Remote-controlled internal lengthening plate for distraction osteogenesis in pediatric patients.

Abstract:

OBJECTIVES:Limb lengthening by distraction osteogenesis is a technique widely used to treat limb length discrepancy resulting from trauma, congenital limb defects and long bone non-union. For decades, patients have resorted to the Ilizarov apparatus, prone to pin tract infections and scarring. Although implantable lengthening nails have reduced the incidence of complications, they are not applicable in pediatric patients with open growth plates. The aim of this project is to design a remote-controlled internal lengthening device suitable for implantation in children. METHODS:The proposed device has the form of an internal remote-controlled telescopic lengthening plate, screwed to the lateral side of the bone with locking screws. This is appropriate for use with pediatric patients. It has been tested on an experimental bench which has the form of a vertically sliding platform, on which were stacked weights simulating soft-tissue resistance forces. RESULTS:This internal lengthening plate generated distraction forces of up to 735 N on wooden and synthetic bones (SawbonesTM). Furthermore, it maintained a constant distraction speed over the course of the procedure for a given weight. CONCLUSIONS:This device represents a major advancement in the field of pediatric limb-lengthening, addressing a demographic gap left open by current implantable devices.

journal_name

Expert Rev Med Devices

authors

Gaudreau J,Mekhail M,Hamdy R,Villemure I

doi

10.1080/17434440.2019.1599283

subject

Has Abstract

pub_date

2019-04-01 00:00:00

pages

333-339

issue

4

eissn

1743-4440

issn

1745-2422

journal_volume

16

pub_type

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