About this trial
This is a randomized control trial of pediatric patients with acute lateral ankle avulsion fractures. Patients will be randomized into two groups: Standard of care treatment which includes booting with early range of motion and gradual weening from the boot and a Test treatment which includes a 6 week short-let cast. The purpose of the study is to test whether prolonged immobilization (casting) can help prevent the formation of a subfibular ossicle. The study consists of two patient visits.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Ages 5-12 at time of enrollment
Diagnosis of first-time lateral ankle injury and an avulsion fracture visible on imaging who can be enrolled within 14 days of injury
Patient and parent/legal guardian must speak English or Spanish
Disqualifiers
Previous ipsilateral ankle surgery
Pre-existing musculoskeletal disease
If patient has been casted prior to confirmation of avulsion fracture on imaging
Developmental delay
Trial design
Parallel
Treatments tested in this trial
Prolonged Immobilization (Casting)
Procedure/SurgeryPatients will be treated with a non-weightbearing short-leg cast for 6 weeks to promote avulsion fracture healing. This will be followed physical therapy, and a gradual return to activity.
Standard of Care (SOC)
Procedure/SurgeryPatients will receive brief immobilization (boot) as needed, followed by early range of motion exercises. Physical therapy and a return-to-activity plan will be implemented as symptoms allow.
Treatment groups
Trial outcomes
Primary outcomes
Bony Union
Ultrasound and radiographic images will be used to assess bony union. The images will be reviewed by a physician with expertise in assessing ultrasound to visualize the presence of bony bridging across the fracture site. This will be visualized as a hyperechoic line connecting the fracture piece to the donor bone.
Secondary outcomes
Hospital for Special Surgery Pediatric Functional Activity Bried Scale (HSS Pedi-FABS)
PROMIS Physical Activity
PROMIS Mobility
PROMIS Anxiety
Sponsors and contacts
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