Continuous Erector Spinae Block Versus Continuous Edge of Laminar Block on The Quality of Analgesia and Diaphragmatic Excursion in Patients With Multiple Rib Fractures

Inclusion Criteria: * Aged between 21 and 65 years. * Both sexes. * With unilateral traumatic multiple fracture ribs (≥ 3), admitted to the surgical intensive care unit within the first day of trauma. Exclusion Criteria: * Patients' rejection. * Body mass index ≥ 35 (kg/m2). * Bleeding and Coagulation disorders. * Known hypersensitivity to the study drugs. * Vertebral deformity. * Respiratory, cardiac, renal or hepatic dysfunction. * Patients with major trauma involving extra-thoracic structures (e.g., head, spine, pelvis, and abdominal visceral injuries). * Mental or cognitive dysfunction, * History of chronic analgesic or drug abuse. * Local infection at the site of the block.