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

Prosthetic alignment and sizing in computer-assisted total knee arthroplasty.

Tomoyuki Matsumoto1, Nobuhiro Tsumura, Masahiro Kurosaka

  • 1Department of Orthopaedic Surgery, Hyogo Rehabilitation Center Hospital, Kobe, Japan. matsun@m4.dion.ne.jp

International Orthopaedics
|August 19, 2004
PubMed
Summary

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

Treatment of the infected total knee replacement combining DAIR with continuous local antibiotic perfusion: a preliminary case report series.

European journal of orthopaedic surgery & traumatology : orthopedie traumatologie·2026
Same author

Comparison of prosthetic/limb alignment, soft tissue balance, and clinical outcomes between two different prostheses in ground kinematically aligned total knee arthroplasty.

Clinical biomechanics (Bristol, Avon)·2025
Same author

Innovative Management of Brodie's Abscess: Continuous Local Antibiotic Perfusion in a 14-Year-Old Patient.

The American journal of case reports·2025
Same author

Intramedullary Spinal Cord Abscess due to Traumatic Esophageal Perforation Associated with Cervicothoracic Anterior Osteophytes: A Case Report.

Spine surgery and related research·2025
Same author

Management of Infected Tibial Nonunion: Combining Synthetic Bone Grafting with Continuous Local Antibiotic Perfusion (CLAP).

The American journal of case reports·2024
Same author

Intraoperative lateral laxity greater than 4° is associated with inferior functional improvement in posterior-stabilised total knee arthroplasty.

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA·2024

This study found that using a CT-free navigation system for total knee replacement resulted in better alignment compared to manual methods. However, surgeons must be cautious about potential femoral component oversizing with navigation systems.

Area of Science:

  • Orthopedic Surgery
  • Medical Technology

Background:

  • Total knee arthroplasty (TKA) aims to restore joint function and alignment.
  • Accurate component placement is crucial for long-term TKA success.

Purpose of the Study:

  • To compare the accuracy of total knee prosthesis implantation using a CT-free navigation system versus conventional manual techniques.
  • To evaluate potential differences in femoral component sizing between the two methods.

Main Methods:

  • Sixty posterior stabilized total knee prostheses (P.F.C. Sigma) were implanted.
  • Thirty cases utilized a CT-free navigation system (Vector Vision), with 30 matched-paired controls receiving conventional implantation.
  • Postoperative long-leg radiographs were analyzed for alignment and component positioning.

Related Experiment Videos

Main Results:

  • The navigation group demonstrated significantly improved alignment compared to the conventional group.
  • While preoperative femoral condyle dimensions were similar, the navigation group showed a significantly larger postoperative anteroposterior dimension.
  • This suggests a tendency towards oversizing the femoral component in the navigation group.

Conclusions:

  • CT-free navigation systems can enhance alignment accuracy in total knee arthroplasty.
  • Surgeons must remain vigilant to prevent femoral component oversizing when employing navigation technology.
  • Careful preoperative planning and intraoperative assessment are essential for optimal TKA outcomes with navigation.