Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

The trochlea is bilinear and oriented medially.

M Barink1, S van de Groes, N Verdonschot

  • 1Orthopaedic Research Laboratory, University Medical Center Nijmegen, Nijmegen, The Netherlands. m.barink@orthop.umcn.nl

Clinical Orthopaedics and Related Research
|June 5, 2003
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The intact meniscus and an artificial meniscus prosthesis both act as a shock absorber in the knee joint.

The Knee·2026
Same author

Exploring healthy knee kinematic phenotypes obtained through dynamic CT imaging: A cluster analysis study.

Journal of biomechanics·2024
Same author

The first-generation anatomical medial meniscus prosthesis led to unsatisfactory results: a first-in-human study.

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA·2022
Same author

The sensitivity of an anatomical coordinate system to anatomical variation and its effect on the description of knee kinematics as obtained from dynamic CT imaging.

Medical engineering & physics·2022
Same author

The importance of continuous remnant preservation in anterior cruciate ligament reconstruction.

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA·2021
Same author

Biomechanical loading of the porcine femorotibial joint during maximal movements: An exploratory, ex vivo study.

Veterinary journal (London, England : 1997)·2020

The trochlea, crucial for knee replacement function, has a complex, non-linear orientation. This study reveals its distal part angles slightly laterally, while the proximal part angles medially, independent of femur size.

Area of Science:

  • Orthopedic surgery
  • Biomechanics
  • Anatomy

Background:

  • Patellofemoral problems are a common cause of total knee replacement (TKR) failure.
  • The trochlea's geometry significantly impacts patellofemoral joint function during knee flexion and extension.
  • Existing literature presents conflicting findings regarding the trochlear orientation relative to the mechanical axis.

Purpose of the Study:

  • To resolve the controversy surrounding trochlear orientation in the literature.
  • To ascertain if trochlear orientation is a linear or non-linear geometric feature.
  • To investigate the potential dependence of trochlear orientation on femur size.

Main Methods:

  • Utilized a 3D measurement system to analyze the trochlear geometry of 100 human femurs.

Related Experiment Videos

  • Quantified trochlear orientation relative to established anatomical landmarks.
  • Statistical analysis was performed to assess linearity and size dependency.

    • Main Results:

    • The trochlea is best characterized as having a bilinear orientation.
    • The distal trochlear segment exhibits a mean lateral orientation of 0.2° (±2.8°).
    • The proximal trochlear segment demonstrates a mean medial orientation of 4.2° (±3.2°).
    • Trochlear orientation was found to be independent of femur size.

    Conclusions:

    • The trochlear orientation is not linear but bilinear, with distinct proximal and distal angulations.
    • These findings provide critical geometric data for understanding patellofemoral mechanics in TKR.
    • The orientation's independence from bone size simplifies its application in prosthetic design and analysis.