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Related Concept Videos

Knee Joint01:23

Knee Joint

3.7K
The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
3.7K
Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

9.1K
The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
9.1K

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Related Experiment Video

Updated: Mar 23, 2026

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
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In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

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Functional knee assessment with advanced imaging.

Keiko Amano1, Qi Li1,2, C Benjamin Ma3

  • 1Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, USA.

Current Reviews in Musculoskeletal Medicine
|April 8, 2016
PubMed
Summary
This summary is machine-generated.

Imaging techniques help assess knee joint stability after anterior cruciate ligament (ACL) reconstruction, revealing subtle laxity. This aids in improving surgical methods and patient outcomes for ACL repair.

Keywords:
ACLAdvanced imagingAnterior cruciate ligamentKnee assessmentKnee jointReconstruction

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Area of Science:

  • Orthopedic surgery
  • Biomechanical analysis
  • Medical imaging

Background:

  • Anterior cruciate ligament (ACL) reconstruction aims to restore knee stability and prevent further joint damage.
  • Persistent joint laxity after ACL reconstruction is a recognized clinical challenge.
  • Subtle knee joint motions are often undetectable through physical examination alone.

Purpose of the Study:

  • To evaluate the role of advanced imaging in quantifying knee joint laxity post-ACL reconstruction.
  • To explore how imaging can provide objective biomechanical data for surgical assessment.

Main Methods:

  • Utilized various imaging modalities: fluoroscopy, computed tomography (CT), and magnetic resonance imaging (MRI).
  • Measured translational and rotational movements of the tibiofemoral joint.
  • Analyzed knee joint biomechanics under various stresses and movements.

Main Results:

  • Imaging modalities offer precise measurements of joint motion, exceeding physical examination capabilities.
  • Each imaging technique provides unique insights into knee biomechanics, despite individual strengths and limitations.
  • Enhanced understanding of dynamic knee joint movements after surgical intervention.

Conclusions:

  • Advanced imaging is crucial for detecting and quantifying residual joint laxity after ACL reconstruction.
  • Objective biomechanical data from imaging can inform the refinement of surgical techniques.
  • Improved understanding of post-operative knee dynamics can lead to better patient outcomes.