Does external femoral rotation on an AP-radiograph reduce the accuracy of preoperative planning of total hip arthroplasty?

Recruiting

• Conditions: Coxarthrosis; Osteoarthritis of the hip; 10023213

• Registration Number: NL-OMON48490
• Lead Sponsor: Deventer Ziekenhuis

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Last Update Posted: 15 April 2024

Recruitment & Eligibility

• Status: Recruiting
• Sex: Not specified
• Target Recruitment: 65

Inclusion Criteria

• Patients undergoing elective THA;
• Patients are able to place their foot exactly in the required positions for
radiographs;
• Patients are over 18 years of age at the time of surgery;
• Patients who are capable, willing, and able to give informed consent for
their participation in the study.

Exclusion Criteria

• Patients undergoing a revision of a total hip arthroplasty;
• Patients who are unable to place their leg in the required positions;
• Patients who have a prosthesis in the contralateral hip, causing distortion
on radiographs;
• Severe metabolic disorders that may impair bone formation or compromise the
affected extremity which makes digital planning highly unreliable according to
the operating surgeons* judgement;
• Patients who are unable to read and/or write in Dutch.

Study & Design

• Study Type: Observational non invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p> The main study parameter will be the proportion of agreement of femoral<br /><br>components planned for each of the externally rotated radiographs, compared to<br /><br>the *gold standard* (15-20o of internal rotation). </p><br>

Secondary Outcome Measures

Name	Time	Method
<p>Difference between Patient Reported Outcome Measures (PROMs) before and 1 year<br /><br>after surgery per radiographical view.</p><br>