Skip to Main Content

++

Big Picture

++

The bone between the hip and the knee is the femur. It is the longest and strongest bone in the body. The femur articulates proximally with the acetabulum and distally with the tibia and patella. The knee joint is formed by articulations of the femur, tibia, and patella. The knee joint enables flexion, extension, and minimal rotation of the femur and tibia. Also, it plays an important role in supporting the weight of the body during static positions and dynamic movement during gait.

++

Actions of the Knee Complex

++

The articulations between the femur, tibia, and patella form the knee joint and enable the following actions (Figure 36-1A):

++

  • Flexion. Movement in the sagittal plane, decreasing the knee joint angle.
  • Extension. Movement in the sagittal plane, increasing the knee joint angle.
  • Medial rotation. Movement toward the midline in the transverse or axial plane.
  • Lateral rotation. Movement away from the midline in the transverse or axial plane.

++
Figure 36-1
Graphic Jump Location

A. Actions of the knee joint. B. Compartments of the thigh. C. Muscles of the anterior compartment of the thigh.

++

Big Picture

++

The muscles of the thigh are divided by their fascial compartments (anterior, medial, and posterior) and may cross the hip or knee joint (Figure 36-1B). Identifying which joints the muscles cross and the side on which they cross can provide useful insight into the actions of these muscles (Table 36-1).

++
Table Graphic Jump Location
Table 36-1. Muscles of the Thigh 

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.

Ok

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.