Use of the Bioabsorbable Activa IM-Nail™ in Pediatric Diaphyseal Forearm Fractures

Not Applicable

Recruiting

• Conditions: Child, Only; Fracture Healing; Implant Complication; Forearm Fracture; Fracture Fixation, Intramedullary
• Interventions: Device: Activa IM-Nail

• Registration Number: NCT04941612
• Lead Sponsor: Children's Fractures Interest Group, Denmark

Brief Summary

Background

Pediatric diaphyseal forearm fractures are common and one of the most frequent reasons for orthopedic care. Fractures in need of surgery are often treated with metal Elastic Stable Intramedullary Nails (ESIN). Nail removal after 6-12 months is generally advocated. Surgical hardware removal has few complications; however, it is a substantial burden on the child, the family and healthcare economy. Bioabsorbable Intramedullary Nails (BIN) have been developed for the same indications as metal ESIN. The use of bioabsorbable implants would deem hardware removal unnecessary and relieve the child of further surgery and reduce healthcare costs.

Methods

The investigators aim to recruit all children in the catchment area of Herlev and Gentofte University Hospital (Copenhagen, Denmark) with acute unstable diaphyseal forearm fractures. Participants will be operated with BIN and followed consecutively for 2 years with interim analysis of data after 6 months. The investigators will report radiological healing using the Radiographic Union Score (RUS) 3 months after surgery together with any adverse events during follow-up.

Discussion

This study will provide important preliminary data and asses the feasibility of using the bioabsorbable Activa IM-Nail™ in pediatric diaphyseal forearm fractures. This study is a pilot study for initiating an RCT comparing BIN to metal ESIN hypothesizing that BIN is not an inferior treatment.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-05-24
• Study Start: 2021-05-25
• Status Verified: 2021-06
• Study First Submitted QC: 2021-06-23
• Last Update Submitted: 2021-06-23
• Study First Posted: 2021-06-28
• Last Update Posted: 2021-06-28
• Primary Completion: 2023-08-31
• Study Completion: 2025-05-25

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• Acute traumatic diaphyseal forearm fracture of the radius, ulna or both
• Fractures need to be complete (not unicortical or green stick)
• Displaced more than 50% of bone width or angulated more than 10° in any plane or irreducible or unstable after reduction

Exclusion Criteria

We exclude patients

• with fractures that are well managed conservatively (undisplaced or minimally displaced)
• with previous ipsilateral forearm fracture
• with fractures unsuited for intramedullary nailing (e.g. multifragmentary, metaphyseal or epiphyseal)
• with fractures with ipsilateral wrist or elbow involvement (e.g. Monteggia or Galeazzi variants)
• unable to participate in follow-up
• with existing bone pathology (e.g. tumor, osteogenesis imperfecta, degenerative disease)
• in whom internal fixation is otherwise contraindicated (e.g. active or potential infection)

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Activa IM-Nail	Activa IM-Nail	Activa IM-Nail

Primary Outcome Measures

Name	Time	Method
Radiographic Union Score (RUS)	3 months	RUS is a score derived from assessing AP and lateral radiographs. Each bone cortex (anterior, posterior, medial and lateral) is assigned a score of 1 to 3. A cortex with a visible fracture line and no callus is given a score of 1, a cortex with callus but a visible fracture line is scored as 2 and a cortex with bridging callus and no visible fracture line is scored as 3. Scores are added to give a minimum score of 4 (definitely not healed) and a maximum of 12 (definitely healed). 12 is best.

Secondary Outcome Measures

Name	Time	Method
Faces Pain Scale - Revised (FPS-R)	3 months	To measure the outcome of pain in children below 8 years of age. Pain evaluated by the child selecting 1 of 6 faces that represents their feeling of pain. Faces are scored 0, 2, 4, 6, 8 or 10. Scale 0-10 with 2 point increments. 0 = no pain, 10= very much pain. 0 is best.
Bilateral elbow and forearm range of motion	3 months	Measured in degrees by goniometer
Visual Analogue Scale (VAS)	3 months	Pain evaluated by the child putting a mark on a 10 cm long line. Most left=no pain, most right=worst possible pain. Distance from most left to the child's mark is measured with a ruler. 1 mm = 1 point. Value is given with 1 decimal, e.g. 64 mm = 6,4 points.; Scale 0.0-10.0. With 0 = no pain, 10= worst possible pain. 0 is best.

Trial Locations

Locations (1)

Herlev and Gentofte University Hospital; 🇩🇰 Herlev, Capital Region, Denmark