Articular branch of the accessory obturator nerve

The **articular branch of the accessory obturator nerve** is a small nerve branch present in about 10–30% of people and arises from the accessory obturator nerve, itself a variable branch of the lumbar plexus, typically from L3–L4[2][3][4]. The nerve descends along the medial border of the psoas major muscle, crosses the superior ramus of the pubis, and divides into branches; one of these is distributed to the hip joint capsule[3]. This branch contributes both **motor and sensory innervation to the hip joint**, especially supporting the function and stability of the hip during movement[2][4]. The presence, course, and branching of the accessory obturator nerve (and hence its articular branch) is highly variable and is not present in all individuals[2][4]. **Therapeutic target status:** This is not a typical therapeutic molecular target such as a receptor, enzyme, or transporter; it is a small anatomical nerve branch. It is considered in clinical, anesthetic, and surgical procedures such as regional nerve blocks of the hip but is *not* a molecular target for drugs or biotherapeutics[4][6]. **Incorrect as a therapeutic target:** The articular branch of the accessory obturator nerve is an anatomical entity, not a druggable molecular target. If the query is about drug development or molecular pharmacology, this is *not* a relevant target. **Clinical context:** Knowledge of this branch is important for certain nerve block procedures (such as PENG block for hip analgesia) and in hip surgery because anatomical variation can influence procedural success and nerve injury risk[6]. No drugs, biomarkers, or well-defined disease associations are related to this nerve branch, but inadvertent injury or inadequate blockade can affect hip pain and function[4][6]. **Summary:** The articular branch of the accessory obturator nerve is a small, highly variable nerve branch that supplies the hip joint capsule with motor and sensory fibers. It is important in anatomical, surgical, and anesthetic contexts, but **is not a molecular or therapeutic target** in the conventional sense[2][3][4][6].

Other names

Accessory obturator articular branchArticular branch of accessory obturator nerveAON articular branch