses:
   • Primary TKA 1.5 -1.8 cc 0.5% Bupivacaine
   • Primary THA 2.6 -3 cc 0.5% Bupivacaine

Tips re spinal dosing:
   -Start spinal once previous patient arrives in PACU
  - Look at vertebral height (vs height)
  - If unsure, check with surgeon re expected duration of surgery