Femoroacetabular impingement (FAI) is an orthopaedic condition that is primarily characterized by the presence of anatomic bony abnormalities in the femoral head and/or the acetabulum resulting in an abnormal contact between the two during hip motion, especially in positions of increased hip flexion and rotation, ultimately leading to hip pain. Unfortunately, a FAI diagnosis is frequently only made once symptoms have become severe to an extent that they limit everyday life activities. Moreover, another important aspect that has been consistently overlooked in past FAI movement studies is the influence muscle strength and activation can have on movement pattern and symptom presentation. The diagnosis and management of FAI needs to be addressed through a more wholesome investigation of the biomechanical influence on the manifestation of symptoms.
This project aims to further unravel the link between spinopelvic anatomy, its biomechanical contribution to femoro-pelvic motion and the manifestation of femoroacetabular impingement in adult male population. By, for the first time, integrating three-dimensional (3D) instrumented motion analysis with state-of-the-art full-body biplanar X-ray imaging (EOS imaging, Paris France), we will more specifically investigate the presence of an association between spinopelvic kinematics and the link to symptomatic FAI morphology, as well as investigate the presence of differences in these measures between symptomatic and asymptomatic subjects with comparable femoral morphology.
None
All participants will be males aged between 21 and 35 years old.
For symptomatic CAM-FAI patients
The presence of CAM-FAI morphology at the head-neck junction of the femur
Alpha angle >60
Parallel
EOS
Diagnostic testEvery subject in this study will undergo a radiographic analysis of the hip and spine using a low-dose, full-body biplanar X-ray acquisition (in standing, sitting and squatting position, EOS imaging).
3D motion lab analysis
Diagnostic testA hip-specific 3D motion analysis will be performed. The 3D motion protocol will be divided into 2 main sections. First section: Consist of movements categorized within the activities of daily living (walking at self-selected speed, uphill walking, standardized deep squat and non-standardized deep squat) Second section: Consists of movements that are categorized within athletic training and have been specifically chosen to induce large hip ranges of motion (Sumo squats, dead lifts, forward lunges, running uphill and downhill) Each movements will be repeated 6 times. Three times with the dominant foot/opposite leg on the force plate to collect kinetic data. All data will be captured using two 10-15 camera 3D motion capture systems and one capturing an instrumented treadmill (M-gait)
The presence of CAM morphology in combination with symptoms
1. = yes morphology, yes symptoms; 2. = yes morphology, no symptoms; 3. = no morphology, no symptoms
The Copenhagen Hip and Groin Outcome Score (HAGOS)
Consists of six separate subscales assessing Pain, Symptoms, Physical function in daily living, Physical function in Sport and Recreation, Participation in Physical Activities and hip and/or groin-related Quality of Life (QOL).
Radiographic spinopelvic parameters
Radiographic spinopelvic parameters will be collected via a radiographic analysis of the hip and spine using a low-dose, full-body biplanar X-ray acquisition (in standing, sitting and squatting position) as well as a classic x-ray image in 45° Dunn view of both hips.
3D motion analysis parameters
3D motion analysis parameters will be collected via a hipspecific 3D motion analysis where different movements will be performed on the force plate.
Click on the lead sponsor to view all of their trials.
