Arthroplasty, Total Hip Replacement
Conditions
Keywords
total hip, stem version, replacement, hip
Brief summary
The purpose of this study was to develop a radiological method to measure stem anteversion and to determine its validity and reliability.
Detailed description
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.
Interventions
RADIATIONRadiological measurement of femoral stem version
particular radiographs( lateral decubitus view) and CT scans
Sponsors
Seoul National University Bundang Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
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.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| stem anteversion of the hip radiograph(decubitus lateral view) | postoperative 4days |
| stem anteversion of the CT scan | postoperative 4days |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The correlation between stem anteversion of the decubitus lateral view and stem version of the CT scan | postoperative 4days | to determine ICC(intraclass coefficient, correlation coefficient) |
Countries
South Korea
Outcome results
None listed