NCT05277883

Influence of Knee Alignment and Pelvis Rotation on Accuracy of Radiograph Measurements Before Total Knee Arthroplasty

The Influence of Lower Extremity and Pelvic Alignment on Accuracy of Hip-Knee-Ankle Radiograph Measurements Before Total Knee Arthroplasty

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 112 (actual)
• Sponsor: Valdoltra Orthopedic Hospital · Academic / Other
• Sex: All
• Age: 50 Years
• Healthy volunteers: Not accepted

Summary

The aim of this study is to determine the accuracy of long leg standing X-rays with respect to coronal alignment of the knee.

Detailed description

Long leg standing x-ray is a routine examination to measure the femoral valgus angle before a total knee arthroplasty. Newer studies have shown that coronal leg alignment influences the rotation of the distal femoral part. This rotation might influence the measurements obtained with a long leg standing x-ray. The primary purpose of this study is to determine whether there is a significant difference between 2D measurements taken on the x-ray and 3D measurements obtained with a CT scan.

Conditions

• Knee Osteoarthritis

Interventions

Type	Name	Description
RADIATION	CT scan	CT of the lower limb

Timeline

• Start date: 2022-12-01
• Primary completion: 2024-12-25
• Completion: 2024-12-25
• First posted: 2022-03-14
• Last updated: 2025-03-30

Locations

1 site across 1 country: Slovenia