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Completed

NCT Number: NCT02554149

Radiological Measurement of Femoral Stem Version Using Lateral Decubitus Method: A Prospective Study

The purpose of this study was to develop a radiological method to measure stem anteversion and to determine its validity and reliability.

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Key information

Conditions

Arthroplasty Total Hip Replacement

Sex eligibility

All sexes

Study type

Observational

Primary location

Seoul national University Bundang Hospital

Seongnam-si, Gyeounggi-do, 463-707, South Korea

About this study

Version of the femoral stem is an important factor influencing the risk of dislocation after total hip replacement (THR) as well as the position of the acetabular component. However, there is no radiological method of measuring stem anteversion described in the literature. Investigators propose a radiological method to measure stem version and have assessed its reliability and validity. In 40 patients who underwent THR, a hip radiograph and CT scan were taken to measure stem anteversion.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Investigators recruited 40 consecutive patients who underwent THR between October 2015 and December 2015

Exclusion criteria

  • patients who could not extend the hip because of a residual flexion contracture.
  • who had a flexion contracture of the knee or who could not flex the hip to 90° even after THR were excluded because participants could not adopt the posture required for the particular radiographs and CT scans.

Treatment and study plan

Radiological measurement of femoral stem version

Radiation

particular radiographs( lateral decubitus view) and CT scans

Primary outcomes

  1. stem anteversion of the hip radiograph(decubitus lateral view)

    Time frame: postoperative 4days

  2. stem anteversion of the CT scan

    Time frame: postoperative 4days

Secondary outcomes

  1. The correlation between stem anteversion of the decubitus lateral view and stem version of the CT scan

    Time frame: postoperative 4days

    to determine ICC(intraclass coefficient, correlation coefficient)

Sponsors and collaborators

Lead sponsor

Seoul National University Bundang Hospital

Other

Registry information

Important dates

Study start
2015
Primary completion
2016
Study completion
2016
First posted
Sep 18, 2015
Registry last updated
Mar 29, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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