Lateral branch of dorsal ramus of spinal nerve

The **lateral branch of the dorsal ramus of a spinal nerve** is an anatomical subdivision of the dorsal (posterior) ramus, which itself is one of the two main branches of the mixed spinal nerve after it exits the intervertebral foramen[1][3]. In various regions: - **In the back and neck**, lateral branches contribute motor innervation to deep (intrinsic) back muscles and, depending on region, sensory innervation to adjacent skin[1][3]. - **In the sacral region**, the lateral branches of sacral dorsal rami (notably S1–S4) form part of a network involved in innervation of the posterior sacroiliac joint[4]. Variation in their anatomy is clinically significant, especially for interventional pain management procedures (lateral branch blocks, radiofrequency ablation) targeting sacroiliac joint–mediated pain[4]. - These are not molecular targets, receptors, or proteins, but macroscopic anatomical nerve branches essential for regional muscle and sensory function[1][3][4]. The entry is considered incorrect as a therapeutic "target molecule/receptor," as it is not a molecule, receptor, enzyme, channel, etc., but a gross anatomical nerve branch. No canonical abbreviation or molecular classification (such as "G protein-coupled receptor") is applicable to this structure. There are no known drugs with a defined mechanism of action at the molecular level that target this structure (other than, e.g., local anesthetics used to block conduction for pain procedures)[4]. Summary: "Lateral branch nerve" is an anatomical nerve branch, not a molecular target, and should not be considered a therapeutic target in the context of molecular pharmacology, drug development, or receptor biology. Its main relevance is in regional nerve block or ablation therapies for pain management, notably in the sacroiliac region[4].

Other names

lateral branchlateral branch nervelateral branches of dorsal ramisacral lateral branch