Erector Spinae Versus Intercostal Nerve Blocks With Liposomal Bupivacaine for Analgesia in Thoracic Surgery

This study is comparing two types of nerve block injections used to manage pain after chest surgery: an erector spinae block (injected along the back muscles near the spine) versus an intercostal nerve block (injected between the ribs). Both use a long-acting local anesthetic called liposomal bupivacaine. **You may be eligible if...** - You are scheduled to have chest (thoracic) surgery - You are an adult who can consent to participate - You meet the general health requirements for elective surgery **You may NOT be eligible if...** - You have allergies to local anesthetic medications - You are pregnant or breastfeeding - You have bleeding disorders or take blood thinners that make nerve blocks unsafe - You have had prior surgery or anatomy changes in the relevant area Talk to your doctor to see if this trial is right for you.