- anesthesia and analgesia after total knee replacement- « state of the art » patrick narchi, md...
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- Anesthesia and Analgesia after Total knee replacement-
« State of the Art »
Patrick NARCHI, MD
Centre Clinical
16800- Soyaux
France
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TKR: surgical characteristics
• Surgical risk moderate• Surgical duration 60 – 240
minutes !!!• Bleeding
– intraoperative +–Postoperative +++
• Postoperative pain related to flessum
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Anesthetic technique ?
• GA ? Why not?– Preoperative epidural or femoral catheter
• Spinal anesthesia– Combined Spinal-epidural– Femoral catheter
• Nerve blocks– Psoas block (catheter) + sciatic block– Intraoperative sedation or TIVA
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Prevention of Spinal anesthesia- induced hypotension in the elderly Buggy D, A&A 1997
Cristalloids500 ml
Colloid500 ml
control P =
hypotension 62 39 46 0.1
% vasopressors 45 29 39 0.4
Ephedrine (mg) 6.4 5.9 6.8 0.4
Nausea/vomiting 7 14 7 0.7
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Mortality / Morbidity: RA – GA : No difference
Operating time
Mortality
Cardiovascular morbidity
DVT / Pulmonary embolism
Intra-operative blood loss
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Bleeding after major orthopedic surgery GA = Reg Anesth
Major bleeding
0
1
2
3
4
5
2.32.1
regional anesthesia other anesthesia% major bleeding
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TKR: tourniquet or not ?
• Any effect on bleeding? NO– Hersekli MA, Int Orthop. 2004 – Schuh A, Zentralbl Chir. 2003 – Tetro AM, Can J Surg. 2001– Jorn LP, Acta Orthop Scand. 1999
• Any effect on venous thrombosis?– Wauke K, Arch Orthop Trauma Surg. 2002 Yes– Harvey EJ, J Arthroplasty. 1997 No
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The postoperative challenge !
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Why Regional Analgesia ?
• Superior to iv PCA (opioids)
• Excellent “dynamic analgesia”… 72h
• Avoids opioid-side effects– nausea-vomiting +++– sedation
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Total knee
replacement• Epidural analgesia ?• Psoas, femoral block, iliofascial block ?• Is an obturator nerve block really useful ?• Sciatic block ?• Single shot or catheter?• Infiltration ?
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Peripheral nerve catheters > Epidural
• Efficacy: PNB Epid
• Side effects: PNB < Epid
• Major Complications: PNB < Epid
* Epidural abcess* Epidural hematoma
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Watson M.W, RAPM 2005Spinal anesthesiaSciatic 15 ml levoB
Psoas Catheter: - bolus 25 ml levoB - perfusion
* placebo* L-Bupi
PCA iv (morphine)
Is a femoral catheter re
ally
indicated ?
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Is the catheter really necessary ?
Prolonged analgesia
similar 3 months outcome
Resting and Peak VAS Pain
Systemic analgesic requirement
Functional Outcome
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Sciatic nerve block for total-knee replacement: is it really necessary in all patients ?
Levesque S, Delbos A, RAPM 2005
200 TKR patients
N= 25 (12.5%) needed a single sciatic block in PACU
Predictive risk factors of pain
1- Flessum
2- important preoperative pain
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• PCA Morphine (mg)
23 mg vs 4 mg *
• Vomiting
43% vs 14% *
Pham Dang C, RAPM 2005
Is the femoral catheter enough
or
is a sciatic block necessary ?
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What about 0,3mg spinal morphine ?
Effective
Adverse effects: PONV– Pruritus
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Total knee replacementis the femoral catheter enough ?
- (D0- D1): pain anterior & posterior !The catheter is not enough- Sciatic block (Allen, Weber, Mansour) - morphine: iv PCA, spinal, s/cut …
- (D2- D4): physiotherapy …. - the femoral catheter is sufficient
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Total knee replacment …Regional analgesia >> PCA morphine
• Quality of analgesia• Quality of early physiotherapy: KINETEC• Discharge criteria: Knee Flexion at 90• Duration of physiotherapy +++
• PCA 50 days• Epidural 37 days• PNB 40 days
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Femoral Nerve Block Improves Analgesia Outcomes after Total Knee Arthroplasty
A Meta-analysis of Randomized Controlled Trials
(JE Paul, Anesthesiology 2010)
• Single shot FNB >> iv PCA till 48h• Compared to a single shot FNB:
–Addition of Sciatic block no benefit–Femoral catheter no
benefit
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Functional Outcome after TKR:
Any benefit from Regional
analgesia ?
D0 D3 1w 2-3 months 1year
Colwell 1992Munin 1998
Carli 2010Kadic 2009
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Total knee replacement Regional Analgesia > PCA morphine
But …
The final functional result of the
operated knee is not related to any
analgesia technique or drug …Colwell 1992, Munin JAMA 1998
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Infiltration + intraarticular analgesia vs femoral nerve catheter after TKR
Toftdahl K, Acta Orthopaedica 2007
femoral Infilt + artic statistics
Worst pain score during physical therapy D1
5 3 *
Oxycodone (mg) D1 100 83 * *
Able to hold quadriceps D1 50% 80% * * *
• 80 TKR, spinal anesthesia• Femoral catheter• Infiltr at the end of surg + Intraarticular catheter 2 inj
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INFILTRATION :EFFECTIVE
INFILTRATION VS OPIODS
Better analgesia
Less consumption of opiods
EVIDENCE
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• 150ml Ropi 0,2% • Capsule, muscles, S/cut• Subcutan Catheter
Andersen LO, Acta Anaesth Scand 2010
Infiltration- Bolus effective- Catheter: no efficacy
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Total Knee Replacement
The Past ... The Present ... And the Future !
• Anesthesia GA = Spinal = Blocks• Postoperative Regional Analgesia
–Femoral block is the standard today–Femoral catheter … longer analgesia–Obturator block … weak interest–Sciatic block … for the first 24h–LIA … promising but requires larger surveys
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EARLIEST FUNCTIONAL OUTCOME IMPORTANCE OF ANALGESIA TECHNIQUE
A B C
Day 5Discharge1 month3 month
608090125
809095125
8590 105130
Knee flexion depends on analgesia technique
EVIDENCE
12
0
20
40
60
80
25 h 71 h
Ilfeld BM Anesthesiology 2008
Discharge Critera : adequate analgesia independence from iv analgesics ambulation of at least 30 meters
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Continuous blockade of the lumbar plexus after knee
surgery Dahl JB, Anaesthesia 1988
• TKR under GA & femoral catheter
Urgent urinary drainage : 20% !!!
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Bladder management after total joint arthroplasty Knight RM, J Arthroplasty 1996
Foley intermittent p =ECBU (+) 8% 12% NS
Resondage > J3 16% 25% **
174 patients
Economie - 150 minutes de nursing time- 3000 $ par patient
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EFFECTIVE
LESS SIDE EFFECTS
FAST FUNCTIONNAL RECUPERATION
FEMORAL NERVE BLOCK IDEAL TECHNIQUE
EVIDENCE