Tato stránka byla automaticky přeložena a přesnost překladu není zaručena. Podívejte se prosím na anglická verze pro zdrojový text.

Comparison of Spinal Anesthesia With Intrathecal Morphine Versus PENG Block With or Without Dexamethasone in Hip Arthroplasty (THA)

6. května 2026 aktualizováno: Poznan University of Medical Sciences

Comparison of the Efficacy and Safety of Three Regional Anesthesia Strategies in Patients Undergoing Elective Total Hip Arthroplasty: A Prospective, Randomized, Multicenter Clinical Trial

The goal of this clinical trial is to learn which of three regional anesthesia approaches provides better pain relief and safety for older adults having planned hip replacement surgery. Researchers will study people aged 60 years and older who are scheduled for elective total hip arthroplasty.

The main questions this study aims to answer are:

Which anesthesia method provides better pain control after surgery? Which method reduces the need for opioid pain medicines? Are there differences in side effects and recovery between the approaches? Participants will be randomly assigned to one of three groups. All participants will receive spinal anesthesia. One group will receive spinal anesthesia with intrathecal morphine. The other two groups will receive spinal anesthesia combined with a nerve block called the pericapsular nerve group (PENG) block, with or without the addition of dexamethasone.

Participants will have their pain levels measured at regular times during the first two days after surgery. Researchers will also record opioid use, time to first pain medication, ability to move after surgery, length of hospital stay, and any side effects such as nausea or itching. Blood tests will be used to measure markers of inflammation.

The results of this study may help doctors choose safer and more effective pain control strategies for people undergoing hip replacement surgery.

Přehled studie

Detailní popis

Postoperative pain after total hip arthroplasty is associated with increased opioid use, delayed mobilization, and a higher risk of adverse events, particularly in older adults. Spinal anesthesia with intrathecal morphine is widely used to improve postoperative analgesia; however, it may be associated with opioid-related side effects such as nausea, pruritus, urinary retention, and respiratory depression. Ultrasound-guided regional nerve blocks, including the pericapsular nerve group (PENG) block, have emerged as opioid-sparing alternatives that may provide effective analgesia while preserving motor function.

This prospective, randomized, multicenter clinical trial is designed to compare the efficacy and safety of three regional anesthesia strategies in patients undergoing elective total hip arthroplasty. Participants aged 60 years and older will be randomly assigned in a 1:1:1 ratio to one of three study groups: spinal anesthesia with intrathecal morphine; spinal anesthesia combined with a PENG block; or spinal anesthesia combined with a PENG block using perineural dexamethasone as an adjuvant.

All participants will receive standardized spinal anesthesia with ropivacaine. In the control group, intrathecal morphine will be administered as part of routine spinal anesthesia. In the intervention groups, the PENG block will be performed under ultrasound guidance using ropivacaine, with or without the addition of dexamethasone. Perioperative care, postoperative analgesic protocols, and rehabilitation pathways will be standardized across all study centers to minimize variability.

Pain intensity at rest and during movement will be assessed using a visual analog scale at predefined time points within the first 48 hours after surgery. Secondary outcomes include total opioid consumption, time to first rescue analgesia, early mobilization, length of hospital stay, incidence of opioid-related and block-related adverse events, and changes in inflammatory markers measured in peripheral blood.

The results of this study will provide comparative evidence on opioid-based versus opioid-sparing regional anesthesia strategies for hip arthroplasty and may help inform clinical decision-making aimed at improving postoperative pain control, functional recovery, and safety in older surgical patients.

Typ studie

Intervenční

Zápis (Odhadovaný)

90

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní záloha kontaktů

Studijní místa

      • Poznan, Polsko, 62-701
        • Poznan University of Medical Sciences

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý
  • Starší dospělý

Přijímá zdravé dobrovolníky

Ne

Popis

Inclusion Criteria:

  • Adults aged 60 to 100 years
  • Scheduled for elective total hip arthroplasty
  • American Society of Anesthesiologists (ASA) physical status I-III
  • Ability to understand the study procedures and provide written informed consent

Exclusion Criteria:

  • Known allergy or hypersensitivity to ropivacaine, morphine, or dexamethasone
  • Coagulation disorders or ongoing anticoagulant therapy contraindicating spinal anesthesia or regional nerve blocks
  • Infection at the site of spinal or peripheral nerve block injection
  • Pre-existing neurological disorders affecting sensory or motor function
  • Severe hepatic or renal insufficiency
  • Chronic opioid use for more than 3 months prior to surgery
  • Refusal or inability to provide informed consent

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Žádné (otevřený štítek)

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Aktivní komparátor: Spinal Anesthesia With Intrathecal Morphine
Participants will receive spinal anesthesia with intrathecal ropivacaine combined with intrathecal morphine. Ropivacaine 0.5% (10-15 mg) will be administered intrathecally, followed by intrathecal morphine at a dose of 100 micrograms as part of standard anesthesia care.
Intrathecal morphine administered as part of spinal anesthesia for postoperative pain control during elective total hip arthroplasty.
Ostatní jména:
  • Morphine (intrathecal)
Experimentální: Spinal Anesthesia Plus PENG Block
Participants will receive spinal anesthesia with intrathecal ropivacaine 0.5% (10-15 mg) combined with an ultrasound-guided pericapsular nerve group (PENG) block. The PENG block will be performed using 20 mL of ropivacaine 0.2% administered as a single injection.
Ultrasound-guided pericapsular nerve group block performed as an adjunct to spinal anesthesia to provide postoperative analgesia.
Ostatní jména:
  • Blok PENG
Experimentální: Spinal Anesthesia Plus PENG Block With Dexamethasone
Participants will receive spinal anesthesia with intrathecal ropivacaine 0.5% (10-15 mg) combined with an ultrasound-guided pericapsular nerve group (PENG) block. The PENG block will be performed using 20 mL of ropivacaine 0.2% with the addition of dexamethasone 4 mg administered perineurally as a single injection.
Perineural dexamethasone administered as an adjuvant to the pericapsular nerve group block to prolong postoperative analgesia.
Ostatní jména:
  • Dexamethasone (perineural)

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Total Postoperative Opioid Consumption
Časové okno: Up to 48 hours after surgery
Total amount of opioids administered postoperatively, expressed as intravenous morphine equivalents.
Up to 48 hours after surgery

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Pain scores at rest
Časové okno: 6 hours after surgery
Numeric Rating Scale (NRS), ranging from 0 ("no pain") to 10 ("the worst pain imaginable")- at rest and during mobilization
6 hours after surgery
Pain scores durring movement
Časové okno: 6 hours after surgery
Numeric Rating Scale (NRS), ranging from 0 ("no pain") to 10 ("the worst pain imaginable")- at rest and during mobilization
6 hours after surgery
Pain scores at rest
Časové okno: 12 hours after surgery
Numeric Rating Scale (NRS), ranging from 0 ("no pain") to 10 ("the worst pain imaginable")- at rest and during mobilization
12 hours after surgery
Pain scores durring movement
Časové okno: 12 hours after surgery
Numeric Rating Scale (NRS), ranging from 0 ("no pain") to 10 ("the worst pain imaginable")- at rest and during mobilization
12 hours after surgery
Pain scores at rest
Časové okno: 24 hours after surgery
Numeric Rating Scale (NRS), ranging from 0 ("no pain") to 10 ("the worst pain imaginable")- at rest and during mobilization
24 hours after surgery
Pain scores durring movement
Časové okno: 24 hours after surgery
Numeric Rating Scale (NRS), ranging from 0 ("no pain") to 10 ("the worst pain imaginable")- at rest and during mobilization
24 hours after surgery
Pain scores at rest
Časové okno: 48 hours after surgery
Numeric Rating Scale (NRS), ranging from 0 ("no pain") to 10 ("the worst pain imaginable")- at rest and during mobilization
48 hours after surgery
Pain scores durring movement
Časové okno: 48 hours after surgery
Numeric Rating Scale (NRS), ranging from 0 ("no pain") to 10 ("the worst pain imaginable")- at rest and during mobilization
48 hours after surgery
Time to First Rescue Analgesia
Časové okno: Up to 48 hours after surgery.
Time from the end of surgery to the first request for rescue analgesic medication.
Up to 48 hours after surgery.
Early Mobilization
Časové okno: Up to 48 hours after surgery
Time to first mobilization assessed using the Timed Up and Go test.
Up to 48 hours after surgery
Incidence of Opioid-Related Adverse Events
Časové okno: Up to 48 hours after surgery.
Occurrence of opioid-related adverse events, including nausea, vomiting, pruritus, and urinary retention.
Up to 48 hours after surgery.
Length of Hospital Stay
Časové okno: measured at the day of the discharge from the hospital
Total duration of postoperative hospitalization measured in days.
measured at the day of the discharge from the hospital

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Vyšetřovatelé

  • Studijní židle: Malgorzata Reysner, MD PhD, Poznan University of Medical Sciences

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

1. června 2026

Primární dokončení (Odhadovaný)

31. března 2027

Dokončení studie (Odhadovaný)

1. května 2027

Termíny zápisu do studia

První předloženo

13. března 2026

První předloženo, které splnilo kritéria kontroly kvality

6. května 2026

První zveřejněno (Aktuální)

13. května 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

13. května 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

6. května 2026

Naposledy ověřeno

1. února 2026

Více informací

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

Klinické studie na Osteoartróza kyčle

Klinické studie na Intrathecal Morphine

Předplatit