Skip to Main Content


In the limbs, sensory fibers are distributed to an area further from the axis of the body than the motor fibers of the corresponding root. The skin innervation areas encroach on each other, which justifies the anesthesia of adjacent nerves.


Bones and joints are the main target for postoperative analgesia.


As a rule, joints receive innervation from the same nerves that innervate muscles that act on them.


Anterior aspect: deep peroneal nerve.


Posterior and medial aspects: tibial nerve.

Figure 140-1. Lower Limb Dermatomes, Myotomes, and Sclerotomes
Graphic Jump Location

Adapted from Jochum D and Delaunay L, with permission from AstraZeneca France.

Figure 140-2. Hip Joint Innervation
Graphic Jump Location
  • Anterior portion of the joint capsule: (1) branch of the femoral nerve (L1–L4) along the iliopsoas muscle.
  • Anteromedial portion: (2) a branch of the obturator nerve (L1–L4).
  • Posterior portion: (3) branches of the sciatic nerve.
  • Posteromedial portion: ramus from the nerve of the quadratus femoris muscle (L5–S2).
  • Posterolateral portion: rami of the superior gluteal nerve (L4–S1).
  • ++
    Figure 140-3. Knee Joint Innervation
    Graphic Jump Location
  • Anterior and anteromedial aspects: deep branches of the femoral nerve (1).
  • Posterior and inferolateral aspects: sciatic nerve (2).
  • Posterior aspect: contribution of articular rami of the deep branch of the obturator nerve (3).
  • Want remote access to your institution's subscription?

    Sign in to your MyAccess profile while you are actively authenticated on this site via your institution (you will be able to verify this by looking at the top right corner of the screen - if you see your institution's name, you are authenticated). Once logged in to your MyAccess profile, you will be able to access your institution's subscription for 90 days from any location. You must be logged in while authenticated at least once every 90 days to maintain this remote access.


    About MyAccess

    If your institution subscribes to this resource, and you don't have a MyAccess profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus.

    Subscription Options

    AccessAnesthesiology Full Site: One-Year Subscription

    Connect to the full suite of AccessAnesthesiology content and resources including procedural videos, interactive self-assessment, real-life cases, 20+ textbooks, and more

    $995 USD
    Buy Now

    Pay Per View: Timed Access to all of AccessAnesthesiology

    24 Hour Subscription $34.95

    Buy Now

    48 Hour Subscription $54.95

    Buy Now

    Pop-up div Successfully Displayed

    This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.