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

Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

You might also read

Related Articles

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

Sort by
Same author

Pain and mental-health scores significantly different in male and female football-players with traits of decision-reinvestment, but heart-rate-variability differences are unsupported.

Scientific reports·2025
Same author

Implementing ultrasound in emergency medical services: assessing physician proficiency and training requirements.

Scandinavian journal of trauma, resuscitation and emergency medicine·2025
Same author

Immune checkpoint inhibitor-induced pancreatic enzyme elevation in melanoma patients: Incidence, management and therapy-A multicentre analysis.

Journal of the European Academy of Dermatology and Venereology : JEADV·2024
Same author

Severe COVID-19 and its cardiopulmonary effects 6 and 18 months after hospital discharge.

Frontiers in cardiovascular medicine·2024
Same author

Nivolumab for locally advanced and metastatic cutaneous squamous cell carcinoma (NIVOSQUACS study)-Phase II data covering impact of concomitant haematological malignancies.

Journal of the European Academy of Dermatology and Venereology : JEADV·2023
Same author

Real-World Data for Lenvatinib in Radioiodine-Refractory Differentiated Thyroid Cancer (RELEVANT): A Retrospective Multicentric Analysis of Clinical Practice in Austria.

International journal of endocrinology·2020

Related Experiment Video

Updated: Jun 27, 2026

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration
05:05

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

[CT scans increase rotational accuracy in total knee arthroplasty].

R W Grafinger1, L Datz, W Hitzl

  • 1Universitätsklinik für Orthopädie, St. Johanns Spital Salzburg, Osterreich. r.grafinger@salk.at

Zeitschrift Fur Orthopadie Und Unfallchirurgie
|December 17, 2008
PubMed
Summary

Preoperative CT scans significantly improve femoral component rotation accuracy in total knee replacement surgery. This method reduces malrotation compared to traditional techniques, enhancing surgical outcomes.

More Related Videos

Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
08:15

Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy

Published on: February 17, 2023

Related Experiment Videos

Last Updated: Jun 27, 2026

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration
05:05

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
08:15

Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy

Published on: February 17, 2023

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Radiology

Background:

  • Femoral component rotation is critical in total knee replacement (TKR).
  • Existing intra-operative landmarks for femoral implantation have limitations in accuracy and reproducibility.
  • Accurate femoral orientation is essential for optimal TKR function and longevity.

Purpose of the Study:

  • To evaluate the efficacy of preoperative computed tomography (CT) scans in guiding femoral component orientation during TKR.
  • To compare the rotational accuracy of femoral implantation using CT-based measurements versus traditional intra-operative landmarks.

Main Methods:

  • A randomized prospective study involving 57 patients undergoing TKR.
  • Group A: Femoral component implantation guided by a fixed posterior condylar angle and surgeon's landmarks.
  • Group B: Femoral component implantation guided by preoperative CT-based posterior condylar angle measurements, with no surgeon variation allowed.

Main Results:

  • A statistically significant reduction in femoral malrotation was observed in Group B (CT-guided) compared to Group A (p < 0.000001).
  • The maximum malrotation in Group B was 2 degrees, versus 6 degrees in Group A.
  • 63.3% of components in Group B had no malrotation, compared to only 18.5% in Group A.

Conclusions:

  • Preoperative CT measurement of the posterior condylar angle is a simple and reproducible method.
  • This technique significantly enhances the rotational accuracy of the femoral component in total knee replacement.
  • Improved rotational accuracy can lead to better functional outcomes in TKR patients.