Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Ultrasonography

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...

You might also read

Related Articles

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

Sort by

Same author

Generating synthetic CT from MR images for radiation-free computer-assisted quantification of hip morphology.

European journal of radiology·2026

Same author

CIM-VTP: Correlation-Guided Image Modeling With Visual-Textual Task Prompt for Universal Medical Image Registration.

IEEE transactions on medical imaging·2026

Same author

TPDPM: Text promptable diffusion probabilistic model for referring surgical instrument segmentation.

Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society·2026

Same author

CR-GLoCo: Cross-Resolution Learning via Global-Local Context Consistency for semi-supervised 3D medical segmentation.

Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society·2026

Same author

X2P-Net: Context-Aware 2D/3D Vertebra Localization.

Bioengineering (Basel, Switzerland)·2026

Same author

Subclass-Aware Contrastive Semi-Supervised Learning for Inflammatory Bowel Disease Classification from Colonoscopy Images.

Bioengineering (Basel, Switzerland)·2026

Search research articles

Related Experiment Video

Updated: Apr 21, 2026

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

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

Published on: July 2, 2021

What are the radiographic reference values for acetabular under- and overcoverage?

Moritz Tannast¹, Markus S Hanke, Guoyan Zheng

¹Department of Orthopaedic Surgery, Inselspital, University of Bern, Freiburgstrasse, 3010, Bern, Switzerland, moritz.tannast@insel.ch.

Clinical Orthopaedics and Related Research

|November 12, 2014

Summary

This study establishes radiographic reference values for hip acetabular coverage, defining both undercoverage (hip dysplasia) and overcoverage (femoroacetabular impingement). These values aid in evaluating hip conditions and predicting surgical outcomes.

More Related Videos

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

Published on: March 12, 2021

Related Experiment Videos

Last Updated: Apr 21, 2026

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

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

Published on: July 2, 2021

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

Published on: March 12, 2021

Area of Science:

Orthopedic Surgery
Radiology
Hip Biomechanics

Background:

Acetabular undercoverage (hip dysplasia) and overcoverage (pincer-type femoroacetabular impingement) are linked to hip osteoarthritis.
Limited radiographic reference values exist for excessive acetabular coverage compared to undercoverage.

Purpose of the Study:

To compare radiographic hip parameters in hips with deficient or excessive acetabular coverage against a control group.
To establish reference values for acetabular under- and overcoverage.

Main Methods:

Retrospective comparison of 11 radiographic parameters in 4 groups: hip dysplasia, control, overcoverage, and severe overcoverage hips.
Computerized assessment of parameters on anteroposterior pelvic radiographs, corrected for pelvic orientation using true lateral radiographs.
Data sourced from a cohort of 593 hips.

Main Results:

Significant differences in radiographic parameters were observed across the four groups, except for the crossover sign.
Parameters like lateral center-edge angle and acetabular arc increased from dysplasia to overcoverage groups.
Reference values for key parameters including lateral center-edge angle (23°-33°), extrusion index (17%-27%), and acetabular index (3°-13°) were determined.

Conclusions:

Established acetabular reference values define excessive and deficient hip coverage.
These values can assist in radiographic evaluation of symptomatic hips.
The findings may predict surgical outcomes and guide clinical decision-making for hip conditions.