Anaesthesia for THR
- Following preop assessment, IV insertion, attachment of
monitoring
- Lateral position , always L side down (for a R handed
anaesthetist)
- Spinal inserted, 2.6 – 2.8 mls heavy bupivacaine 0.5%
with fentanyl 10 mcg
- For R THR move patient to R side down. For L leave in L
lateral position for 5 minutes
- Cephalothin 2 gm IV unless allergic
- Position on operating table
- Give midazolam 2 mg depending on age etc
- Propofol 20 – 30mg boluses intermittently keeping
patient able to still communicate but sedated (or infusion 10 –
20 mls per hour)
- Headphones on patient with music
- Hartmanns solution 1 – 1.5 L intraoperatively,
more if significant bleeding
- Metaraminol 0.5 mg IV boluses to maintain systolic BP
> 90, higher if elderly or history of hypertension
- Parecoxib 40 mg IV if no contraindications,
paracetamol 1 gm
- Dexamethazone 4 mg IV for PONV prophylaxis
- Postop analgesia PCA morphine ) 0.5 – 1 mg bolus, 5
minute lockout 10 – 20 mg 4 hr dose limit.
- Also paracetamol 1 gm 6/24 for 24/24, oxycodone 5 – 20
mg O 4/24 PRN only when PCA ceased, tramadol 50 – 100 mg O / IM
PRN 8/24
- Clexane 20 – 40 mg S/C 6/hours postop then daily
thereafter until discharge.
Comment 1
"for THR or TKR, does anyone also give a gentle SVGA with LMA.
If you speak to a lot of patients about being awake and hearing
loud noises, most of them will say put me to sleep as well.
Sometime it is easier to control their airway with LMA then hudson
mask and holding their jaw up"