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TLIP Block Versus Retrolaminar Block on Quality of Recovery After Posterior Lumbar Spine Fusion Surgery (TLIP-RLB-QoR)

21. mai 2026 oppdatert av: Rehab Mohamed Mostafa Mahmoud, Assiut University

Thoracolumbar Interfascial Plane Block Versus Retrolaminar Block on Quality of Recovery After Posterior Lumbar Spine Fusion Surgery: A Prospective Randomized Controlled Trial

This prospective randomized controlled study aims to compare the effects of ultrasound-guided thoracolumbar interfascial plane (TLIP) block versus retrolaminar block on postoperative quality of recovery in patients undergoing posterior lumbar spine fusion surgery. Despite advances in surgical techniques, lumbar spine fusion is associated with significant postoperative pain, which may delay recovery and increase opioid consumption.

Recent approaches emphasize multimodal analgesia and opioid-sparing strategies, including regional anesthesia techniques. Interfascial plane blocks, such as TLIP and retrolaminar block, have gained attention due to their safety and effectiveness in targeting the dorsal rami of spinal nerves supplying the posterior spinal structures.

The primary outcome of this study is postoperative quality of recovery assessed using the Quality of Recovery-15 (QoR-15) questionnaire at 24 hours. Secondary outcomes include pain scores, opioid consumption, time to ambulation, time to oral intake, and postoperative complications.

Studieoversikt

Detaljert beskrivelse

This study is a prospective, randomized, controlled, double-blind clinical trial conducted at Assiut University Hospital. A total of 70 adult patients scheduled for elective one- or two-level posterior lumbar instrumented fusion surgery under general anesthesia will be enrolled and randomly allocated into two equal groups.

Patients in Group T will receive ultrasound-guided thoracolumbar interfascial plane (TLIP) block, while patients in Group R will receive ultrasound-guided retrolaminar block. All blocks will be performed after induction of general anesthesia under strict aseptic precautions by an experienced anesthesiologist.

Randomization will be performed using a computer-generated sequence with allocation concealment via sequentially numbered, opaque, sealed envelopes. The study will be conducted in a double-blind manner, where patients and outcome assessors will be blinded to group allocation.

All patients will receive standardized perioperative care based on enhanced recovery principles, including multimodal analgesia and early mobilization. Postoperative pain will be assessed using the Visual Analog Scale (VAS), and rescue analgesia will be administered when needed.

The primary outcome is the QoR-15 score at 24 hours postoperatively. Secondary outcomes include pain scores at predefined intervals, time to first rescue analgesia, total opioid consumption, time to ambulation, time to oral intake, length of hospital stay, and incidence of postoperative complications.

Studietype

Intervensjonell

Registrering (Antatt)

70

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

      • Asyut, Egypt
        • Assiut University Hospitals

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Adult patients aged 18-65 years
  • Male and female patients
  • Scheduled for elective one- or two-level posterior lumbar instrumented fusion surgery under general anesthesia
  • ASA physical status I-III
  • BMI < 35 kg/m²
  • Willing to participate and provide informed consent

Exclusion Criteria:

  • Patient refusal to participate
  • Coagulopathy or anticoagulant therapy
  • Infection at the site of block injection
  • Known allergy to local anesthetics
  • Chronic opioid use (>3 months)
  • Severe hepatic, renal, or cardiac dysfunction
  • Neurological deficits interfering with pain assessment
  • Pregnancy or lactation

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Dobbelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Thoracolumbar interfascial plane Block Group
Patients will receive ultrasound-guided thoracolumbar interfascial plane block after induction of general anesthesia.
Ultrasound-guided injection of local anesthetic into the fascial plane between the multifidus and longissimus muscles at the L3 level
Eksperimentell: Retrolaminar Block Group
Patients will receive ultrasound-guided retrolaminar block after induction of general anesthesia.
Ultrasound-guided injection of local anesthetic posterior to the vertebral lamina at the L3 level.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Quality of Recovery-15 (QoR-15) score at 24 hours postoperatively
Tidsramme: 24 hours postoperatively
Quality of recovery will be assessed using the Quality of Recovery-15 (QoR-15) questionnaire, a validated 15-item patient-reported outcome measure. Scores range from 0 to 150, with higher scores indicating better postoperative recovery. The primary endpoint is the QoR-15 score at 24 hours after surgery.
24 hours postoperatively

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Pain intensity using Visual Analog Scale (VAS)
Tidsramme: 30 minutes, 2, 6, 12, and 24 hours postoperatively
Pain will be assessed using a 0-10 Visual Analog Scale, where 0 indicates no pain and 10 indicates worst imaginable pain.
30 minutes, 2, 6, 12, and 24 hours postoperatively
Time to first rescue analgesia
Tidsramme: Within 24 hours postoperatively
Time from the end of surgery to the first request for rescue analgesia (VAS ≥ 4).
Within 24 hours postoperatively
Total nalbuphine consumption
Tidsramme: 24 hours postoperatively
Total amount of nalbuphine administered within the first 24 hours after surgery (mg).
24 hours postoperatively
Time to first ambulation
Tidsramme: From end of surgery to first ambulation, assessed up to 48 hours postoperatively
From end of surgery to first ambulation, assessed up to 48 hours postoperatively
Time to tolerate oral intake
Tidsramme: From end of surgery to first tolerated oral intake, assessed up to 48 hours postoperatively
From end of surgery to first tolerated oral intake, assessed up to 48 hours postoperatively
Length of hospital stay
Tidsramme: From surgery until hospital discharge, assessed up to 7 days postoperatively
From surgery until hospital discharge, assessed up to 7 days postoperatively
Incidence of postoperative complications
Tidsramme: Within 24-48 hours postoperatively
Includes nausea, vomiting, pruritus, hypotension, bradycardia, hematoma, infection, and local anesthetic systemic toxicity (LAST).
Within 24-48 hours postoperatively

Samarbeidspartnere og etterforskere

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Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. juni 2026

Primær fullføring (Antatt)

1. juni 2027

Studiet fullført (Antatt)

1. juni 2027

Datoer for studieregistrering

Først innsendt

20. april 2026

Først innsendt som oppfylte QC-kriteriene

21. mai 2026

Først lagt ut (Faktiske)

27. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

27. mai 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

21. mai 2026

Sist bekreftet

1. mai 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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