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Efficacy of TLIP Block for Postoperative Analgesia of Lumbar Spinal Fusion (ETLA)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT04593953
Recruitment Status : Recruiting
First Posted : October 20, 2020
Last Update Posted : November 29, 2021
Information provided by (Responsible Party):
CMC Ambroise Paré

Brief Summary:

Spinal surgery is associated with severe pain in the immediate postoperative period. In a recent study evaluating pain intensity on the first day after surgery in a large range of surgical procedures, among the six most painful surgeries, three were major spinal procedures. Spinal surgery causes an accumulation of several types of pain. Incisional pain results from activation of peripheral nociceptors. Musculoskeletal pain arises from damage to structures, such as bone, ligaments, muscles, intervertebral disks, and zygapophyseal joints. In addition, neuropathic pain arises from compression and damage to nerve roots exiting the spinal canal and sometimes damage to the spinal cord itself.

Postoperative pain management requires multimodal analgesia, combining drugs and injection of a local anesthetic (LA) in order to reduce opioid consumption after surgery. Among regional anesthesia (RA) techniques, the thoraco-lumbar interfascial plane block (TLIP) was considered. It offers an effective and safe analgesia during the first 24h after herniated lumbar disc surgery. Ultrasound-guided TLIP block involves injection of LAs between longissimus and multifidus muscles (spinal lombar muscles). This injection allows to block the dorsal rami of spinal nerves innervating the paravertebral muscles and the vertebrae.

The objective of this study is to evaluate the interest of TLIP block to improve the postoperative analgesia in patients undergoing lumbar spinal fusion surgery.

Condition or disease Intervention/treatment Phase
Lumbar Spinal Fusion Procedure: TLIP Not Applicable

Detailed Description:

This is a multicenter, randomized, double-blind (participant and care provider assessing outcomes), parallel-group controlled, trial assessing the interest of the association of TLIP block to general anesthesia for postoperative analgesia management in patients undergoing posterior lumbar spinal fusion.

This study compares two groups:

"Control" group: standard general anesthesia. "TLIP" group: standard general anesthesia + TLIP block with an injection of 40 ml of ropivacaine 0.25% (2 injections of 20 ml on each side) between multifidus and longissimus muscles.

• General anesthesia

General anesthesia will be standardized in the two groups:

  • Induction with propofol 2-3 mg/kg, sufentanyl 0.2-0.3 µg/kg and ketamine 0.3 mg/kg
  • Intubation facilitated according centre's protocol and ventilation performed with 50% oxygen and 50% air in order to maintain normocapnia and normoxia.
  • Anesthesia maintained according to the centre's usual care.
  • Prevention of postoperative nausea and vomiting (NVPO) according centre's protocol.

    • TLIP block technique ("TLIP" group only) The regional anesthesia procedure will be performed under general anesthesia and will be guided by ultrasound with high-frequency linear probe, patient in prone position or genupectoral (knee-chest) position. The probe will be positioned in order to have an axial view of lumbar vertebrae. The 3rd lumbar vertebra (L3), the 4th lumbar vertebra (L4) and the 5th lumbar vertebra (L5) will be identified after initial identification of the sacrum. A needle will be inserted in plane (IP) and advanced to reach the interspace between the multifidus and the longissimus muscles on the tip of the articular process. For each patient, the block will be performed bilaterally by injecting of 20 ml of Ropivacaine 0.25% on each side. Before each procedure, a skin disinfection will be carried out using an alcoholic iodine solution.

Patients will not receive any LA by intravenous injection or infiltration.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 90 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Care Provider, Outcomes Assessor)
Masking Description: To minimize assessment bias, patients and evaluators (nurse and physiotherapist) will be unaware of the intervention group. Only the investigator, who will include the patient and will realize the procedure, will know the arm of randomization.
Primary Purpose: Other
Official Title: Efficacy of Thoraco-Lumbar Interfascial Plane (TLIP) Block for Postoperative Analgesia of Lumbar Spinal Fusion
Actual Study Start Date : February 8, 2021
Estimated Primary Completion Date : October 15, 2022
Estimated Study Completion Date : January 4, 2023

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
No Intervention: CONTROL
Standard general anesthesia
Experimental: TLIP
Standard general anesthesia + TLIP block
Procedure: TLIP
Injection of 40 ml of ropivacaine 0.25% (2 injections of 20 ml on each side) between multifidus and longissimus muscles.

Primary Outcome Measures :
  1. Morphine consumption in the first 24 hours post-surgery [ Time Frame: 24 hours ]
    Total amount of morphine (mg) administered during the first 24 hours post-surgery. The reference time t0 will be the time of skin incision.

Secondary Outcome Measures :
  1. Morphine consumption in the first 48 hours post-surgery [ Time Frame: 48 hours ]
    Total amount of morphine (mg) administered during the first 48 hours post-surgery

  2. Morphine consumption in the post-anesthesia care unit (PACU) [ Time Frame: 6 hours ]
    Total amount of morphine (mg) administered in PACU

  3. Duration of postoperative analgesia [ Time Frame: 48 hours ]
    Time (in minutes) between the skin incision (t0) and the first administration of morphine in PACU or in ward.

  4. Postoperative pain: Visual Analogue Scale (VAS) [ Time Frame: 48 hours ]
    Pain scores using a Visual Analogue Scale (VAS) ranging from 0 to 10 (0= no pain; 10= worst imaginable pain). These scores will be recorded before surgery, in PACU and four times a day (morning, afternoon, evening and night) during the first 48 hours post-surgery, both at rest and during exercises (walk with the physiotherapist).

  5. Postoperative quality of recovery [ Time Frame: 72 hours ]
    15-item Quality of Recovery (QoR-15) scale ranging from 0 to 10 (0= very poor recovery; 150= excellent recovery). This multidimensional questionnaire assesses five domains of patient-reported health status: pain, physical comfort, physical independence, psychological support and emotional state.

  6. Side effects associated with opioids [ Time Frame: 72 hours ]
    Incidence of side effects associated with morphine: nausea and vomiting, drowsiness, acute urinary retention.

  7. Rate of complications [ Time Frame: 20 minutes, 72 hours ]

    Poor distribution of local anesthetic and rhythm disorders linked to an intravascular injection assessed during regional anesthesia procedure and during the 20 minutes following the block.

    Infection at the injection site and mechanical complications: hematoma, assessed 72h post-surgery.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • ≥ 18 years old,
  • Undergoing posterior lumbar spinal one-level or two-level fusion surgery (L3-L4, L4-L5 and/or L5-S1),
  • Having signed a written informed consent form,
  • Affiliation to the social security system.

Exclusion Criteria:

  • Contraindication for regional anesthesia (allergy to local anesthetics, neuropathic disease, infection at the puncture site, coagulation disorder, refusal of the technique,…)
  • Contraindication to nonsteroidal anti-inflammatory drugs,
  • Patient who have already had a spinal surgery,
  • Patient with chronic pain syndrome (use > 3 months of morphine, opioid analgesics of class 3, pregabalin or gabapentin) or fibromyalgia,
  • A mental or linguistic inability to understand the study,
  • Patient under protection of the adults (guardianship, curators or safeguard of justice),
  • Pregnant or or breastfeeding women.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04593953

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CMC Ambroise Paré Recruiting
Neuilly-sur-Seine, Ile-de-France, France, 92200
Contact: Philippe Peillon, MD    01 46 41 31 26   
Principal Investigator: Philippe Peillon, MD         
Clinique Rémusat Not yet recruiting
Paris, Ile-de-France, France, 75016
Contact: Sébastien Bloc, MD   
Principal Investigator: Sébastien Bloc, MD         
Hôpital Privé Jean Mermoz Not yet recruiting
Lyon, France, 69008
Contact: Julien Cabaton, MD   
Principal Investigator: Julien Cabaton, MD         
Sponsors and Collaborators
CMC Ambroise Paré
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Responsible Party: CMC Ambroise Paré Identifier: NCT04593953    
Other Study ID Numbers: 2020/01
First Posted: October 20, 2020    Key Record Dates
Last Update Posted: November 29, 2021
Last Verified: November 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by CMC Ambroise Paré:
TLIP block
Lumbar spinal fusion
Regional anesthesia
Postoperative analgesia
Pain management