Phenotyping the Alignment of the Lower Limb
Phenotyping the Alignment and Rotational Parameters of the Lower Limb in Young Non-osteoarthritic Population
1 other identifier
observational
100
1 country
1
Brief Summary
In the international literature there are only few publication about the normal biomechanical parameters of the lower limb examined prospectively in healthy population. The goal of our study to determine 15 anatomical and biomechanical parameters of the lower limb using 3D reconstruction based on upright, stereo radiographs in young, healthy volunteers.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Oct 2021
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 1, 2021
CompletedFirst Submitted
Initial submission to the registry
October 12, 2021
CompletedFirst Posted
Study publicly available on registry
November 4, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2022
CompletedMarch 23, 2023
March 1, 2023
3 months
October 12, 2021
March 21, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (15)
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Length of the femoral mechanical axis (femur length) - mm
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters, including: • Length of the tibial mechanical axis (tibia length) - mm
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • The length of the lower limb (limb length) - mm
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Femoral head diameter - mm
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Neck length (the distance between the centre of the femoral head and the proximal diaphyseal axis, when following the axis of the femoral neck) - mm
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Neck shaft angle, aka the collodiaphyseal angle (CD angle, the angle between the femoral neck axis and the proximal diaphysis axis) - degrees
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Femoral offset (the distance between the centre of the femoral head and the closest point of the femoral shaft axis) - mm
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Mechanical tibiofemoral angle (mTFA, the angle between the mechanical axis of the femur (which passes from the femoral head through the centre of the distal femur) and the mechanical axis of the tibia (from the centre of the proximal tibia to the middle of the ankle) in the frontal plane of knee (convention dictates that in the varus position angles are negative, and in valgus positive) - degrees
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Sagittal tibiofemoral angle (sTFA, the angle between the femural and tibial mechanical axis in the sagittal plane) - degrees
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Femoral mechanical axis-femoral shaft angle (FM-FS, the angle between the mechanical and anatomical axis of the femur in the frontal plane of the knee) - degrees
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Femur mechanical angle (FMA, the angle between the femoral mechanical axis and the tangent of the femoral condyles medially) - degrees
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Tibial mechanical angle (TMA, the angle between tibial mechanical axis and the tangent of the tibia plateau medially) - degrees
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Femoral torsion (the angle between the femoral neck axis and the posterior condylar line projected on a plane perpendicular to the mechanical axis of the femur) - degrees
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Tibial torsion (the angle between the transmalleolar and transcondylar axis projected on a plane perpendicular to the mechanical axis of the tibia) - degrees
6 months
3D reconstruction with 15 anatomical and biomechanical parameter of the lower limb
Based on the stereo radiographs, SterEOS 3D reconstruction will be done. The SterEOS software calculates automatically 15 parameters including: • Femorotibial rotation (the angle between the posterior condylar line of the femur and tibia) - degrees
6 months
Study Arms (1)
Study group
18-30 year-old, healthy volunteers * Age: 18-30 years * BMI: \<30 * No previous surgery on lower limb or spine * No known developmental disorder * Without any orthopaedic complaint
Interventions
EOS Micro Dose imaging will be done. SterEOS 3D recontruction of the lower limb and pelvis will be performed.
Eligibility Criteria
Young, healthy volunteers
You may qualify if:
- Age: 18-30 years
- BMI: \< 30
- Without orthopaedic complaint
You may not qualify if:
- Previous surgery on lower limb or spine
- Developmental disorder in the patients history
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Ádám Schlégl
Pécs, Baranya, 7632, Hungary
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Adam T Schlegl, M.D., Ph.D.
University of Pecs Medical School, Department of Orthopaedics
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 12, 2021
First Posted
November 4, 2021
Study Start
October 1, 2021
Primary Completion
December 31, 2021
Study Completion
December 31, 2022
Last Updated
March 23, 2023
Record last verified: 2023-03