Volume Dependent Effect of Pericapsular Nerve Block

In PENG block technique, the local anesthetic agent is injected between the psoas tendon and the pubic ramus to block the sensory branches of the nerves which innervates the hip capsule for providing analgesia without causing muscle weakness. Since the PENG block is a facial plane block, it causes a volume dependent distribution. There are a few case reposts and cadaveric studies on volume dependent effect of analgesia and motor weakness of PENG block. In our study, we aimed to evaluate the clinical effects of the volume-dependent efficacy of PENG block.

Inclusion Criteria: * Patients who will undergoing proximal femur surgery * Patients over the age of 18 * ASA I-II-III patients * Patients who will be operated under spinal anesthesia Exclusion Criteria: * ASA IV patients, Pregnant women * Patients who are not suitable for spinal anesthesia * Patients diagnosed with Alzheimer's and dementia who cannot cooperate * Patients who are not suitable for peripheral nerve block (patients with infection in the injection area, with local anesthetic allergy, with coagulopathy) * Patients who do not want to participate in the study * Patients under the age of 18 * Patients switched to general anesthesia