Advertisement
< Vol. 22 Issue 3 | May-Jun 2012 | pp. 235 - 342

Flexion following hip resurfacing and factors that influence it

Flexion following hip resurfacing and factors that influence it

Hip Int 2012; 22(3): 266 - 273

Article Type: ORIGINAL ARTICLE

DOI:10.5301/HIP.2012.9280

Authors

George Grammatopoulos, Andrew Philpott, Kathleen Reilly, Hemant Pandit, Karen Barker, David W. Murray, Harinderjit S. Gill

Abstract

Flexion following arthroplasty of the hip is important for activities of daily living. Studies have highlighted a possible reduction in flexion following Metal-on-Metal Hip Resurfacing Arthroplasty (MoMHRA) but failed to account for inter-subject variability and the possible etiology for this reduction. This in vivo study aims to determine whether flexion is restored following MoMHRA and identify factors that influence it. Charnley Class A patients (n=112) that underwent MoMHRA were reviewed in a dedicated clinic assessing flexion (resurfaced and contra-lateral hips) and outcome. The difference in flexion between both hips was defined as flexion deficit (δflexion). Various patient (age, gender, BMI) and surgical (component orientation, size, head-neck-ratio, offset) factors were examined in terms of their effect on δflexion. MoMHRA-hips had significantly reduced flexion as compared to the native hips. This flexion-deficit correlated with contra-lateral maximum flexion, component size, head-neck-ratio and component orientation. The findings demonstrate that flexion following MoMHRA is strongly correlated to but is reduced in comparison to the native, disease-free, hip flexion. Surgical practice can minimise flexion-deficit and optimise function.

Article History

  • • Accepted on 3/6/2012
  • • Available online on 6/28/2012
  • • Published in print on 7/10/2012

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

  • Grammatopoulos, George [PubMed] [Google Scholar]
    Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Botnar Research Centre, Nuffield Orthopaedic Centre, Oxford - UK
  • Philpott, Andrew [PubMed] [Google Scholar]
    Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Botnar Research Centre, Nuffield Orthopaedic Centre, Oxford - UK
  • Reilly, Kathleen [PubMed] [Google Scholar]
    Nuffield Orthopaedic Centre, Oxford - UK
  • Pandit, Hemant [PubMed] [Google Scholar]
    Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Botnar Research Centre, Nuffield Orthopaedic Centre, Oxford - UK; and Nuffield Orthopaedic Centre, Oxford - UK
  • Barker, Karen [PubMed] [Google Scholar]
    Nuffield Orthopaedic Centre, Oxford - UK
  • Murray, David W. [PubMed] [Google Scholar]
    Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Botnar Research Centre, Nuffield Orthopaedic Centre, Oxford - UK; and Nuffield Orthopaedic Centre, Oxford - UK
  • Gill, Harinderjit S. [PubMed] [Google Scholar]
    Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Botnar Research Centre, Nuffield Orthopaedic Centre, Oxford - UK

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.