The Faroese Knee Cohort: Etiology and Long-term Implications of Trochlear Dysplasia and Patellar Dislocations.
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age15-20
SponsorHvidovre University Hospital
About this trial
The investigators intend to establish a national cohort including all persons in the ages from 15-20 years old with patellar instability (PI) or a prior knee injury (ACL-ruptur or meniscus damage) . The cohort will be nicknamed "The Faroese Knee Cohort".
The overall aim is to investigate two groups.
1. The patella instability group, in which we intend to investigate the following.
* Prevalence of patellar dislocation and trochlear dysplasia in the Faroe Islands. * Risk factors for patellar dislocations- * Heredity of trochlear dysplasia. * If there is a specific gene responsible for the development of trochlear dysplasia. * The development of retropatellar artrhosis, its onset and its impact on quality of life and function, 2. Knee injury group (ACL-ruptur or meniscus injury)
* The prevalence of ACL-rupture and/or meniscus injury in this specific group in the Faroe Islands. * The impact on quality of life and function.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Age between 15-20 years at the start of patient enrolment.
The feeling of patellar instability, or patellar dislocation/near-dislocation.
The person has to be from the Faroe Islands.
All persons under the age of 18 must get written consent by their parents
Disqualifiers
Terminal illness
Mental disabilities and illness, meaning that the patient cannot independently answer the PROM´s and cooperate to the clinical investigation.
Trial population
All patients must either live or be born in the Faroe Islands, as this is a national cohort study. They will be invited to join the study if the live up to the inclusion criteria.
Trial design
Design model
Cohort
Time perspective
Prospective
Treatments tested in this trial
No intervention is made
Other interventionNo intervention is made. This i an observational study.
Treatment groups
100 Participants
are divided into 3 treatment groupsGroup A: Patellar dislocation, but no trochlear dysplasia1 intervention
Group B: Patiens with patellar dislocation and trochlear dysplasia1 intervention
Group C: Patients with other knee injury1 intervention
Trial outcomes
Primary outcomes
1
Severity of patellar dislocations
The severity of PD defined by number of PD or near-dislocations the patient experience (daily, weekly, monthly, yearly).
Time frame
1 yearSecondary outcomes
1
Risk factors for patellar dislocation 1
The investigators will investigate if there is an correlation between the amount of patellar dislocations and the following measurements Caton-Deschamps index: Measuring in the ratio from 0-2. (normal 0.6-1.3, patella alta: \> 1.3, Patella Baja: \<0,6)
Time frame
1 year2
Risk factors for patellar dislocation 2
The investigators will investigate if there is an correlation between the amount of patellar dislocations and the following measurements: Lateral Trochlear Inclination: Measured in degrees, the range from 0-20 degrees. (\< 11 degrees indicates trochlear dysplasia)
Time frame
1 year3
Risk factors for patellar dislocation 3
The investigators will investigate if there is an correlation between the amount of patellar dislocations and the following measurements: Trochlear Facet Asymmetry: Measured in the ratio from 0-1. ( \< 0.4 indicates trochlear dysplasia)
Time frame
1 year4
Risk factors for patellar dislocation 4
The investigators will investigate if there is an correlation between the amount of patellar dislocations and the following measurements: Trochlear Depth: Measured in centimeters in the range from 0-3 cm. (\< 3 cm is abnormal)
Time frame
1 yearSponsors and contacts
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Source ClinicalTrials.gov