The Relationship Between Operative and Radiologic Stem Version

Seoul National University Bundang Hospital40 enrolled

Overview

Investigators prospectively evaluate the accuracy of intraoperative stem anteversion in 40consecutive total hip arthroplasties.

In all hips, investigators measure femoral stem anteversion postoperatively with three-dimensional computed tomography reconstruction of the femur, using both the distal femoral epicondyles and the posterior femoral condyles to determine the femoral diaphyseal plane. And investigators compare the surgeon's estimate of intraoperative stem version and stem version of CT scan.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Arthroplasty Total Hip Replacement

Interventions

The Relationship Between Operative and Radiologic Stem VersionRADIATION

intraopertive surgeon's estimation and postoperative CT scan

Eligibility

Sex: ALLHealthy volunteers:

Medical Language ↔ Plain English

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.

Locations (1)

Seoul national University Bundang Hospital

Seongnam-si, Gyeounggi-do, South Korea

Outcomes

Primary Outcomes

Intraopertive surgeon's estimation and postoperative CT scan were taken to measure stem anteversion

Time frame: postoperative 4days

Secondary Outcomes

The correlation between stem anteversion of intraopertive surgeon's estimation and stem version postoperative CT scan

to determine ICC(intraclass coefficient, correlation coefficient)

Time frame: postoperative 4days

Data from ClinicalTrials.gov

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