- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT02408419
Obturator Nerve Block in Patients With Hip Fracture (OPAD)
Proximal Obturator Nerve Block After Insufficient Analgesic Effect of Femoral Nerve Block in Patients With Hip Fracture
About 10-30% 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 occasionally 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 trail is to give patients with hip fracture and only insufficient effect of a femoral nerve block a supplementary obturator nerve block in a randomized manner with either local anesthetics or placebo in order to access the preoperative analgesic effect.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
About 10-30% 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 occasionally 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 af the obturator nerve to access its effect in patients with hip fracture has to our knowledge never been done.
The aim of this trail is to give patients with hip fracture and only insufficient effect of a femoral nerve block a supplementary obturator nerve block in a randomized manner with either local anesthetics or placebo in order to access the preoperative analgesic effect.
Tipo di studio
Fase
- Fase 4
Contatti e Sedi
Luoghi di studio
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-
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Aarhus, Danimarca, 8000
- Aarhus University Hospital
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Clinical suspicion of hip fracture
- Successful sensory cutaneous effect of the femoral nerve block
- 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
- Possible sonographic visualization of the structures needed for the nerve block
- Verbal numeric pain scale score (NRS 0-10) > 5 with passive leg raise of the fractured leg at the time of inclusion OR NRS > 3 at rest, 30 minutes after a femoral nerve block
- Patients informed consent
Exclusion Criteria:
- Hip fracture not confirmed by x-ray
- Weight < 45 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
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Quadruplicare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Local anesthetic
15 ml. of local anesthetic
|
Bupivacaine is injected proximally to anesthetize the obturator nerve
|
|
Comparatore placebo: Saline
15 ml. of saline
|
Saline is injected as a placebo
Altri nomi:
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Success rate of successful analgesia
Lasso di tempo: 20 minutes
|
Success rate of successful analgesia 20 minutes after a supplementary obturator nerve block in patients with hip fracture
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20 minutes
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Time used for the procedure
Lasso di tempo: Expected average of 5 minutes
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Time from start of ultrasound scanning to end of injection of local anesthetic or placebo
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Expected average of 5 minutes
|
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Success rate of possible sonographic visualization
Lasso di tempo: Expected average of 5 minutes
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Success rate of possible sonographic visualization of necessary anatomical structures i order to do the nerve block
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Expected average of 5 minutes
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Time to analgesia
Lasso di tempo: 20 minutes
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Time from end of injection of local anesthetic to analgesia
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20 minutes
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Collaboratori e investigatori
Sponsor
Investigatori
- Direttore dello studio: Thomas F. Bendtsen, MD, Ph.d., Aarhus University Hospital
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Anticipato)
Completamento dello studio (Anticipato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- protocol2tdn
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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