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

Alignment of total knee arthroplasty.

J L Smith1, H S Tullos, J P Davidson

  • 1Division of Orthopaedic Surgery, Baylor College of Medicine, Houston, Texas 77030.

The Journal of Arthroplasty
|January 1, 1989
PubMed
Summary

Total knee arthroplasty alignment did not impact long-term outcomes in this study. Varus alignment did not affect radiolucent lines, bone density changes, or clinical results like pain or range of motion.

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

Surgical Treatment of Recurrent Morton's Neuroma.

Orthopedics·2014
Same author

The effect of femoral component head size on posterior dislocation of the artificial hip joint.

The Journal of bone and joint surgery. American volume·2000
Same author

Pressurization and centralization enhance the quality and reproducibility of cement mantles.

Clinical orthopaedics and related research·1999
Same author

The morphology of the femur in developmental dysplasia of the hip.

The Journal of bone and joint surgery. British volume·1998
Same author

Proximal and distal femoral centralizers in modern cemented hip arthroplasty.

Clinical orthopaedics and related research·1998
Same author

Sciatic neuropathy secondary to intrapelvic migration of an acetabular cup. A case report.

The Journal of bone and joint surgery. American volume·1997

Area of Science:

  • Orthopedic surgery
  • Biomechanical engineering
  • Medical imaging

Background:

  • Total knee arthroplasty (TKA) aims to restore function and alleviate pain.
  • Historical belief suggests neutral alignment is critical for TKA longevity.
  • The precise role of pre-operative alignment on cemented TKA outcomes remains debated.

Purpose of the Study:

  • To evaluate the impact of knee joint alignment on the outcomes of cemented total knee arthroplasty.
  • To determine if varus alignment affects the incidence of radiolucent lines or clinical results.
  • To challenge the traditional view that strict mechanical axis alignment is essential for TKA durability.

Main Methods:

  • Retrospective review of 65 cemented total knee arthroplasties.
  • Radiographic analysis to assess mechanical axis alignment (varus/valgus).
  • Clinical examination assessing pain and range of motion at an average of 48 months follow-up.

Main Results:

  • Sixty-one of 65 TKAs exhibited varus alignment on the mechanical axis.
  • No significant correlation was found between alignment and radiolucent lines.
  • Alignment did not influence tibial metaphyseal density changes or clinical outcomes (pain, range of motion).

Conclusions:

  • The study could not confirm that alignment is critical for the durability of cemented total knee arthroplasty.
  • Mechanical axis alignment passing through the center of the knee joint may not be essential for successful TKA.
  • These findings suggest a potential re-evaluation of strict alignment protocols in TKA surgery.

Related Experiment Videos