Hip fractures are considered as a widespread problem on a global scale and significant public health issue in numerous nations.  On a worldwide scale, hip fractures are listed as one of the top 10 causes of disability.  Hip fractures frequently occur as urgent orthoedic incidents in the elderly population,and they are linked to notably high rates of morbidity and mortality.In most cases,surgical reduction and fixation represent definitive treatment approach.

Irrespective of the type of surgical procedure, hip surgeries cause significant postoperative pain which can result in further complications and patient dissatisfaction. Indeed, the need for optimal analgesia cannot be underestimated for hip surgeries wherein the patient clientele is mostly elderly and the joint is primarily involved in patient mobility.

The 2011 NICE guidelines for management of hip fractures recommend the use of IV paracetamol, opioids, and peripheral nerve blocks ^. Oral or intravenous analgesics, particularly opioids can cause unwarranted sedation, nausea, vomiting, respiratory depression, and delirium. The elderly population have a significant risk of delirium due to their age, co-morbidities, altered metabolic functions and physiology, or due to the under or over treatment of pain

Regional anesthetic techniques are increasingly being used to provide better pain control. Peripheral nerve blocks have several advantages such as, adequate pain management in the pre-operative and post-operative time, facilitate early mobilization, and reduction in the dose of opioids required and their related side effects .

The femoral nerve block block and the fascia iliaca compartment block (FICB) are commonly used analgesic techniques in hip surgeries. Both blocks have equivalent analgesic efficacy.

However, a disadvantage of the fascia iliaca block is the associated motor weakness of the surgical limb which can delay recovery and patient discharge 

The hip joint is innervated by branches of the obturator nerve, anterior obturator nerve, and the femoral nerve. Studies suggest that the anterior capsule of the hip joint is richly innervated by these nerves and is targeted to provide analgesia.

Recently, Girón-Arango ^(9), have described a novel anaesthetic modality named the pericapsular nerve group (PENG) block which anesthetizes the femoral nerve, obturator nerve, and the accessory obturator nerve while sparing the motor components. Studies have shown that the PENG block is efficient in providing postoperative analgesia in patients undergoing hip surgeries with preservation of quadriceps muscle strength

Ultrasound guidance improves visualization of anatomical structures, success rate, quality of sensory block, onset time, decreases dose of local anesthetics and complications.

There are very few studies that compare the efficacy of PENG vs FIB for postoperative analgesia in patients who underwent surgery for hip fracture.

In this study we aim to compare the preoperative and postoperative analgesic efficacy of ultrasound guided Pericapsular Nerve Group Block vs Fascia iliaca Block In Patients Undergoing Hip Fracture Surgery