New Bone Grafting Technique in Paediatric Foot Surgery. Validation of Outcome Measures

NCT ID: NCT01770574

Last Updated: 2019-10-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

12 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-02-28

Study Completion Date

2016-12-10

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to determine whether structural calcium ceramic bone graft substitute (ReproBone™) is non-inferior compared to autologous tricortical iliac crest bone graft in lateral calcaneal lengthening osteotomies in pediatric patients and reduces postoperative pain.

To groups of patients (age 5-16) will be compared. One group randomized to autologous bone graft and the other group randomized to calcium ceramic.

The evaluation will be based on radiostereometric analysis, pedobarography, Patient reported outcome assessment (Oxford Ankle Foot Questionnaire), and pain (measured by visual analog scale and numerical range scale).

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Study C: HA-β TCP (ReproBone™) vs. autologous tricortical iliac crest bone graft in a calcaneal lengthening osteotomy in children with pes planovalgus. A clinical randomized controlled non-inferiority study with 12 months of follow-up.

Purpose. To investigate the clinical and radiographic findings of a calcaneal lengthening osteotomy by comparing autologous bonegraft and HA-β-TCP graft in a group of children with hindfoot valgus deformities. The primary outcome measure the stability of the osteotomy measured by migrations in the x-translation by RSA.

Design. Prospective, randomized controlled non-inferiority study.

Randomization: Children who fulfill the criteria for inclusion together with their parents/guardian receive information about the project. The patients are randomized to respectively HA-ß-TCP and iliac crest bone graft.

Surgical procedure: Calcaneal lengthening osteotomy is performed between the anterior and middle facet of the subtalar joint. The corticalis of the calcaneus is bilaterally cut through. The planovalgus deformity is corrected and with a graft matching the wedged osteotomy is inserted. Tantalum balls are inserted into calcaneus on each side of the osteotomy and in cuboideum. Postoperative pain treatment consist of a tibial nerve catheter which is used the first 24 hours. Patients in whom graft is harvested from the iliac crest get local infiltration analgesics accordingly to a standardized procedure. The pain is registered by the use of a visual analog scale (VAS, NRS, faces scale) a 3, 8 and 12 hours postoperative. The amounts of used analgesics are registered. The stability of the osteotomy is assessed by radiostereometric assay (RSA) at the following time points: Baseline (first/second postoperative day) after 6 weeks, 8 weeks, 6 months and 12 months.

Power and significance: The primary parameter is stability of the osteotomy, measured as x-translations by the RSA software. We used continuous non-inferiority sample size calculations. With alpha 0.05 and power 0.9, non-inferiority limit 2 mm and sd 1.5 mm we estimated the sample size to 10 patients in each group. To secure against drop-out, we plan to include 15 patients in each group.

For ethical considerations an interim analysis was planned when 10 patients completed 6 months RSA follow-up. Primary outcome was compression of the osteotomy. We used a 99.8% confidence interval.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Pes Planovalgus

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

ReproBone

calcaneal lengthening

Group Type EXPERIMENTAL

ReproBone

Intervention Type DEVICE

Artificial bone graft is inserted as a wedge in the calcaneal lengthening osteotomy

calcaneal lengthening

Intervention Type PROCEDURE

Autologous bone graft is harvested from the iliac crest and inserted as a wedge in the calcaneal lengthening osteotomy

Autologous bone graft

calcaneal lengthening

Group Type ACTIVE_COMPARATOR

calcaneal lengthening

Intervention Type PROCEDURE

Autologous bone graft is harvested from the iliac crest and inserted as a wedge in the calcaneal lengthening osteotomy

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

ReproBone

Artificial bone graft is inserted as a wedge in the calcaneal lengthening osteotomy

Intervention Type DEVICE

calcaneal lengthening

Autologous bone graft is harvested from the iliac crest and inserted as a wedge in the calcaneal lengthening osteotomy

Intervention Type PROCEDURE

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Hydroxy-apatite-tricalcium-phosphate Autologous bone graft

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Children aged between 5-16 years with symptomatic planovalgus deformity admitted to the Department of Children's Orthopaedics, Aarhus University Hospital during the period 2012 to 2016. The surgical procedure is performed in about 10 children a year.

Pain and/or callosities. Informed written consent from the child custody/guardianship. Ambulatory function No severe cognitive deficits

Exclusion Criteria

Reoperation will exclude patients from further follow-up
Minimum Eligible Age

5 Years

Maximum Eligible Age

16 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Ceramisys Ltd

INDUSTRY

Sponsor Role collaborator

University of Aarhus

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Bjarne Møller-Madsen, DMSc, Prof

Role: STUDY_DIRECTOR

Department of Children's Orthopaedics Aarhus University Hospital

Polina Martinkevich, PhD-student

Role: PRINCIPAL_INVESTIGATOR

Department of Children's Orthopaedics Aarhus University Hospital

Ole Rahbek, Assoc prof PhD MD

Role: STUDY_CHAIR

Department of Children's Orthopaedics, Aarhus University Hospital

Martin Gottliebsen, MD PhD-stud

Role: STUDY_CHAIR

Department of Children's Orthopaedics, Aarhus University Hospital

Maiken Stilling, MD, PhD

Role: STUDY_CHAIR

Department of Orthopaedics, Aarhus University Hospital

Line Kjeldgaard Pedersen, MD, PhD

Role: STUDY_CHAIR

Department of Children's Orthopaedics, Aarhus University Hospital

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Aarhus University Hospital

Aarhus, , Denmark

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Denmark

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

Interventional

Identifier Type: OTHER

Identifier Source: secondary_id

1-10-72-250-12

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Surgery of the Pilon Fractures
NCT03367169 TERMINATED NA