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

Spotting Cheetahs: Identifying Individuals by Their Footprints09:47

Spotting Cheetahs: Identifying Individuals by Their Footprints

15.3K
The cheetah (Acinonyx jubatus) is an iconic, endangered species, but conservation efforts are challenged by habitat shrinkage and conflict with commercial farmers. The footprint identification technique, a robust, accurate and cost-effective image classification system, is a new approach to monitoring...
15.3K
C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position12:25

C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position

4.5K
C-arm-free oblique lumbar interbody fusion at the L5-S1 level (OLIF51) and simultaneous pedicle screw fixation are performed in a lateral position under navigation guidance. This technique does not expose the surgeon or operating staff to radiation...
4.5K
Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study07:30

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

7.5K
This is a 3T magnetic resonance imaging study aiming to investigate grey matter volume differences between cannabis-induced psychosis patients and non-psychotic chronic cannabis...
7.5K
Whole-body PET/MRI of Pediatric Patients: The Details That Matter10:02

Whole-body PET/MRI of Pediatric Patients: The Details That Matter

15.2K
This article provides comprehensive step-by-step instructions for the acquisition of whole-body 2-deoxy-2-(18F)fluoro-D-glucose (18F-FDG) PET/MRI scans for cancer staging of pediatric patients. The protocol was developed for children above 6 years, or old enough to comply with breath-hold instructions, but can be used for general anesthesia patients as...
15.2K
Pioneering Patient-Specific Approaches for Precision Surgery Using Imaging and Virtual Reality06:18

Pioneering Patient-Specific Approaches for Precision Surgery Using Imaging and Virtual Reality

1.5K
Advancements in endovascular treatment have replaced complex open surgical procedures with minimally invasive options, like valve replacement and aneurysm repair. This paper proposes using three-dimensional (3D) modeling and virtual reality to aid in C-arm positioning, angle measurements, and roadmap generation for neuro-interventional catheterization lab procedural planning, minimizing procedure time.
1.5K
Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology10:46

Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology

13.7K
Radiation exposure is an underestimated risk in complex ablation procedures. Here, we describe a protocol to significantly decrease fluoroscopy time and dosage for both the patient and the lab staff by using a novel non-fluoroscopic catheter visualization...
13.7K

You might also read

Related Articles

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

Sort by
Same author

Early arthrogenic muscle inhibition is the dominant predictor of persistent quadriceps inhibition after total knee arthroplasty.

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA·2026
Same author

Short-term survivorship of a novel acetabular component with a combination of non-locking and variable-angle locking screws in complex acetabular reconstruction.

Hip international : the journal of clinical and experimental research on hip pathology and therapy·2026
Same author

Patient-Specific Medial Patellofemoral Ligament Femoral Footprint Mapping Using Compressed Lateral and Sagittal Sequence MRI in Patients With Trochlear Dysplasia.

JB & JS open access·2026
Same author

Modified Refixation Technique of Distal Deep and Superficial Medial Collateral Ligament Injuries.

Arthroscopy techniques·2026
Same author

Routine circumferential patellar denervation during total knee arthroplasty did not consistently eliminate neural structures at the lateral patellar border: A prospective randomised controlled trial with histological outcomes.

Journal of experimental orthopaedics·2026
Same author

Supraacetabular fossa is more prevalent in acetabular protrusion than in dysplastic hips.

Journal of hip preservation surgery·2026

Related Experiment Video

Updated: Jan 20, 2026

Spotting Cheetahs: Identifying Individuals by Their Footprints
09:47

Spotting Cheetahs: Identifying Individuals by Their Footprints

Published on: May 1, 2016

15.3K

CLASS-MRI validates patient-specific ACL footprints across variable fluoroscopic C-arm positioning: A cadaveric

Grégoire Thürig1, Marc Barrera Usó2, Raúl Panadero-Morales3

  • 1Articon Joint Practice, Bern, Switzerland.

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|January 19, 2026
PubMed
Summary

The Compressed Lateral and Anteroposterior Anatomical Systematic Sequences (CLASS) method accurately identifies anterior cruciate ligament (ACL) footprints. This patient-specific technique translates from MRI to surgery, regardless of C-arm positioning.

Keywords:
ACLCLASSMRIfemoral footprinttibial footprinttunnel placement

More Related Videos

C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position
12:25

C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position

Published on: September 16, 2022

4.5K
Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
07:30

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

7.5K

Related Experiment Videos

Last Updated: Jan 20, 2026

Spotting Cheetahs: Identifying Individuals by Their Footprints
09:47

Spotting Cheetahs: Identifying Individuals by Their Footprints

Published on: May 1, 2016

15.3K
C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position
12:25

C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position

Published on: September 16, 2022

4.5K
Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
07:30

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

7.5K

Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Anatomy

Background:

  • Accurate identification of anterior cruciate ligament (ACL) footprints (FPs) is crucial for successful anatomical reconstruction.
  • Current methods may lack precision, necessitating improved techniques for preoperative planning and intraoperative guidance.

Purpose of the Study:

  • To evaluate the accuracy of the Compressed Lateral and Anteroposterior Anatomical Systematic Sequences (CLASS) method for identifying femoral and tibial ACL FPs compared to anatomical dissection.
  • To assess the correlation between planned CLASS (pCLASS) and intraoperative fluoroscopy.
  • To determine the impact of C-arm positioning on CLASS accuracy.

Main Methods:

  • Ten cadaveric knees underwent MRI scans before and after dissection.
  • Anatomical CLASS (aCLASS) was created from dissected knee MRI with marked FPs.
  • Preoperative planning generated planned CLASS (pCLASS) from native knee MRI.
  • Fluoroscopic images were obtained with contralateral and ipsilateral C-arm positioning.
  • Statistical analyses included Friedman test, ANOVA, and paired t tests.

Main Results:

  • No significant differences were observed in femoral or tibial FP localization between aCLASS, pCLASS, and fluoroscopic measurements.
  • pCLASS showed no significant difference compared to both ipsilateral and contralateral fluoroscopic positions.
  • C-arm positioning did not significantly affect FP identification accuracy.

Conclusions:

  • The CLASS method provides accurate and reliable identification of ACL FPs, comparable to anatomical references.
  • CLASS is a validated, patient-specific tool that bridges preoperative planning (MRI) and intraoperative execution (fluoroscopy).
  • This technique standardizes ACL reconstruction, enhancing consistency across different surgical settings and surgeon experience levels.