Comparison of analgesic efficacy between Fascia iliaca compartment block (FICB), Femoral nerve block (FNB) and PEricapsular Nerve Group block (PENG) in patients with Hip Fractures: A randomized double blind trial.

Hip fracture is a common orthopedic emergency in elderly people which can result in significant morbidity and mortality. Spinal anesthesia is the  most commonly used anesthetic technique to fix these fractures.Hip surgery leads to moderate to severe pain which, if poorly controlled is associated with longer hospital length of stay, delayed ambulation and increased risk of delirium. Regional analgesia techniques, including Femoral nerve block(FNB) and Fascia iliaca compartment block(FICB) have become increasingly popular and commonly used for better perioperative pain control and opioid sparing effects. But both of these blocks lead to lower limb weakness.

In recent times, the Pericapsular nerve group block (PENG) has emerged superior to both FNB and FICB due to complete anesthesia of the joint capsule with motor sparing effects. To date, the analgesic efficacy of ultrasound guided FICB has not been directly compared with those of ultrasound guided FNB or PENG block. So this prospective randomised study is designed to compare immediate pain relief at 30min after the block and pain relief while positioning patients for spinal anesthesia before femoral neck fracture repair between PENG, FNB and FICB.