Caudal block anesthesia, leteral position Caudal block anesthesia is a form of neuraxial (epidural) anesthesia where a local anesthetic is injected into the caudal epidural space via the sacral hiatus, usually to provide pain relief for procedures below the umbilicus.
2. Anatomy: Accessed through the sacral hiatus, which is located at the base of the spine between the sacral cornua. The caudal epidural space is the continuation of the lumbar epidural space.
3. Procedure: The patient is placed in the lateral or prone position. The sacral hiatus is palpated, and a needle is inserted at a 45° angle, then leveled. After negative aspiration (no blood or CSF), the anesthetic is injected.
4. Common Drugs: Bupivacaine, Ropivacaine, Lidocaine Sometimes combined with epinephrine or opioids to prolong effect
5. Benefits: Excellent for postoperative analgesia Reduces the need for systemic opioids Minimal motor block when appropriately dosed
6. Risks/Complications: Bleeding or hematoma Infection Inadvertent dural puncture. Intrathecal or intravascular injection Nerve damage rarely.