Advertisement

Intraoperative fluoroscopy with a direct anterior approach reduces variation in acetabular cup abduction angle

Abstract

Introduction

The purpose of this study was to compare acetabular cup position for 2 cohorts of total hip arthroplasty (THA) patients who had a direct anterior approach.

Methods

100 THA cases were performed with an anterior approach using intraoperative fluoroscopy (IF) to aid in cup positioning. Another group of 100 cases underwent THA with an anterior approach without the use of any fluoroscopy. Postoperative abduction and anteversion angles were measured using Martell’s hip analysis software.

Results

Mean abduction angle was 43.2° (standard deviation (SD) = 4.5°) for the IF group versus 37.5°(SD = 7.4°) for cases without IF (p<0.001). 18% more cases with IF fell within the Lewinnek safe zone (p<0.001); however, a similar number of cases had over 50° of abduction. The mean anteversion angles of the two groups were also significantly different (IF 21.8° vs. 24.9°) (p<0.01).

Conclusions

There was significantly less variation in cup position among the cases using IF with regards to abduction.

Hip Int 2017; 27(6): 573 - 577

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/hipint.5000507

Authors

Gens P. Goodman, Nitin Goyal, Nancy L. Parks, Robert H. Hopper Jr., William G. Hamilton

Article History

Disclosures

Financial support: Inova Health System.
Conflict of interest: N.G. and W.H. are paid consultants at Cayenne Medical, Stryker Orthopedics, and DePuy. Our research institute receives institutional support from DePuy, Biomet, Nimbic Systems, and Inova Health Systems.

This article is available as full text PDF.

  • If you are a Subscriber, please log in now.

  • Article price: Eur 36,00
  • You will be granted access to the article for 72 hours and you will be able to download any format (PDF or ePUB). The article will be available in your login area under "My PayPerView". You will need to register a new account (unless you already own an account with this journal), and you will be guided through our online shop. Online purchases are paid by Credit Card through PayPal.
  • If you are not a Subscriber you may:
  • Subscribe to this journal
  • Unlimited access to all our archives, 24 hour a day, every day of the week.

Authors

Affiliations

  • Anderson Orthopaedic Research Institute, Alexandria, Virginia - USA

Article usage statistics

The blue line displays unique views in the time frame indicated.
The yellow line displays unique downloads.
Views and downloads are counted only once per session.

No supplementary material is available for this article.