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

Hemispheric titanium porous coated acetabular component without screw fixation

L D Dorr1, Z Wan, J Cohen

  • 1USC Center for Arthritis and Joint Implant Surgery, Los Angeles 90033, USA.

Clinical Orthopaedics and Related Research
|July 1, 1998
PubMed
Summary

Primary total hip arthroplasty using screwless acetabular components shows stable fixation at 6 years. Improved polyethylene inserts may reduce reoperations for wear.

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

AIDS vaccines: is older better?

Science (New York, N.Y.)·1992
Same author

AIDS vaccines. Trials set in high-risk populations.

Science (New York, N.Y.)·1992
Same author

Dingell rips Healy for 'obstructionism'.

Science (New York, N.Y.)·1992
Same author

Meningococcal septicaemia in a C6-deficient patient and effects of plasma transfusion on lipopolysaccharide release.

Lancet (London, England)·1992
Same author

Pediatric AIDS vaccine trials set.

Science (New York, N.Y.)·1992
Same author

A comparative study of imipenem versus piperacillin plus gentamicin in the initial management of febrile neutropenic patients with haematological malignancies.

The Journal of antimicrobial chemotherapy·1992

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Engineering

Background:

  • Total hip arthroplasty (THA) aims to restore function and reduce pain.
  • Acetabular component fixation is crucial for long-term THA success.
  • Screw fixation is commonly used, but its necessity is debated.

Purpose of the Study:

  • To evaluate the long-term fixation and clinical outcomes of screwless anatomic porous replacement hemispheric acetabular components in primary THA.
  • To assess the influence of implantation technique on component stability.

Main Methods:

  • Prospective study of 115 hips in 108 patients undergoing primary THA with screwless acetabular components.
  • Mean follow-up of 6 years.
  • Clinical assessment using Harris hip score and SF-36; radiographic evaluation for loosening, wear, osteolysis, and migration.

Related Experiment Videos

Main Results:

  • No acetabular component revision for loosening; no radiographic evidence of loosening or significant migration.
  • 8% reoperation rate due to polyethylene insert wear or disassembly.
  • Stable fixation observed, with only 2% showing progressive radiolucent lines.
  • No intraoperative or postoperative acetabular bone fractures.

Conclusions:

  • Screwless fixation of hemispheric porous-coated acetabular components is reproducible and predictable in primary THA.
  • Implantation technique (bone preparation, press-fit) is key to fixation, not necessarily screw use.
  • Improved modular polyethylene insert design may decrease reoperation rates related to wear.