Biomechanical Investigation of Symptomatic FAI and Two Groups of Asymptomatic Controls

Summary

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.

Conditions

• Femoroacetabular Impingement

Interventions

DIAGNOSTIC_TEST

EOS

Every 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).

DIAGNOSTIC_TEST

3D motion lab analysis

A 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)

Sponsors & Collaborators

• Universitaire Ziekenhuizen KU Leuven

  lead OTHER

Principal Investigators

• Stijn Ghijselings, MD · Universitaire Ziekenhuizen KU Leuven

Study Design

Allocation

NON_RANDOMIZED

Purpose

DIAGNOSTIC

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

21 Years

Max Age

35 Years

Sex

MALE

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2022-07-28

Primary Completion

2026-12-31

Completion

2026-12-31

Countries

• Belgium

Study Locations