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LETTER TO EDITOR
Year : 2020  |  Volume : 64  |  Issue : 5  |  Page : 436-437  

Thoracolumbar interfascial plane block, way forward for awake endoscopic laminectomies


1 Department of Anesthesia, Care Hospital, Hyderabad, Telangana, India
2 Department of Neurosurgery, Care Hospital, Hyderabad, Telangana, India

Date of Submission21-Dec-2019
Date of Decision14-Jan-2020
Date of Acceptance09-Feb-2020
Date of Web Publication09-Feb-2020

Correspondence Address:
Dr. Somita Christopher
Flat No. 504 B, Amsri Central Court, Near Lancer Lines, Secunderabad - 500 026, Telangana
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ija.IJA_915_19

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How to cite this article:
Christopher S, Gopal T V, Vardhan V. Thoracolumbar interfascial plane block, way forward for awake endoscopic laminectomies. Indian J Anaesth 2020;64:436-7

How to cite this URL:
Christopher S, Gopal T V, Vardhan V. Thoracolumbar interfascial plane block, way forward for awake endoscopic laminectomies. Indian J Anaesth [serial online] 2020 [cited 2020 May 30];64:436-7. Available from: http://www.ijaweb.org/text.asp?2020/64/5/436/283701



Sir,

Thoracolumbar interfascial plane (TLIP) block has been in vogue since 2015 when Hand et al.[1] speculated that TLIP block may provide adequate analgesia for minimally invasive spine surgery (MISS). We evaluated eight patients between the age group of 30 to 50 years to receive only TLIP block for single-level endoscopic lumbar discectomies for peri and post-operative analgesia. After informed consents, the patients were shifted to the operation theatre (OT) and Standard American Society of Anaesthesiology (ASA) monitors were applied and the patients placed in the prone position. The third lumbar vertebra was identified and marked with the help of ultrasound and confirmed with the C-arm. A curved low-frequency probe was placed transversely at the level of the third lumbar vertebrae and moved laterally on the side of the procedure to identify the plane between the longissimus (LG) and multifidus (MF) muscle. About 20 mL of 0.5% ropivacaine was injected using a 100 mm insulated needle in the plane. A second injection was done superficially to the paraspinal muscles with 5 mL of 0.5% ropivacaine [Figure 1]. All the patients received injection midazolam 2 mg for light sedation. Surgery was started 25 min after giving the block. The extent of the sensory loss was from T12 – L5 dermatomes. A single 2 cm port was placed 3 cm lateral to the midline on the side of the lesion for the transforaminal approach. None of the patients required additional analgesia during the surgery. The patents were comfortable for 24 h post-operatively and discharged after 1 day of hospital stay.
Figure 1: (a) Injection between the multifidus (MF) and longissmus (LG).SP-Spinous process. SAP- Superior articular process. LA-Local Anesthetic. N –Insulated needle. (b) Injection superficial to paraspinal muscles. MF-multifidus. LG –Longissmus.SP-Spinous process.SAP-Superior articular process.LA –Local Anaesthetic.N-Insulated needle

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TLIP block is a very simple and effective technique which blocks the dorsal rami of the spinal nerve as they pass through the paraspinal musculature. From medial-to-lateral, the multifidus, longissimus and iliocostalis muscles constitute three muscle group in the paraspinal area [Figure 2]. The basis of the TLIP block is to inject local anaesthetic in the plane between LG and MF that would spread proximally to the branch point of dorsal rami thus, anaesthetising all the nerves and muscles of the lumbar area. The second injection superior to the posterior thoracolumbar fascia is to ensure further subcutaneous blockade.
Figure 2: Magnetic Resonance Imaging: Axial view. A-Extruded disc pressing on the left root. B-Fat filled spaces between MF and LG containing branches of dorsal rami.SP-Spinous process.MF-Multifidus. LG-Longissmus. IL-Iliocostalis

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In this era of enhanced recovery after surgery, this block could be very beneficial. None of the eight patients required any additional opioids which negated the side effects of sedation, nausea and vomiting. This is one of the few reports in which awake surgery was done. In a randomised clinical trial done by Ammar et al., 102 patients were studied for the efficacy of TLIP block after administering general anaesthesia (GA) for lumbar discectomy with comparable results.[2] We injected 20 mL of 0.5% ropivacaine on the side of the surgery which gave adequate analgesia for 24 h (visual analogue score of 2) similar to the study done by Ueshima et al. where lower pain scores were reported after 24 h in patients who received GA with TLIP block as compared to patients who received GA only for lumbar laminoplasty.[3]

Therefore, we suggest that TLIP is an effective, relatively simple block which provides good analgesia for endoscopic lumbar laminectomies.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
   References Top

1.
Hand WR, Taylor JM, Harvey NR, Epperson TI, Gunselman RJ, Bolin ED, et al. Thoracolumbar interfascial plane (TLIP) block: A pilot study in volunteers. Can J Anesth 2015;62:1196-200.  Back to cited text no. 1
    
2.
Ammar MA, Tasimah M. Evaluation of thoracolumbar interfascial plane block for post operative analgesia after herniated lumbar disc surgery: A randomized clinical trial. Saudi J Anasth 2018;12:559-64.  Back to cited text no. 2
    
3.
Ueshima H, Ozawa T, Toyone T, Otake H. Efficacy of the thoracolumbar interfascial plane block for lumbar laminoplasty; A retrospective study. Asian Spine J 2017;11:722-5.  Back to cited text no. 3
    


    Figures

  [Figure 1], [Figure 2]



 

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