Metatarsus Varus
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Children of both sexes; Age between 4 and 10 years; Present in-toeing pattern due to femoral anteversion; absence of neuromotor or behavioral alteration; gait angle less than -3° and internal rotation of the hip greater than 70°; do not present in-toeing due to internal torsion of the tibia and metatarsus adductus or excessive deformity indicating surgery (over 80° of internal rotation); do not present a history of surgery; fractures in limbs and deformities that affect gait (for example, clubfoot, dislocation of the hip joint)
Exclusion criteria
Exclusion criteria: Low adherence to daily use of the orthosis (less than 4 hours reported); presence of allergies or irritability when using the orthosis; orthopedic surgeries on lower limbs involving the hip; possible fractures in the lower limbs; interruption in the use of the orthosis for more than 15 total days or 7 calendar days; withdrawals
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To assess the angle of internal rotation of the hip, which will be measured using a motion analysis system using precision infrared cameras (Vicon Vero System). Therefore, reflective markers should be positioned on the acromion, anterior superior iliac spine (ASIS), greater trochanter, head of the fibula, lateral malleolus and head of the fifth metatarsal. The data will be recorded on electronic media and later analyzed using the system's standard software (Vicon Nexus 2), obtaining: 1) Average angle and range of motion of the hip, knee and ankle and 2) Temporal sequence of contact between the forefoot and the heel, calculated based on the time course of the position of the markers on the malleolus and fifth metatarsal | — |
Secondary
| Measure | Time frame |
|---|---|
| For each participant, the mean values ??of the kinematic gait parameters will also be obtained via the same system: speed (m/s), cadence (steps/min), step length (m), gait cycle duration (s) and pelvic tilts. These data will allow comparison between children in the experimental and control groups, as well as in the experimental group before and after the introduction of the orthosis | — |
Countries
Brazil
Contacts
Universidade Federal do Amazonas