Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Analgesic Efficacy of Saphenous Nerve Block in Total Knee Replacement

21. november 2013 opdateret af: DR. Jassim Rauf, Cork University Hospital

Does Saphenous Nerve Block Improve Analgesia After Total Knee Replacement When Used in Combination With Local Infiltration Analgesia? A Prospective Randomised Double Blinded Trial.

We hypothesize that preoperative saphenous nerve block (SNB) in combination with periarticular local infiltration provides better post operative pain relief (POPR) profile as compared to local infiltration alone

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Introduction:

Local infiltration analgesia (LIA) is considered acceptable after total knee replacements (TKR) in terms of analgesia, ease of performance, early mobilization and early hospital discharge . Continuous femoral nerve block has been used to enhance post op pain relief (POPR) for TKR but at the expense of motor blockade . A Sub sartorial approach to saphenous nerve block (SNB) spares the motor block . To date the role of saphenous nerve block for POPR in TKR has not been evaluated.

Methodology:

In order to test this hypothesis, we proposed to carry out a prospective randomized controlled double blinded (surgeon and assessor) trial study. With institutional ethics approval and having obtained written informed consent from each patient, 20 ASA 1 - 3 patients scheduled to undergo TKR under spinal anesthesia +/- sedation were allocated to one of two groups i.e. Group (SNB): patients receiving SNB sub sartorial approach and Group (NSNB): patients not receiving SNB.

Group allocation was determined using computer generated random number tables. Sealed envelopes were opened on the day of the surgery by the attending anesthetist responsible for the care of the recruited patient.

Postoperative period:

Patients were then assessed for pain at rest and on movement on arrival in recovery and then at 6 , 12 and 24 hrs. Visual analogue scale on a 10 cm straight line was used to assess postoperative pain scores as predictive value of post operative analgesia on rest and movement i.e passive flexion of knee to 30 degree . Patients were assessed for any motor block by using maximum tolerable range of active knee flexion (MKF) and maximum range of straight leg raise(MSLR) on arrival in recovery and at 6, 12 and 24 hrs. All patients received regular paracetamol 1g 6 hourly, diclofenac 75 mg 12 hourly, oxycontin 10-20 mg ( depending on age) 12 hourly and oxynorm 10 mg as rescue analgesia.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

20

Fase

  • Fase 4

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Irland
      • Cork, Irland, 0000
        • Dept. of Anaesthesia & Intensive Care Unit, Cork University Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 85 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

American Society of Anaesthesia (ASA) Grade I-lll patients Undergoing elective Total Knee Arthroplasty Patients able to consent and understand all the components of the study.

Exclusion Criteria:

Demented patients Patients having bilateral Knee Replacements Patients unable to comprehend the use of pain scales Allergy to any of the medications used in the study Renal dysfunction Coagulation disorders Peptic ulcer disease precluding use of non-steroidal anti-inflammatory drugs (NSAIDs) Patients unable to use regular opioid medication Any chronic pain condition other than osteoarthritis of the knee.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: SNB Saphenous Nerve block
Patients received SNB preoperatively at mid thigh level with ultrasound guidance. 10 mls 0.5% bupivacaine was administered for nerve block by the anesthetist. All patients also received peri operative Local Infiltration Analgesia by the surgeon. All patients will receive preoperative oxycontin, peri operative paracetamol and diclofenac. Post operatively all patients received regular paracetamol 1g 6 hourly, Diclofenac sodium 12 hourly and oxycontin 10-20 mg 12 hourly. All patients received standardized spinal block by the same anesthetist, post nerve block for surgery.
Procedure: SNB Saphenous Nerve Block
Patients in group SNB received an ultrasound guided SNB (a sub sartorial approach) by a single operator with 10 mls 0.5% bupivacaine. At the end of surgery periarticular knee infiltration of 30 mls 0.5% levobupivacaine + 70 mls 0.9% saline + 0.5 mg adrenaline was performed in a staged fashion by the surgeon, beginning with infiltration of the deep structures on tibial surface at 1mm depth around all exposed tissues, medial and lateral collateral ligament origin, all cut surfaces of extensor mechanism, all cut surface of skin and subcutaneous tissue
Andre navne:
  • Bupivacain
  • 0,9% NaCl
  • Adrenalin
  • Levobupivacain
Aktiv komparator: NSNB Non Saphenous Nerve Block
Patients only received Local Infiltration Analgesia. As per protocol all patients received the same pre, peri and post operative analgesia as described in the experimental group. All patients had a standardized spinal block for surgery.
Procedure: NSNB Non Saphenous Nerve Block
All patients at the end of surgery received periarticular knee infiltration of 30 mls 0.5% levobupivacaine + 70 mls 0.9% saline + 0.5 mg adrenaline, in a staged fashion by the surgeon, beginning with infiltration of the deep structures on tibial surface at 1mm depth around all exposed tissues, medial and lateral collateral ligament origin, all cut surfaces of extensor mechanism, all cut surface of skin and subcutaneous tissue
Andre navne:
  • 0,9% NaCl
  • Adrenalin
  • Levobupivacain

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Pain on movement at 24 hours time point post operatively
Tidsramme: 24 hours hours time point
24 hours hours time point

Sekundære resultatmål

Resultatmål
Tidsramme
pain on movement at 6 and 12 hour time point
Tidsramme: 6 and 12 hours time points
6 and 12 hours time points
pain at rest at 6, 12 and 24 hours time points
Tidsramme: 6, 12 and 24 hours time points
6, 12 and 24 hours time points
Maximum Knee Flexion at 6, 12 and 24 hours time points
Tidsramme: 6, 12 and 24 hours time points
6, 12 and 24 hours time points
Maximum Straight Leg Raise Test at 6, 12 and 24 hours time points
Tidsramme: 6, 12 and 24 hours time points
6, 12 and 24 hours time points
Time to First request for rescue analgesia
Tidsramme: 24 hours
24 hours
Cumulative Opioid consumption in 24 hours
Tidsramme: 24 hours
24 hours
Cumulative opioid consumption till discharge
Tidsramme: till discharge time
till discharge time
6 Minute walk test
Tidsramme: At 24 hours Post block Conduction
At 24 hours Post block Conduction

Andre resultatmål

Resultatmål
Tidsramme
Time to discharge from hospital
Tidsramme: 1 week
1 week

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Cork University Hospital

Efterforskere

  • Studieleder: George Shorten, FFARCSI, PhD, Dept. of Anaesthesia & ICU, Cork University Hospital, Cork, Ireland

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. november 2012

Primær færdiggørelse (Faktiske)

1. maj 2013

Studieafslutning (Faktiske)

1. juli 2013

Datoer for studieregistrering

Først indsendt

17. november 2013

Først indsendt, der opfyldte QC-kriterier

21. november 2013

Først opslået (Skøn)

25. november 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

25. november 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

21. november 2013

Sidst verificeret

1. november 2013

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • JR-0786-GI

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Postoperative smerter

Kliniske forsøg med SNB Saphenous Nerve Block

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Philippines

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner