Cam morphology Femoroacetabular Impingement (FAI)
Conditions
Interventions
None listed
Sponsors
McMaster university hospital
Eligibility
Age
12 Years to 17 Years
Inclusion criteria
Inclusion criteria: Age: 12-14 years at baseline Sex: 10 boys and 10 girls Activity level: 10 highly active children and 10 sendentary controls
Exclusion criteria
Exclusion criteria: Known hip pathology Previous hip surgery Contra-indication to undergo MRI
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary study outcome is the incidence of radiographic cam morphology between the highly active (including sports) exposure subjects and the inactive/less active control subjects at 2 years, as determined by the dedicated MRI of the hip. We will define activity levels using the HAES questionnaire and GPS tracking. The HAES quantifies the duration, in hours, of 4 levels of activity ranging from very inactive (lying down, napping), somewhat inactive (sitting, reading, watching television, playing video games), somewhat active (walking, light chores), to very active (running, bicycling, activities leading to sweating or breathing hard) over a complete waking day. The HAES is designed for administration in the paediatric population and has been shown to be both a valid and reliable form of quantifying levels of physical activity. The exposure group (highly active, athletes) will include those that score *very active* on the HAES and report prior sporting activity. The control group will include those that score from *very inactive* to *somewhat active* and who report minimal to no prior sporting activity. A sensitivity analysis will evaluate cam morphology incidence (from baseline to 2 years) across all 4 possible scoring categories. Adult and child versions of the HAES questionnaire will be administered to ensure accuracy of reporting from subjects Radiographic signs of FAI are common in asymptomatic individuals and will therefore be interpreted along with a detailed history and physical examination. Symptomatic FAI in children and adolescents is typically characterized by anterior hip pain aggravated by flexion activities, decreased hip internal rotation, and a positive impingement sign. For the purposes of this study, physical examination will include range of motion measurements documented in the supine position by the blinded local investigator or a research assistant (using a goniometer), as well as response of provocative hip tes | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcomes include hip function and HRQL between subjects with a diagnosed hip deformity and no deformity at 2 years, as determined by the HOS and PedsQL questionnaires. The HOS is a self-administered hip score that was designed to capture hip function. The HOS has been shown to have the greatest clinimetric evidence for use in patients with FAI or labral tears. The HOS was developed for young adults and has been shown to be appropriate for use in adolescents with hip impingement. It has been validated in the Dutch language. The PedsQL is a validated and responsive measure of HRQL in children and adolescents, and can be used with healthy children and those with acute and chronic health conditions. The PedsQL was specifically designed to measure the core health dimensions outlined by the World Health Organization (physical, emotional, and social functioning), which will ensure adaptability in the global study. Adult and child versions of the HOS and PedsQL will be utilized to ensure accuracy of reporting. | — |
Countries
Netherlands
Outcome results
None listed