Users Online: 921 Home Print this page Email this page Small font sizeDefault font sizeIncrease font size  
Home | About us | Editorial board | Search | Ahead of print | Current issue | Archives | Submit article | Instructions | Subscribe | Contacts | Login 

 

 
Table of Contents
LETTER TO EDITOR
Year : 2021  |  Volume : 37  |  Issue : 2  |  Page : 295-296

Pericapsular nerve group (PENG) block for hip fractures: Another weapon in the armamentarium of anesthesiologists


1 Department of Anesthesiology and Pain Management, HealthWorld Hospitals, Durgapur, West Bengal, India
2 Tata Motors Hospital, Jamshedpur, Jharkhand, India
3 BRD Medical College, Gorakhpur, Uttar Pradesh, India
4 Basavatarakam Indo-American Cancer Hospital and Research Institute, Hyderabad, Telangana, India

Date of Submission27-May-2020
Date of Acceptance01-Jun-2020
Date of Web Publication15-Jul-2021

Correspondence Address:
Dr. Rajendra Kumar Sahoo
Department of Anesthesiology and Pain Management, C-49, Commercial Area, Gandhi More, HealthWorld Hospitals, Durgapur - 713 216, West Bengal
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/joacp.JOACP_295_20

Rights and Permissions

How to cite this article:
Sahoo RK, Jadon A, Sharma SK, Nair AS. Pericapsular nerve group (PENG) block for hip fractures: Another weapon in the armamentarium of anesthesiologists. J Anaesthesiol Clin Pharmacol 2021;37:295-6

How to cite this URL:
Sahoo RK, Jadon A, Sharma SK, Nair AS. Pericapsular nerve group (PENG) block for hip fractures: Another weapon in the armamentarium of anesthesiologists. J Anaesthesiol Clin Pharmacol [serial online] 2021 [cited 2021 Jul 27];37:295-6. Available from: https://www.joacp.org/text.asp?2021/37/2/295/321403

Dear Editor,

We had been routinely doing either fascia iliaca compartment block (FICB) or femoral nerve block (FNB) in hip fractures with good result.[1] After the claimed analgesic efficacy of pericapsular nerve group (PENG) block, we decided to evaluate this block in our patients.[2] After informed written consent, we performed ultrasound (US)-guided PENG block in 9 patients posted for hip fracture surgery [Table 1]. All patients received PENG block in the preoperative area. Pre-block visual analogue scale (VAS) score at rest, and with 15° passive straight leg-raise (SLR) were recorded.

Standard monitoring (non-invasive blood pressure, pulse oximetry and ECG) was used. A curvilinear probe (2–5 MHz Vivid iq, GE Healthcare) was first placed at anterior superior iliac spine (ASIS) in transverse plane, and then moved caudally to identify anterior inferior iliac spine (AIIS). Then the probe was rotated to align AIIS and iliopubic eminence (IPE) [Figure 1]a. After iliopsoas tendon (IPT) and muscle were revealed together with femoral vessels superficially, 21 G 100 mm echogenic needle (Ultraplex®360, B Braun Melsungen, Germany) was inserted in-plane from lateral to medial and the tip was kept at the midpoint of AIIS and IPE, deep to the psoas tendon. Initially hydrolocation was deployed with normal saline to lift psoas tendon, and then, 20 ml of 0.25% bupivacaine with 4 mg dexamethasone was injected in 5 ml aliquots after negative aspiration [Figure 1]b. Local anesthetic (LA) spread was appreciated with lifting of IPT and medial spread [Figure 1]c. Then, VAS at rest and passive movement (15° SLR) was measured 30 min later. Subsequently, patients were taken to OT for spinal anesthesia (SA) [10–12 mg of hyperbaric 0.5% bupivacaine heavy in sitting position]. We also documented the ease of sitting for conduct of SA which was graded as: 0- not satisfactory, 1- satisfactory, 2- good, 3- optimal. At 24 h post-block, we also took patients' feedback on this block: 1- good, if necessary, will not hesitate for repeat block in future; 2- bad, will never opt for it. Duration of the surgery lasted between 70 and 90 min. All patients received intravenous (IV) paracetamol 1 gm towards the end of the surgery and 8th hourly thereafter along with IV tramadol 50 mg if VAS ≥5. None of the patients needed any additional analgesics in the PACU as VAS was 0 in the immediate postoperative period.
Table 1: Demographic data

Click here to view
Figure 1: (a) Figure showing position of the hip, probe orientation, and needle insertion. (b) Figure shows sonoanatomy of the block with needle (marked with white arrow) insertion from lateral to medial. Tip is below the psoas tendon (marked with asterix). FN- Femoral nerve, FA- Femoral artery, AIIS- Anterior inferior iliac spine, IPE- Iliopubic eminence. (c) Local anaesthetic (LA) spread just below the psoas tendon and further medially

Click here to view


VAS was assessed before and after block (both rest and movement), 6 h, 12 h, and 24 h postoperatively [Table 2]. Five out of 9 patients reported no pain (VAS 0) at rest and 4 reported VAS 1. Similarly, with dynamic movement, 1 patient reported no pain whereas rest described their VAS 1 to 2. At 24 h, highest pain score reported was 4 (by 4 patients), whereas 4 patients reported VAS 3 and 1 patient described VAS 1. The highest VAS was reported even during turning around in the bed and flexion of hip. However, none of the patients were mobilized in the first 24 h. Anesthesiologist performing SA reported that sitting position provided for SA was optimal, good and satisfactory in 56%, 22% and 22% patients, respectively.
Table 2: Visual Analogue Pain (VAS) score at various points (expressed as mean±SD)

Click here to view


PENG block is a musculofascial plane block between psoas tendon and pubic ramus targeting the articular branches of FN and accessory obturator nerve (AON).[2] Later, the same authors found that dye stains not only the articular branches of FN, AON but also obturator nerve (ON); thus, blocking all 3 sensory nerves innervating the anterior hip joint.[3] After the initial description, other authors had found similar analgesic benefit in hip arthroscopy.[4]

Unlike FICB and FNB, PENG block targets the pain carrying articular branches and this eliminates the risk of motor weakness produced by FICB and FNB. Girón-Arango et al. found median drop of 7 points in pain score following the PENG block.[2] We also noticed similar reduction in pain score in our series of patients. Although Yu et al. reported 2 cases of quadriceps weakness following PENG block we did not notice any side effects.[5]

There is a need to compare a case control study or comparative study between PENG and FICB to see analgesic benefit, ambulation, hospital stay and patient comfort in positioning for SA.

Acknowledgement

Authors sincerely acknowledge the inputs provided by Prof Philip Peng, Department of Anesthesia and Pain Management, Toronto Western Hospital, University of Toronto, Canada in refining the manuscript and critical suggestions.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

 
  References Top

1.
Scurrah A, Shiner CT, Stevens J, Faux S. Regional nerve blockade for early analgesic management of elderly patients with hip fracture – a narrative review. Anaesthesia 2018;73:769-83.  Back to cited text no. 1
    
2.
Girón-Arango L, Peng PWH, Chin KJ, Brull R, Perlas A. Pericapsular nerve group (PENG) block for hip fracture. Reg Anesth Pain Med 2018;43:859-63.  Back to cited text no. 2
    
3.
Tran J, Agur A, Peng P. Is pericapsular nerve group (PENG) block a true pericapsular block? Reg Anesth Pain Med 2019;44:257.  Back to cited text no. 3
    
4.
Orozco S, Munoz D, Jaramillo S, Herrera AM. Pericapsular nerve group (PENG) block for perioperative pain control in hip arthroscopy. J Clin Anesth 2019;59:3-4.  Back to cited text no. 4
    
5.
Yu HC, Moser JJ, Chu AY, Montgomery SH, Brown N, Endersby RV. Inadvertent quadriceps weakness following the pericapsular nerve group (PENG) block. Reg Anesth Pain Med 2019;44:611-3.  Back to cited text no. 5
    


    Figures

  [Figure 1]
 
 
    Tables

  [Table 1], [Table 2]



 

Top
 
  Search
 
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
    Access Statistics
    Email Alert *
    Add to My List *
* Registration required (free)  

 
  In this article
   References
   Article Figures
   Article Tables

 Article Access Statistics
    Viewed140    
    Printed0    
    Emailed0    
    PDF Downloaded36    
    Comments [Add]    

Recommend this journal