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Lumbar Erector Spinae Plane Block Versus PENG Block for Hip Fracture Surgery

3 novembre 2026 aggiornato da: Kerollos Moneer Neseem Mikhael, Beni-Suef University

Lumbar Erector Spinae Plane Block Versus Pericapsular Nerve Group (PENG) Block in Patients With Fracture Neck of Femur Undergoing Hip Surgery: A Randomized, Double-Blind, Controlled Trial

The purpose of this clinical trial is to compare two different nerve block techniques-the Pericapsular Nerve Group (PENG) block and the Lumbar Erector Spinae Plane Block (L-ESPB)-for managing pain after hip fracture surgery in elderly patients.

Hip fractures are common in older adults and often cause significant pain. Managing this pain effectively helps patients recover faster and move around sooner after surgery. Traditional pain relief options include nerve blocks and strong pain medications (opioids). However, opioids can cause unwanted side effects like nausea and drowsiness, while some traditional nerve blocks can weaken the leg muscles, making early walking difficult.

Nerve blocks inject a local anesthetic (numbing medication) around specific nerves or within muscle layers to temporarily block pain signals:

  1. PENG Block: Targets the specific sensory nerves supplying the front of the hip joint while minimizing leg muscle weakness.
  2. Lumbar ESPB: Injects numbing medication near the lower spine to block pain signals coming from the hip region.

Participants in this study will include adults aged 60 and older undergoing hip surgery for a femoral neck fracture under spinal anesthesia. Participants will be randomly assigned (like flipping a coin) to receive either the PENG block or the Lumbar ESPB before their surgery. Both blocks are performed under ultrasound guidance to ensure precise medication placement.

Researchers will compare:

  • Pain levels at rest and during movement over the first 48 hours after surgery.
  • The total amount of additional pain medication (opioids) required.
  • Leg muscle (quadriceps) strength after surgery.
  • Any side effects or complications, as well as the overall length of hospital stay.

The findings from this study will help doctors determine which nerve block provides better pain relief while preserving leg strength, aiding in safer and faster recovery for elderly patients after hip surgery.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

BACKGROUND AND RATIONALE:

Hip fractures in elderly patients are associated with significant morbidity, prolonged hospitalization, and functional decline. Effective perioperative analgesia is crucial for early recovery. While systemic opioids and conventional nerve blocks (such as femoral or fascia iliaca blocks) provide pain relief, they are often limited by quadriceps weakness, opioid-related side effects, and delayed mobilization.

The Pericapsular Nerve Group (PENG) block targets the articular branches of the femoral, obturator, and accessory obturator nerves supplying the anterior hip capsule, offering motor-sparing analgesia. The lumbar erector spinae plane block (L-ESPB) is a paraspinal fascial plane block allowing craniocaudal local anesthetic spread to dorsal and ventral rami. Head-to-head evidence comparing L-ESPB and PENG blocks in patients with femoral neck fractures undergoing hip surgery remains limited.

STUDY PROTOCOL & INTERVENTIONS:

This prospective, randomized, double-blind, parallel-group clinical trial evaluates elderly patients (age ≥60 years, ASA II-III) undergoing hip surgery (hemiarthroplasty or total hip arthroplasty) under spinal anesthesia.

Participants are randomized in a 1:1 ratio to receive either:

  1. Group P: Ultrasound-guided PENG block using 20-25 mL of 0.25% bupivacaine.
  2. Group E: Ultrasound-guided L-ESPB at L3/L4 level using 25-30 mL of 0.25% bupivacaine.

Blocks are performed 20 minutes preoperatively by a dedicated anesthetist not involved in outcome assessment. All patients receive standardized intraoperative spinal anesthesia and postoperative multimodal systemic analgesia (scheduled IV/oral paracetamol with IV pethidine as rescue analgesia). Pain scores at rest and on movement, cumulative 24-hour opioid consumption, quadriceps strength (MRC scale), block-related complications, and length of hospital stay will be evaluated.

Tipo di studio

Interventistico

Iscrizione (Stimato)

64

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Luoghi di studio

      • Banī Suwayf, Egitto, 62515
        • Beni-Suef University Hospital

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

60 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  1. Age 60 years or older.
  2. Unilateral fracture neck of femur scheduled for hip surgery (hemiarthroplasty or total hip arthroplasty) under spinal anesthesia (with or without light sedation).
  3. American Society of Anesthesiologists (ASA) physical status II-III.
  4. Ability to understand and use Numeric Rating Scale (NRS) pain scoring and to provide informed consent (or availability of a legally authorized representative according to local regulations).

Exclusion Criteria:

  1. Patient refusal to participate.
  2. Coagulopathy (platelet count < 100,000/µL, INR > 1.4) or ongoing therapeutic anticoagulation that precludes deep peripheral or neuraxial blocks per current guidelines.
  3. Infection at the injection site, systemic sepsis, or hemodynamic instability.
  4. Pre-existing significant neurological deficit in the involved lower limb, advanced peripheral neuropathy, or cognitive impairment precluding reliable pain assessment.
  5. Known allergy or hypersensitivity to amide local anesthetics or study medications.
  6. Severe chronic opioid use (defined as > 30 mg oral morphine equivalent daily for > 3 months).
  7. Body Mass Index (BMI) > 35 kg/m² if considered to significantly hinder ultrasound visualization, at investigator discretion.
  8. Prior hip surgery on the same side or severe anatomical hip deformity affecting block performance.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Doppio

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: PENG Block

Patients receive an ultrasound-guided Pericapsular Nerve Group (PENG) block preoperatively using 20-25 mL of 0.25% bupivacaine (50-62.5 mg) deposited in the fascial plane between the iliopsoas tendon and pubic ramus near the iliopubical eminence (IPE). Standard spinal anesthesia and postoperative multimodal systemic analgesia are administered.

Ultrasound-guided nerve block performed 20 minutes preoperatively in the supine position. A 22G echogenic needle is directed in-plane lateral-to-medial to target the fascial plane deep to the iliopsoas tendon. Following negative aspiration and hydrodissection (2-3 mL saline), 20-25 mL bupivacaine 0.25% (or 15-20 mL in frail/small patients) is injected in 3-5 mL aliquots.

Altri nomi:
  • Blocco PENG
Comparatore attivo: Lumbar ESPB

Patients receive an ultrasound-guided Lumbar Erector Spinae Plane Block (L-ESPB) preoperatively at the L3 or L4 transverse process level using 25-30 mL of 0.25% bupivacaine (62.5-75 mg) deposited deep to the erector spinae muscle. Standard spinal anesthesia and postoperative multimodal systemic analgesia are administered.

Ultrasound-guided fascial plane block performed 20 minutes preoperatively in the lateral decubitus or sitting position. A 22G echogenic needle is advanced in-plane cranial-to-caudal to contact the L3 or L4 transverse process. Following negative aspiration and hydrodissection confirming muscle lifting, 25-30 mL bupivacaine 0.25% is injected in 3-5 mL aliquots.

Altri nomi:
  • L-ESPB
  • Lumbar ESPB

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Postoperative Pain Score on Movement at 12 Hours
Lasso di tempo: 12 hours after the end of surgery

Pain intensity assessed using the Numeric Rating Scale (NRS), ranging from 0 (no pain) to 10 (worst imaginable pain). Pain is evaluated during gentle passive leg movement (flexion or rotation) of the operated limb.

12 hours after the end of surgery

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Postoperative Pain Scores at Rest and Movement at Specified Time Points
Lasso di tempo: 30 minutes, 2 hours, 6 hours, 24 hours, and 48 hours after surgery

Pain intensity measured using the Numeric Rating Scale (NRS 0-10, where 0 = no pain and 10 = worst imaginable pain) at rest and during gentle passive movement of the operated limb.

30 minutes, 2 hours, 6 hours, 24 hours, and 48 hours after surgery
Cumulative Opioid Consumption in the First 24 Hours
Lasso di tempo: First 24 hours postoperatively

Total dose of intravenous pethidine (meperidine) administered as rescue analgesia in milligrams (mg).

First 24 hours postoperatively
Time to First Rescue Analgesic Request
Lasso di tempo: Up to 48 hours postoperatively

Duration of time measured in hours from the end of surgery until the patient requests the first dose of rescue IV pethidine.

Up to 48 hours postoperatively
Quadriceps Motor Function (Knee Extension Strength)
Lasso di tempo: At 6, 12, and 24 hours postoperatively

Evaluation of ipsilateral quadriceps muscle strength using the Medical Research Council (MRC) scale, ranging from 0 (no movement) to 5 (normal strength). Motor weakness is defined as an MRC grade ≤ 3/5.

At 6, 12, and 24 hours postoperatively
Incidence of Block-Related Complications and Opioid-Related Adverse Events
Lasso di tempo: Up to 48 hours postoperatively

Percentage of participants experiencing adverse events including postoperative nausea and vomiting (PONV), pruritus, urinary retention, hypotension, bradycardia, signs of local anesthetic systemic toxicity (LAST), hematoma, injection site infection, neurological deficit/nerve injury, or falls.

Up to 48 hours postoperatively
Length of Hospital Stay
Lasso di tempo: From date of surgery until hospital discharge (up to approximately 30 days)

Duration of time from surgery completion until discharge from the hospital, measured in total days.

From date of surgery until hospital discharge (up to approximately 30 days)

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

5 novembre 2026

Completamento primario (Stimato)

30 aprile 2027

Completamento dello studio (Stimato)

15 maggio 2027

Date di iscrizione allo studio

Primo inviato

27 ottobre 2026

Primo inviato che soddisfa i criteri di controllo qualità

27 ottobre 2026

Primo Inserito (Effettivo)

2 novembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

4 novembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

3 novembre 2026

Ultimo verificato

1 ottobre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • FMBSUREC/07062026b/ Mikhael

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

SÌ

Descrizione del piano IPD

Individual de-identified participant data underlying the published primary and secondary results (including demographic data, baseline characteristics, NRS pain scores, cumulative opioid consumption, quadriceps motor strength scores, and adverse events) will be made available upon reasonable request to qualified academic researchers.

Periodo di condivisione IPD

Data will become available starting 6 months following publication of the primary manuscript in a peer-reviewed journal and will remain accessible for up to 3 years.

Criteri di accesso alla condivisione IPD

Data will be shared with researchers whose proposed use has been approved by an independent review committee or the principal investigator to achieve the aims of an approved scientific proposal. Requests should be directed to the Principal Investigator (Dr. Kerollos Moneer Neseem Mikhael) via email. A signed Data Use Agreement (DUA) may be required.

Tipo di informazioni di supporto alla condivisione IPD

  • STUDIO_PROTOCOLLO
  • LINFA

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

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 .