Preemptive pericapsular nerve group block to facilitate sitting position for neuraxial anesthesia in patients with acetabular fractures: A case series

Impact of Different Volumes of Pericapsular Nerve Group Block on Pain During Spinal Anesthesia Positioning and Postoperative Opioid Requirements in Femoral Fracture Surgeries; Randomized Prospective Study

Introduction

Hip fracture surgeries in patients present significant challenges, particularly in managing pain during spinal anesthesia positioning. The Pericapsular Nerve Group Block (PENG) has shown promise in addressing this issue, but the ideal volume of local anesthetic for PENG is still uncertain. In our study, we aimed to analyze the effects of administering PENG block with two different volumes on analgesic quality for patients undergoing hip fracture surgery.

Methods

In this prospective, randomized controlled trial, the effects of administering a PENG block with 20 mL versus 30 mL of local anesthetic in patients undergoing hip fracture surgery under spinal anesthesia were compared. The primary outcome was pain during spinal anesthesia positioning, and secondary outcomes included postoperative pain scores and opioid consumption.

Results

A total of 60 patients were analyzed, with 30 in each group. Critical parameters such as the time of spinal anesthesia administration and the satisfaction of the anesthesiologist showed no significant differences (p=0.918; p=0.741, respectively). NRS scores recorded before, during, and after the positioning for spinal anesthesia exhibited similar patterns (p=0.290; p=0.247; p=0.288, respectively). The cumulative opioid requirements did not exhibit a statistically significant difference at 24 hours (p = 0.098). Quadriceps weakness was significantly more in the PENG-30 group 6 hours after surgery but had recovered by the 9th hour (p= 0.004).

Conclusion

In patients undergoing hip fracture surgery, the effects of applying the PENG block with 20 mL or 30 mL of local anesthetic are comparable in terms of positioning for spinal anesthesia and postoperative analgesic requirements.

The pericapsular nerve group block, a highly selective blockage for intracapsular hip fractures: A case series

Hip fracture is a very frequent clinical situation in the elderly and frail patient. The Pericapsular Nerve Group (PENG) has emerged as a highly selective block for the intracapsular hip fractures. We describe 44 patients with intracapsular hip fractures who underwent a PENG block in addition to spinal anaesthesia with. The main objective was to assess post-surgical pain control at the recovery room and after 24 h. Also, we considered the need for first of second analgesic rescue during the first 24 h after surgery. Only 10 patients presented mild pain at the recovery room. Up to 30 of them had pain after 24 h. However, 25 of these patients reported having mild pain. Only 9 patients required analgesic rescue for postoperative pain control. In conclusion, PENG block is a locoregional technique that allows good postoperative pain control and low opioid consumption during the postoperative period of intracapsular hip fractures.

Comparison of pericapsular nerve group block and femoral nerve block in spinal anesthesia position analgesia for proximal femoral fractures in geriatric patients: a randomized clinical trial

BACKGROUND

This study aimed to compare the analgesic efficacy of the femoral nerve block (FNB) with that of the pericapsular nerve group (PENG) block in the lateral decubitus position for spinal anesthesia in geriatric hip fracture surgery.

METHODS

Patients aged ≥65 years scheduled to undergo hip fracture surgery for proximal femur fractures with an American Society of Anesthesiologists physical status of class I-IV and body mass index of 18-40 kg/m2 were included in the study. The PENG block or FNB was performed 20 min before positioning for spinal anesthesia. Lateral position, hip flexion, and lumbar spine flexion pain were evaluated during spinal anesthesia.

RESULTS

Sixty patients completed the study. The median pain scores for lateral positioning were 2 (0-4) and 2.5 in the PENG and FNB groups, respectively (P=0.001). The median pain scores during hip flexion were 1 (0-4) and 2.5 in the PENG and FNB groups, respectively (P<0.001). The median pain score during lumbar flexion was 1 (0-4) and 2.0 in the PENG and FNB groups, respectively (P=0.001). The two groups did not show a significant difference in the quality of the spinal anesthesia position (P>0.05).

CONCLUSION

Pre-operative PENG block is more effective in reducing the pain associated with spinal anesthesia position than FNB in geriatric hip fractures. Both blocks had a similar effect on posture quality and the number of spinal interventions.

Efficacy of pericapsular nerve group (PENG) block on perioperative pain management in elderly patients undergoing hip surgical procedures: a protocol for a systematic review with meta-analysis and trial sequential analysis

INTRODUCTION

An increasing number of elderly patients suffer from hip diseases associated with moderate to severe perioperative pain during the accelerating global ageing process. Optimal analgesia can decrease perioperative complications and facilitate elderly patients' perioperative recovery. Pericapsular nerve group (PENG) block is a relatively new, analgesia adequate and motor-sparing block technique for perioperative pain management of hip diseases. However, the efficacy of PENG block remains unclear as the limited clinical evidence. Then, we will perform a protocol for a systematic review and meta-analysis to identify the efficacy of PENG block for perioperative pain management.

METHODS AND ANALYSIS

PubMed, Ovid Medline, Cochrane Library, Embase, Web of Science, China National Knowledge Infrastructure, Chinese BioMedical Literature, Wanfang and VIP databases will be searched from inception to August 2022 to identify randomised controlled trials of elderly patients accepting PENG block for hip diseases. The primary outcome will be the pain intensity after pain management. Secondary outcomes will be quadriceps strength, perioperative rescue analgesia information and perioperative complications. Assessment of heterogeneity will be primarily inspected by forest plots. If there is no indication of funnel plot asymmetry, a random-effects meta-analysis will be performed. The Cochrane risk-of-bias tool, Grading of Recommendations Assessment, Development and Evaluation and trial sequential analysis will be conducted to evaluate the evidence quality and control the random errors. Funnel plots and Egger's regression test will be performed to evaluate publication bias.

ETHICS AND DISSEMINATION

Ethical approval was not required for this systematic review protocol. The results will be disseminated through peer-reviewed publications.

PROSPERO REGISTRATION NUMBER

CRD42022313895.