Prospective Evaluation of Sport Activity and the Development of Femoroacetabular Impingement in the Adolescent Hip
PREVIEW
1 other identifier
observational
201
3 countries
4
Brief Summary
Femoroacetabular impingement (FAI) is a condition of the hip where there is a mis-fit between the femoral head (ball) and hip acetabulum (socket). The abnormalities on the hip bones collide or "impinge" during movements such as hip flexion and rotation. Typically, patients with this condition are young adults who present with hip pain, loss of hip function, and in many cases, osteoarthritis later in life. The rate of diagnoses of FAI has dramatically risen across all age groups, but it has been especially notable within adolescent populations. There has been a corresponding increase in the number of surgeries performed on younger and younger hips to treat pain and loss of function due to this condition. Preliminary small-scale research has hypothesized that increased activity, such as sport specialization (i.e. playing only one sport for most of the year) at an early age when the hip is still developing, may be the cause. In the past 20 years, sport injuries among children have dramatically increased, where close to 45 million young athletes participate in organized sports annually in Canada and the US alone. There is a current trend among coaches and parents to have children focus on one sport with the thought that this dedication will allow them to reach an elite level. We are proposing the first international, longitudinal cohort study to determine the effect of sport specialization on the development of FAI during the critical phase of hip development (i.e. between the ages of 12-14 years). Volunteer participants will be recruited across Canada and internationally and will be evaluated clinically and radiographically (i.e. using MRI) over 2 years. This study will not only prospectively evaluate the role of sport activity the development of FAI, but also inform preventative training protocols to potentially reduce its incidence among adolescents, and later as adults, as well as identify parameters to detect hips that are at risk for developing FAI.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Oct 2017
Longer than P75 for all trials
4 active sites
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 18, 2017
CompletedFirst Submitted
Initial submission to the registry
March 25, 2019
CompletedFirst Posted
Study publicly available on registry
March 27, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedNovember 21, 2025
November 1, 2024
7.8 years
March 25, 2019
November 20, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Incidence of radiographic FAI
The primary outcome is the incidence of radiographic FAI between groups at 2 years, as determined by the dedicated MRI of the hip. We will identify both symptomatic and asymptomatic cases, where asymptomatic FAI can become symptomatic in young adulthood, and/or could be associated with idiopathic osteoarthritis later in life.
2 years
Secondary Outcomes (2)
Hip function
2 years
Health-related quality of life
2 years
Study Arms (2)
Sport specialists, MVPA
AOSSM Criteria: 1. Participation in intensive training and/or competition in organized sports greater than 8 months per year (essentially year round) 2. Participation in 1 sport to the exclusion of participation in other sports (limited free play overall) 3. Involving prepubertal (seventh grade or roughly age 12 years) children. AND Activity Tracker Criteria: Greater than 180 accumulated minutes of moderate-to-vigorous physical activity (MVPA) during participation in one sport type across one week of activity tracking \- Meets these criteria within either one or both years of follow-up
Non-sport specialist, any activity level
AOSSM Criteria: 1. Participation in more than 1 sport at any physical activity level OR 2. Participation in none or low training and/or competition in organized sports for any period of time. 3. Involving prepubertal children. AND Activity Tracker Criteria: Greater than or less than 180 accumulated minutes of MVPA across one week of activity tracking \- Meets these criteria during both years of follow-up
Eligibility Criteria
The study population will be comprised of adolescents aged 12-14 with no prior or ongoing hip comorbidities, and consent to receiving MRI scans at baseline and 2 years.
You may qualify if:
- asymptomatic males and females between the ages of 12-14 years
- ability to speak, understand, and read the language of the clinical site
- provision of informed child assent (if applicable) and parental consent.
You may not qualify if:
- hip is mature (i.e. closed physes) based on the baseline MRI scan
- hip complaints or pain in the hip
- previous trauma to the hip
- previous surgery on the hip
- significant medical co-morbidities (requiring daily assistance for ADLs)
- history of or ongoing paediatric hip disease (Legg-Calve-Perthes; slipped capital femoral epiphysis, hip dysplasia)
- participants that have contraindications and/or are unwilling to undergo an MRI (e.g. claustrophobia)
- participants who will likely have problems, in the judgment of the investigator, with maintaining follow-up
- any other reasons the investigator feels is relevant for excluding the subject.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- McMaster Universitylead
- McMaster Surgical Associationcollaborator
- Arthroscopy Association of North Americacollaborator
- Conmedcollaborator
- Canadian Institutes of Health Research (CIHR)collaborator
Study Sites (4)
McMaster University
Hamilton, Ontario, L8N3Z5, Canada
Chu du Quebec
Québec, Quebec, G1J1Z4, Canada
Erasmus Medical Centre
Rotterdam, Netherlands
Kyungpook National University Hospital
Daegu, Gyeongsangbuk-do, 41944, South Korea
Related Publications (1)
Ohlin A, Simunovic N, Duong A, Ayeni OR; PREVIEW investigators. Protocol for a multicenter prospective cohort study evaluating sport activity and development of femoroacetabular impingement in the adolescent hip. BMC Musculoskelet Disord. 2020 Apr 11;21(1):221. doi: 10.1186/s12891-020-03220-6.
PMID: 32278355DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 25, 2019
First Posted
March 27, 2019
Study Start
October 18, 2017
Primary Completion
July 31, 2025
Study Completion
December 31, 2025
Last Updated
November 21, 2025
Record last verified: 2024-11
Data Sharing
- IPD Sharing
- Will not share