The “Sleeper” plate: A technical note

Context: A tension band plate (TBP) for guided growth of angular deformity is typically removed after the deformity is corrected to prevent overcorrection. After TBP removal, rebound deformity may occur, necessitating reinsertion of a new TBP. Aims: This study aims to describe a minimally invasive t...

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Main Authors: Muayad Kadhim, Ahmed I Hammouda, John E Herzenberg
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2019-01-01
Series:Journal of Limb Lengthening & Reconstruction
Subjects:
Online Access:http://www.jlimblengthrecon.org/article.asp?issn=2455-3719;year=2019;volume=5;issue=1;spage=27;epage=32;aulast=Kadhim
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author Muayad Kadhim
Ahmed I Hammouda
John E Herzenberg
author_facet Muayad Kadhim
Ahmed I Hammouda
John E Herzenberg
author_sort Muayad Kadhim
collection DOAJ
description Context: A tension band plate (TBP) for guided growth of angular deformity is typically removed after the deformity is corrected to prevent overcorrection. After TBP removal, rebound deformity may occur, necessitating reinsertion of a new TBP. Aims: This study aims to describe a minimally invasive technique for partial removal of TBP to deactivate the TBP when correction is achieved. The technique also allows minimally invasive reactivation of the construct when desired. Settings and Design: This is retrospective case series study. Subjects and Methods: The surgery consists of removing the metaphyseal screw only and keeping the plate and the epiphyseal screw. The procedure is done through a 1-cm incision with fluoroscopy. The metaphyseal edge of the plate is elevated off the bone to break the seal between it and the bone, to prevent tethering. Bone wax is injected in the empty plate hole to prevent bone ingrowth, as this could also cause re-tethering. In case of a subsequent rebound deformity, the metaphyseal screw may be re-inserted percutaneously to reactivate (“wake-up”) the “sleeper plate”. Statistical Analysis Used: Descriptive analysis. Results: The sleeper plate technique was done in eight patients (three males and five females). Four patients had genu valgum and four had genu varum. Mean age at surgery was 11 years (7–14 years). Metaphyseal screw removal was done in a mean period of 14 months (range from 7.4 to 22 months) after the index procedure. Rebound of the deformity happened in three patients and required plate reactivation by reinsertion of the metaphyseal screw. Conclusion: The sleeper plate technique is a minimally invasive procedure and can be an alternative to the removal of the whole TBP construct if the patient is skeletally immature with a risk of deformity rebound. Level of Evidence: IV
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spelling doaj.art-385098bf3e9e45dfa9639938d13c20242022-12-22T02:27:32ZengWolters Kluwer Medknow PublicationsJournal of Limb Lengthening & Reconstruction2455-37192455-37192019-01-0151273210.4103/jllr.jllr_2_19The “Sleeper” plate: A technical noteMuayad KadhimAhmed I HammoudaJohn E HerzenbergContext: A tension band plate (TBP) for guided growth of angular deformity is typically removed after the deformity is corrected to prevent overcorrection. After TBP removal, rebound deformity may occur, necessitating reinsertion of a new TBP. Aims: This study aims to describe a minimally invasive technique for partial removal of TBP to deactivate the TBP when correction is achieved. The technique also allows minimally invasive reactivation of the construct when desired. Settings and Design: This is retrospective case series study. Subjects and Methods: The surgery consists of removing the metaphyseal screw only and keeping the plate and the epiphyseal screw. The procedure is done through a 1-cm incision with fluoroscopy. The metaphyseal edge of the plate is elevated off the bone to break the seal between it and the bone, to prevent tethering. Bone wax is injected in the empty plate hole to prevent bone ingrowth, as this could also cause re-tethering. In case of a subsequent rebound deformity, the metaphyseal screw may be re-inserted percutaneously to reactivate (“wake-up”) the “sleeper plate”. Statistical Analysis Used: Descriptive analysis. Results: The sleeper plate technique was done in eight patients (three males and five females). Four patients had genu valgum and four had genu varum. Mean age at surgery was 11 years (7–14 years). Metaphyseal screw removal was done in a mean period of 14 months (range from 7.4 to 22 months) after the index procedure. Rebound of the deformity happened in three patients and required plate reactivation by reinsertion of the metaphyseal screw. Conclusion: The sleeper plate technique is a minimally invasive procedure and can be an alternative to the removal of the whole TBP construct if the patient is skeletally immature with a risk of deformity rebound. Level of Evidence: IVhttp://www.jlimblengthrecon.org/article.asp?issn=2455-3719;year=2019;volume=5;issue=1;spage=27;epage=32;aulast=KadhimBone waxgrowth modulationguided growthhemiepiphysiodesissleeper platetension band platestension band plate
spellingShingle Muayad Kadhim
Ahmed I Hammouda
John E Herzenberg
The “Sleeper” plate: A technical note
Journal of Limb Lengthening & Reconstruction
Bone wax
growth modulation
guided growth
hemiepiphysiodesis
sleeper plate
tension band plates
tension band plate
title The “Sleeper” plate: A technical note
title_full The “Sleeper” plate: A technical note
title_fullStr The “Sleeper” plate: A technical note
title_full_unstemmed The “Sleeper” plate: A technical note
title_short The “Sleeper” plate: A technical note
title_sort sleeper plate a technical note
topic Bone wax
growth modulation
guided growth
hemiepiphysiodesis
sleeper plate
tension band plates
tension band plate
url http://www.jlimblengthrecon.org/article.asp?issn=2455-3719;year=2019;volume=5;issue=1;spage=27;epage=32;aulast=Kadhim
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