RSA Study on the Behaviour of the Growth Plate During and After Temporary Hemi-epiphysiodesis and Epiphysiodesis

University of Oslo (UIO)

Status: Enrolling

Conditions: Deformity of Limb; Anisomelia

Treatments: Other: Temporary hemi-epiphysiodesis or epiphysiodesis

Study type: Observational

Funder types: Other

Identifiers

NCT04235517

18/02287

Details and patient eligibility

About

By using radiostereometric analysis (RSA) we will be able to study growth during and after temporary epiphysiodesis and with great accuracy be able to detect asymmetric growth following this procedure.

By using the same method we also want to analyse patients with axial deviations operated with guided growth (tension band plating) to study the growth during and after the procedure and be able to set the correct timing for removal of the implant.

Full description

The RSA method consists of implantation of small tantalum beads on either side of the physis during surgery on the the physis. Later analysis of the RSA Pictures with the RSA-method will give us an microscopically accurate measure of the growth in three planes.

Enrollment: 10 estimated patients

Sex: All

Ages: 3 to 16 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Children with idiopathic axial deviations in the lower extremities
• Children with limb length discrepancys where timing of epiphysiodesis is difficult because of a big discrepancy in skeletal age and chronological age

Exclusion criteria

• Children with axial deviations and pathological physis

Trial design

10 participants in 2 patient groups

Axial deviations in children

Description:

Children with axial deviations in the lower extremity treated with guided growth

Treatment:

Other: Temporary hemi-epiphysiodesis or epiphysiodesis

Limb length discrepancy in children

Description:

Children with limb length discrepancy treated with temporary epiphysiodesis

Treatment:

Other: Temporary hemi-epiphysiodesis or epiphysiodesis