Pubic tubercle
Latintuberculum pubicum ossis pubis
Caption 2Pelvis. Pubic tubercle is 4d.

The pubic tubercle is a prominent tubercle on the superior ramus of the pubis bone of the pelvis.

Structure

The pubic tubercle is a prominent forward-projecting tubercle on the upper border of the medial portion of the superior ramus of the pubis bone. The inguinal ligament attaches to it.[1] Part of the abdominal external oblique muscle inserts onto it.[1] The inferior epigastric artery passes between the pubic tubercle and the anterior superior iliac spine.[2] The pubic spine is a rough ridge that extends from the pubic tubercle to the upper border of the pubic symphysis.

Clinical significance

The pubic tubercle may be palpated.[3] It serves as a landmark for local anaesthetic of the genital branch of the genitofemoral nerve, which lies slightly lateral to the pubic tubercle.[3] This may also be used for the obturator nerve.[4]

Hernias

The pubic tubercle is a useful landmark for identifying hernias.[5] An inguinal hernia will lie anteromedial to the pubic tubercle.[5] A femoral hernia will lie inferolateral to the pubic tubercle.[5]

References

  1. ^ Jacob, S. (2008-01-01), "Chapter 4 - Abdomen", Human Anatomy, Jacob, S. (ed.), Churchill Livingstone, pp. 71–123, doi:10.1016/b978-0-443-10373-5.50007-5. ISBN 978-0-443-10373-5, retrieved 2021-01-22
  2. ^ Garcia-Tsao, Guadalupe (2018-01-01), "15 - Ascites and Hyponatremia", Zakim and Boyer's Hepatology (Seventh Edition), Sanyal, Arun J. (ed.), Philadelphia: Elsevier, pp. 220–232.e4, ISBN 978-0-323-37591-7, retrieved 2021-01-22
  3. ^ Narchi, Patrick; Singelyn, François; Paqueron, Xavier (2008-01-01), "Chapter 49 - Truncal Blocks", Raj's Practical Management of Pain (Fourth Edition), Benzon, Honorio T. (ed.), Philadelphia: Mosby, pp. 905–915, ISBN 978-0-323-04184-3, retrieved 2021-01-21
  4. ^ Candido, Kenneth D. & Benzon, Honorio T. (2005-01-01), "Chapter 76 - Lumbar Plexus, Femoral, Lateral Femoral Cutaneous, Obturator, Saphenous, and Fascia Iliaca Blocks", Essentials of Pain Medicine and Regional Anesthesia (Second Edition), Benzon, Honorio T. (ed.), Philadelphia: Churchill Livingstone, pp. 645–658, ISBN 978-0-443-06651-1, retrieved 2021-01-22
  5. ^ Jacob, S. (2008-01-01), "Chapter 6 - Lower limb", Human Anatomy, Jacob, S. (ed.), Churchill Livingstone, pp. 135–179, doi:10.1016/b978-0-443-10373-5.50009-9. ISBN 978-0-443-10373-5, retrieved 2021-01-22