Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

Obturator and Femoral Nerve Block in Patients With Hip Fracture

13 mei 2016 bijgewerkt door: University of Aarhus

Analgesic Effect of an Obturator Nerve Block Combined With a Femoral Nerve Block Compared With Femoral Nerve Block Alone in Patients With Hip Fracture

A higher number than expected of patients with hip fracture have only insufficient analgesic effect of a femoral nerve block, which is the nerve block commonly used for this group of patients. One of the possible causes of this failure to provide analgesia from a single nerve block could be the that other nerves are involved in transmitting the pain signal. One of the nerves that is believed to give off branches to the hip is the obturator nerve.

With ultrasound it is possible to make a selective proximal nerve block of the obturator nerve.

The aim of this trial is to test the analgesic effect of a femoral nerve block i combination with an obturator nerve block compared to femoral nerve block alone in a randomized and placebo controlled design.

Studie Overzicht

Toestand

Onbekend

Conditie

Gedetailleerde beschrijving

A higher number than expected of all patients with hip fracture have only insufficient analgesic effect of a femoral nerve block. One of the possible causes of this failure to provide analgesia from a single nerve block could be the that other nerves are involved in transmitting the pain signal. One of the nerves that is believed to give off branches to the hip is the obturator nerve. Earlier it was believed that the so called '3-in-1-block' or the iliac fascia compartment block would anesthetize also the obturator nerve, and these two nerve blocks have been uses extensively in the emergency ward for preoperative analgesia. Today that is not believed to be true and consequently is the part of the obturator nerve in patients with hip fracture unknown.

With ultrasound it is possible to make a selective proximal nerve block of the obturator nerve before it branches into an anterior and a posterior branch. A selective nerve block of the obturator nerve to access its effect in patients with hip fracture has to our knowledge never been done.

The aim of this trial is to test the analgesic effect of a femoral nerve block i combination with an obturator nerve block compared to femoral nerve block alone in a randomized and placebo controlled design.

Studietype

Ingrijpend

Inschrijving (Verwacht)

90

Fase

  • Fase 4

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

55 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Clinical suspicion of hip fracture
  • Age ≥ 55 years
  • Mentally capable of comprehending and using verbal pain score
  • Mentally capable of differentiating between pain from the fractured hip and pain from other locations
  • Mentally capable of understanding the given information
  • Arrival in the emergency room at times when one of the doctors who do the nerve blocks for this investigation are on call
  • Verbal numeric pain scale score (NRS 0-10) > 5 with a dynamic test OR NRS > 3 at rest
  • Patients informed consent

Exclusion Criteria:

  • Hip fracture not confirmed by x-ray
  • Weight < 40 kg
  • Patient has previously been included in this trial
  • If the patient wishes to be excluded
  • Allergy to local anesthetics or adrenocortical hormone
  • Visible infection in the area of the point of needle injection

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verviervoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Bupivacaine
Obturator nerve block
Obturator nerve block
Andere namen:
  • Active nerve block
Placebo-vergelijker: Saline
Saline is injected as a placebo
Obturator nerve block with saline(placebo)
Andere namen:
  • Placebo

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Success rate of successful analgesia, measured with numeric rating scale(NRS) 0-10 with 0=no pain and 10=worst pain. Successful analgesia = NRS<4 at rest and NRS <6 with passive movement of the fractured leg.
Tijdsspanne: 30 minutes
Success rate of successful analgesia compared between the groups
30 minutes

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Median pain score (NRS 0-10)
Tijdsspanne: 30 minutes
Median pain score 30 minutes after the nerve blocks compared between the groups
30 minutes
Median change in pain score (NRS 0-10)
Tijdsspanne: 30 minutes
Median change in pain score 30 minutes after the nerve blocks compared between the groups
30 minutes
Course in pain reduction
Tijdsspanne: 30 minutes
Course in pain reduction during the 30 minutes after the nerve blocks
30 minutes
Time to sufficient analgesia
Tijdsspanne: 30 minutes
Time from ended injection until sufficient analgesia
30 minutes
Frequency of anesthesia in the skin area of the saphenous nerve
Tijdsspanne: 30 minutes
Frequency of anesthesia in the skin area innervated by the saphenous nerve
30 minutes
Frequency of anesthesia in the skin area of the anterior cutaneous branches of the femoral nerve
Tijdsspanne: 30 minutes
Frequency of anesthesia in the skin area of the anterior cutaneous branches of the femoral nerve
30 minutes
Localization of the worst pain before block
Tijdsspanne: 0 minutes
Localization of the worst pain before any nerve blocks
0 minutes
Localization of the worst pain after block
Tijdsspanne: 30 minutes
Localization of the worst pain 30 minutes after the nerve blocks
30 minutes
Discomfort during nerve block procedures (score 0-10, 0=no discomfort)
Tijdsspanne: 5 minutes
Discomfort during the nerve block procedures compared between procedures
5 minutes
Satisfaction (0-10, 0= very unsatisfactory)
Tijdsspanne: 30 minutes
Patient satisfaction with the pain treatment
30 minutes
Frequency of ultrasound visualization of femoral nerve
Tijdsspanne: 5 minutes
Frequency of patients with possible ultrasound visualization af the femoral nerve
5 minutes
Frequency of ultrasound visualization of obturator injection site
Tijdsspanne: 5 minutes
Frequency of patients with possible ultrasound visualization of the obturator nerve block injection site
5 minutes
Time spend on femoral nerve block
Tijdsspanne: 5 minutes
Time spend on conducting the femoral nerve block
5 minutes
Time spend on obturator nerve block
Tijdsspanne: 5 minutes
Time spend on conducting the obturator nerve block
5 minutes
Total morphine equivalent dose of opioid from the time of nerve block to operation
Tijdsspanne: Approximately 24 hours in average
Total morphine equivalent dose of opioid from the time of nerve block until the time of operation
Approximately 24 hours in average
Total morphine equivalent dose of opioid/time from the time of nerve block to operation
Tijdsspanne: Approximately 24 hours in average
Total morphine equivalent dose of opioid/time from the time of nerve block until the time of operation
Approximately 24 hours in average
Total morphine equivalent dose of opioid in the first 10 hours after nerve block
Tijdsspanne: 10 hours
Total morphine equivalent dose of opioid given in the first 10 hours after nerve block
10 hours
Total morphine equivalent dose of opioid/time in the first 10 hours after nerve block
Tijdsspanne: 10 hours
Total morphine equivalent dose of opioid/time given in the first 10 hours after nerve block
10 hours

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Onderzoekers

  • Studie directeur: Thomas F. Bendtsen, Ph.d., Aarhus University Hospital

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 oktober 2015

Primaire voltooiing (Verwacht)

1 april 2017

Studie voltooiing (Verwacht)

1 april 2017

Studieregistratiedata

Eerst ingediend

27 augustus 2015

Eerst ingediend dat voldeed aan de QC-criteria

1 september 2015

Eerst geplaatst (Schatting)

4 september 2015

Updates van studierecords

Laatste update geplaatst (Schatting)

16 mei 2016

Laatste update ingediend die voldeed aan QC-criteria

13 mei 2016

Laatst geverifieerd

1 mei 2016

Meer informatie

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Abonneren