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Pericapsular Nerve Group Block Versus Femoral Nerve Block Study

16 lipca 2026 zaktualizowane przez: Taksim Egitim ve Arastirma Hastanesi

Comparison of Preoperative Pericapsular Nerve Group (PENG) Block Versus Femoral Nerve Block for Optimizing Spinal Anaesthesia in Proximal Femur Fracture Surgery: A Prospective Randomized Controlled Trial

Hip fractures are common in older adults and are often associated with severe pain, making it difficult for patients to sit for spinal anesthesia before surgery. Peripheral nerve blocks may improve pain control and facilitate patient positioning, but it remains uncertain whether the Pericapsular Nerve Group (PENG) block provides advantages over the traditional femoral nerve block during the spinal anesthesia procedure.

Przegląd badań

Szczegółowy opis

Hip fractures are among the most common injuries in older adults and are associated with substantial morbidity, mortality, and healthcare utilization. Spinal anesthesia is frequently used for surgical repair of proximal femur fractures because of its favorable safety profile in elderly patients. However, severe pain caused by the fracture often makes positioning for spinal anesthesia difficult, resulting in patient discomfort, prolonged procedure time, multiple needle insertion attempts, and increased procedural complexity.

Peripheral nerve blocks are increasingly used before spinal anesthesia to improve analgesia and facilitate patient positioning. The femoral nerve block (FNB) has long been established as an effective regional anesthesia technique for patients with hip fractures. More recently, the ultrasound-guided Pericapsular Nerve Group (PENG) block has been introduced as a motor-sparing technique targeting the articular branches of the femoral, obturator, and accessory obturator nerves that innervate the anterior hip capsule. Previous studies have demonstrated that the PENG block provides effective analgesia during positioning for spinal anesthesia and may offer superior pain relief compared with conventional techniques. However, evidence comparing the effects of PENG block and femoral nerve block on the technical performance of spinal anesthesia and perioperative hemodynamic stability remains limited.

This prospective, randomized controlled trial is designed to compare ultrasound-guided PENG block with ultrasound-guided femoral nerve block in patients undergoing surgery for proximal femur fracture under spinal anesthesia. The study will evaluate whether PENG block improves procedural conditions for spinal anesthesia compared with femoral nerve block while also assessing perioperative analgesia and hemodynamic responses.

The study hypothesis is that preoperative PENG block will provide better procedural conditions for spinal anesthesia than femoral nerve block by improving patient positioning, reducing pain during positioning, facilitating spinal needle placement, decreasing the need for supplemental analgesic or sedative medication, and contributing to greater perioperative hemodynamic stability.

Typ studiów

Interwencyjne

Zapisy (Szacowany)

110

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Lokalizacje studiów

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

  • Dorosły
  • Starszy dorosły

Akceptuje zdrowych ochotników

Nie

Opis

Inclusion Criteria:

  • Adults aged 50 years or older.
  • Diagnosis of proximal femoral fracture.
  • Scheduled to undergo surgical repair under spinal anesthesia.
  • American Society of Anesthesiologists (ASA) physical status I-III.
  • Able to provide written informed consent.

Exclusion Criteria:

  • Refusal to participate or inability to provide informed consent.
  • Coagulopathy or contraindication to spinal anesthesia or peripheral nerve block.
  • Local infection at the planned injection site.
  • Known allergy or hypersensitivity to local anesthetics.
  • Pre-existing neurological disease affecting lower extremity function or sensory assessment.
  • Cognitive impairment preventing reliable study participation or outcome assessment.
  • Previous lumbar spine surgery.
  • Polytrauma.
  • Body mass index (BMI) <18 kg/m² or >40 kg/m².
  • Current anticoagulant therapy that precludes neuraxial anesthesia or peripheral nerve block according to institutional practice.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Leczenie
  • Przydział: Randomizowane
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Potroić

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Aktywny komparator: PENG Block
Participants will receive a preoperative ultrasound-guided Pericapsular Nerve Group (PENG) block with 20 mL of 0.25% bupivacaine before spinal anesthesia for proximal femur fracture surgery. Spinal anesthesia will subsequently be performed according to the standardized study protocol.
Ultrasound-guided PENG block performed before spinal anesthesia using 20 mL of 0.25% bupivacaine to provide analgesia for patients undergoing surgery for proximal femur fracture.
Standard spinal anesthesia performed after the assigned peripheral nerve block using intrathecal hyperbaric bupivacaine according to the study protocol.
Aktywny komparator: Femoral Nerve Block
Participants will receive a preoperative ultrasound-guided femoral nerve block with 20 mL of 0.25% bupivacaine before spinal anesthesia for proximal femur fracture surgery. Spinal anesthesia will subsequently be performed according to the standardized study protocol.
Standard spinal anesthesia performed after the assigned peripheral nerve block using intrathecal hyperbaric bupivacaine according to the study protocol.
Ultrasound-guided femoral nerve block performed before spinal anesthesia using 20 mL of 0.25% bupivacaine to provide analgesia for patients undergoing surgery for proximal femur fracture.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Spinal Anesthesia Convenience Score (SACS)
Ramy czasowe: During spinal anesthesia procedure (immediately after patient positioning and before initiation of surgery)
Spinal anesthesia convenience will be assessed using the Spinal Anesthesia Convenience Score (SACS), a composite clinical score evaluating the ease of spinal anesthesia based on anatomical landmark palpation, patient cooperation, sitting position quality, pain during passive hip flexion, and pain while maintaining the sitting position. Total scores range from 0 to 11, with higher scores indicating easier spinal anesthesia conditions.
During spinal anesthesia procedure (immediately after patient positioning and before initiation of surgery)

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
First-Attempt Success of Spinal Anesthesia
Ramy czasowe: During the spinal anesthesia procedure.
The proportion of participants in whom successful intrathecal access is achieved on the first needle insertion attempt.
During the spinal anesthesia procedure.
Number of Spinal Needle Insertion Attempts
Ramy czasowe: During the spinal anesthesia procedure.
The total number of spinal needle insertion attempts required to achieve successful spinal anesthesia.
During the spinal anesthesia procedure.
Duration of Spinal Anesthesia Procedure
Ramy czasowe: During the spinal anesthesia procedure.
Time from the beginning of patient positioning until completion of spinal anesthesia and return to the supine position, measured in minutes.
During the spinal anesthesia procedure.
Anxiety Score
Ramy czasowe: Before peripheral nerve block, 30 minutes after block placement, and immediately before surgical incision (after spinal anesthesia).
Patient anxiety will be assessed using an 11-point Numeric Rating Scale (NRS) ranging from 0 (no anxiety) to 10 (maximum anxiety). Lower scores indicate less anxiety.
Before peripheral nerve block, 30 minutes after block placement, and immediately before surgical incision (after spinal anesthesia).
Patient Satisfaction
Ramy czasowe: Postoperative Day 0 (before discharge from the post-anesthesia care unit [PACU])
Patient satisfaction with the anesthesia process will be assessed using a Numeric Rating Scale ranging from 0 (not satisfied at all) to 10 (completely satisfied). Higher scores indicate greater satisfaction.
Postoperative Day 0 (before discharge from the post-anesthesia care unit [PACU])
Anesthesiologist Satisfaction
Ramy czasowe: Immediately after completion of spinal anesthesia.
The anesthesiologist's satisfaction with procedural conditions will be assessed using a Numeric Rating Scale ranging from 0 (not satisfied at all) to 10 (completely satisfied). Higher scores indicate greater satisfaction.
Immediately after completion of spinal anesthesia.
Perioperative Hemodynamic Parameters
Ramy czasowe: Before peripheral nerve block; 1, 5, 10, 15, and 30 minutes after block placement; and 1, 5, 10, 15, and 30 minutes after spinal anesthesia.
Mean arterial blood pressure will be recorded throughout the perioperative period.
Before peripheral nerve block; 1, 5, 10, 15, and 30 minutes after block placement; and 1, 5, 10, 15, and 30 minutes after spinal anesthesia.
Incidence of Hypotension
Ramy czasowe: From spinal anesthesia until 30 minutes after surgery completed.
Hypotension is defined as a mean arterial pressure below 65 mmHg. The proportion of participants experiencing hypotension will be recorded.
From spinal anesthesia until 30 minutes after surgery completed.
Vasopressor Requirement
Ramy czasowe: From spinal anesthesia until 30 minutes after surgery completed.
Total intravenous ephedrine dose administered for the treatment of hypotension, measured in milligrams.
From spinal anesthesia until 30 minutes after surgery completed.
Additional Analgesic Medication Requirement
Ramy czasowe: During the spinal anesthesia procedure.
Total doses of intravenous fentanyl (micrograms) administered during positioning for spinal anesthesia.
During the spinal anesthesia procedure.
Additional Sedative Medication Requirement
Ramy czasowe: During the spinal anesthesia procedure.
Total doses of intravenous midazolam (milligrams) administered during positioning for spinal anesthesia.
During the spinal anesthesia procedure.

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Śledczy

  • Główny śledczy: Celal Kaya, Taksim Training and Research Hospital

Publikacje i pomocne linki

Osoba odpowiedzialna za wprowadzenie informacji o badaniu dobrowolnie udostępnia te publikacje. Mogą one dotyczyć wszystkiego, co jest związane z badaniem.

Publikacje ogólne

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

20 lipca 2026

Zakończenie podstawowe (Szacowany)

10 grudnia 2026

Ukończenie studiów (Szacowany)

20 grudnia 2026

Daty rejestracji na studia

Pierwszy przesłany

6 lipca 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

16 lipca 2026

Pierwszy wysłany (Rzeczywisty)

21 lipca 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

21 lipca 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

16 lipca 2026

Ostatnia weryfikacja

1 lipca 2026

Więcej informacji

Terminy związane z tym badaniem

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Opis planu IPD

There is no current plan to share individual participant data (IPD). Future data sharing may be considered upon reasonable request and subject to approval by the sponsor, institutional policies, and applicable ethical and legal requirements.

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

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