Surgical Corection of Congenital Proximal Radioulnar Synostosis Using Double Osteotomy Technique.

NCT07162233 | Not Yet Recruiting

• 1 other identifier: Soh-Med--25-8-4MS
• Study Type: interventional
• Target: 1
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of the present study is to asses and maintain derotation osteotomy for treating proximal radioulnar synostosis.

Conditions

Synostosis

Outcome Measures

Primary Outcomes (1)

• surgical derotation osteotomy utilizing Kirschner wires for the correction of congenital proximal radioulnar synostosis

  Proximal radio-ulnar synostosis is a skeletal malformation of the upper limb characterized by bony fusion at the proximal aspect of the radius and ulna. The proximal third is considered the most common site of the radio-ulnar synostosis. This deformity is found mainly in preschool-aged children (4:8 years old), The proximal radioulnar synostosis was first described by the Dutch anatomist Eduard Sandifort in 1793¹. The ideal treatment for congenital radioulnar synostosis aims to restore rotational function and prevents the recurrence of the bony bridges. we aim to do surgical osteotomy and correct the synostosis to restore the function of the upper limb and will be assessed by geniometry , clinical and functional outcomes .

  one year

Study Arms (1)

child 4 : 12 age with congenital radioulnar synostosis

EXPERIMENTAL

Assessment and maintenance of derotation osteotomy utilizing Kirschner wires for the correction of congenital proximal radioulnar synostosis

Procedure: derotation osteotomy utilizing Kirschner wires for the correction of congenital proximal radioulnar synostosis

Interventions

derotation osteotomy utilizing Kirschner wires for the correction of congenital proximal radioulnar synostosis PROCEDURE

The level of distal radial and proximal ulnar osteotomies is determined under C- arm. A k-wire is inserted in the outer border of the metaphysis of the radius distal to the level of the osteotomy, engaging and transfixing the radioulnar joint, small skin incision is made over the dorsal aspect of the forearm at the level of distal radial osteotomy, dissection of subcutaneous tissue with good exposure of the extensor tendons, transverse osteotomy is done using 2.5 mm drill bit and small sharp osteotme, allowing derotation movement of the distal part of the radius using the k-wire. Another small skin incision is made over the level of proximal ulnar osteotomy, dissection of subcutaneous tissue, another ulnar transverse osteotomy is done distal to the level of the proximal radioulnar synostosis. Derotaion of the forearm is adjusted in the functional position of the forearm in around (10˚:20˚supination), wound closure using absorbable Vicryl sutures. Above elbow cast is used f

child 4 : 12 age with congenital radioulnar synostosis

Eligibility Criteria

• Age: 4 Years - 12 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17)

You may qualify if:

• Patients with congenital idiopathic proximal radioulnar synostosis at the age of 4:12 years old.

You may not qualify if:

• patients with post traumatic proximal radioulnar synostosis, patients with distal ra-dioulnar synostosis and patients with neuromuscular disorder.

Sponsors & Collaborators

• Sohag University: lead

Study Sites (1)

Sohag Faculty of medicine

Sohag, Egypt

Location

MeSH Terms

Conditions

Synostosis

Condition Hierarchy (Ancestors)

Dysostoses; Bone Diseases, Developmental; Bone Diseases; Musculoskeletal Diseases; Musculoskeletal Abnormalities; Congenital Abnormalities; Congenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

• Marwan shams eldeen, MD orthopedeic

  Sohag University

  STUDY CHAIR

Central Study Contacts

mohammed refat mohammed Refaat Mohammed Hassan

CONTACT

+201010670744; mohamed_refaat_post@med.sohag.edu.eg

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assessment and maintenance of derotation osteotomy utilizing Kirschner wires for the correction of congenital proximal radioulnar synostosis

Model Details: The aim of the work is to asses and maintain derotation osteotomy for treating proximal radioulnar synostosis.

Study Record Dates

• First Submitted: August 30, 2025
• First Posted: September 9, 2025
• Study Start: September 1, 2025
• Primary Completion: January 1, 2026
• Study Completion: April 1, 2026
• Last Updated: September 9, 2025

Record last verified: 2025-08

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, CSR

Locations

EG (1)