Total knee replacement
Last modified: 02 March 2023, 11:23:51 AM AEDT
Anaesthetic considerations1 / 1
-
Pre-op
-
Intra-op
-
Consider GA = can be difficult for patient to lie supine for 1.5 hours
- Spinal
- LMA
- P 2.0-3.0
- Will need higher Ce as the spinal wears off
- Entropy
-
spinal #1
- 4 mL 0.5% heavy bupivacaine
- 100 mcg morphine
- can add 30 - 50 mcg clonidine
- sit up for 15 minutes
- reverse Trendelenburg
- have metaraminol infusion started
-
spinal #2
- 3 mL plain 0.5% bupivacaine
- 20 mcg fentanyl = 0.4 mL
- 100 mcg morphine =
-
propofol TCI 2.5-3
-
midazolam 1-5 mg
-
LMA + GA
-
Technique
- Spinal 2.4 mL heavy + F15 + M100
- Adductor canal catheter
- LMA because supine and AW obstruction
- TAX
-
Post-op
-
Long-acting opioid
- Targin 10/5 BD
- tapentadol SR 50 mg BD
-
Short-acting opioid PRN
- Tapentadol 50mg QID PRN
- Endone 5-10 mg Q3H (has a shorter dose interval than tapentadol)
-
Paracetamol 1g QID
-
NSAID
- celecoxib 200 mg BD
- reduce dose to 100 mg BD for
- elderly = 70+
- low body weight