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 Concept Videos

Notch Signaling Pathway03:14

Notch Signaling Pathway

4.6K
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
4.6K

You might also read

Related Articles

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

Sort by
Same author

Long-Term Clinical and Radiographic Osseointegration Outcomes of a Highly Porous 3D-Printed Titanium Collar Compared with a Hydroxyapatite-Coated Collar in Megaprostheses.

Journal of functional biomaterials·2026
Same author

Intramedullary osteoblastoma of the femur: a case report.

Skeletal radiology·2026
Same author

The "CHARKAJ line": A novel radiographic parameter for the evaluation of adult hip dysplasia.

Clinical imaging·2026
Same author

Test yourself question & answer: a middle-aged man presents with an enlarging suboccipital mass.

Skeletal radiology·2026
Same author

Benign notochordal cell tumours of the spine: imaging characteristics and longitudinal imaging follow-up.

European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·2026
Same author

Test yourself question: a middle-aged man presents with an enlarging suboccipital mass.

Skeletal radiology·2026

Related Experiment Video

Updated: May 4, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
08:03

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model

Published on: November 4, 2025

446

Correlation between trochlear dysplasia and the notch index.

Rajesh Botchu1, Haron Obaid, W J Rennie

  • 1Department of Musculoskeletal Radiology, University Hospitals of Leicester, Leicester, UK.

Journal of Orthopaedic Surgery (Hong Kong)
|December 25, 2013
PubMed
Summary

The notch index and trochlear morphology are independent. A narrow notch, as seen on MRI, does not necessarily indicate a shallow trochlear groove in patients.

Keywords:
anterior cruciate ligamentknee injuries

More Related Videos

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis
06:28

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

Published on: September 2, 2025

2.1K
Ocular Kinematics Measured by In Vitro Stimulation of the Cranial Nerves in the Turtle
10:49

Ocular Kinematics Measured by In Vitro Stimulation of the Cranial Nerves in the Turtle

Published on: June 2, 2018

7.7K

Related Experiment Videos

Last Updated: May 4, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
08:03

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model

Published on: November 4, 2025

446
Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis
06:28

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

Published on: September 2, 2025

2.1K
Ocular Kinematics Measured by In Vitro Stimulation of the Cranial Nerves in the Turtle
10:49

Ocular Kinematics Measured by In Vitro Stimulation of the Cranial Nerves in the Turtle

Published on: June 2, 2018

7.7K

Area of Science:

  • Orthopedic imaging
  • Knee biomechanics

Background:

  • Trochlear dysplasia is a common cause of anterior knee pain and instability.
  • The notch index, a measure of the intercondylar notch width on MRI, has been proposed as an indicator of trochlear morphology.

Purpose of the Study:

  • To evaluate the correlation between trochlear dysplasia and the notch index using magnetic resonance imaging (MRI).

Main Methods:

  • MRI scans of 95 knees were reviewed by musculoskeletal radiologists.
  • Knees were classified for trochlear dysplasia (normal, Dejour types A-D) and notch index (<0.2 considered narrow).
  • Comparisons were made between normal knees and those with trochlear dysplasia.

Main Results:

  • 60 of 95 knees exhibited trochlear dysplasia (39 type A, 13 type B, 7 type C, 1 type D).
  • Mean notch indices were comparable between normal and dysplastic knees (0.161 vs. 0.157, p=0.18).
  • A narrow notch index was not associated with ACL injury or specific types of trochlear dysplasia.

Conclusions:

  • The notch index and trochlear morphology are independent imaging findings.
  • A narrow intercondylar notch does not predict a shallow trochlear groove.