Change in angle of depressed medial tibial plateau following extra-articular mechanical realignment surgery in children with Blount’s disease who presented late for treatment

Introduction: The aim of this study was to determine whether any change in degree of medial tibia plateau depression after extra-articular mechanical realignment surgery was observed in children with Blount’s disease who presented late for treatment in their adolescence and young adulthood. Methods:...

Full description

Saved in:
Bibliographic Details
Main Authors: Zi Hao Phang, Mohammed Albaker, Roshan Gunalan, Adrian Yen Xian Lee, Aik Saw
Format: Article
Language:English
Published: Wolters Kluwer – Medknow Publications 2024-05-01
Series:Singapore Medical Journal
Subjects:
Online Access:https://journals.lww.com/10.11622/smedj.2021189
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1823863748625956864
author Zi Hao Phang
Mohammed Albaker
Roshan Gunalan
Adrian Yen Xian Lee
Aik Saw
author_facet Zi Hao Phang
Mohammed Albaker
Roshan Gunalan
Adrian Yen Xian Lee
Aik Saw
author_sort Zi Hao Phang
collection DOAJ
description Introduction: The aim of this study was to determine whether any change in degree of medial tibia plateau depression after extra-articular mechanical realignment surgery was observed in children with Blount’s disease who presented late for treatment in their adolescence and young adulthood. Methods: We retrospectively reviewed the radiographic parameters of 22 patients (32 lower limbs) with Blount’s disease who underwent gradual correction of deformity using a ring external fixator without surgical elevation of the depressed medial tibial plateau at a mean age of 15 (range 10–37) years. Preoperative and postoperative angles of depressed medial tibia plateau (ADMTPs) of the same patient were compared for any significant change. Normally distributed data were analysed using Student’s t-test when comparing two groups or one-way analysis of variance when comparing more than two groups. Skewed data were analysed using Mann–Whitney test. Results: After extra-articular mechanical alignment surgery, statistically significant improvements in medial tibial plateau depression were seen in the infantile (P = 0.03) and juvenile (P = 0.04) Blount’s subgroups. Change in ADMTP was greater in patients who were operated on at age <17 years, before skeletal maturity (P = 0.001). The improvement was likely due to ossification of unossified cartilage at the posteromedial proximal tibia and the remodelling potential of proximal tibia physis after mechanical realignment. Conclusion: Improvement of medial tibia plateau depression is possible after mechanical realignment without surgical hemiplateau elevation in cases of infantile and juvenile Blount’s disease that present late for treatment, especially when the operation is performed before 17 years of age.
format Article
id doaj-art-2ea9a2efdc134849a2f2e783047efb9d
institution Kabale University
issn 0037-5675
2737-5935
language English
publishDate 2024-05-01
publisher Wolters Kluwer – Medknow Publications
record_format Article
series Singapore Medical Journal
spelling doaj-art-2ea9a2efdc134849a2f2e783047efb9d2025-02-09T10:22:51ZengWolters Kluwer – Medknow PublicationsSingapore Medical Journal0037-56752737-59352024-05-0165527427810.11622/smedj.2021189Change in angle of depressed medial tibial plateau following extra-articular mechanical realignment surgery in children with Blount’s disease who presented late for treatmentZi Hao PhangMohammed AlbakerRoshan GunalanAdrian Yen Xian LeeAik SawIntroduction: The aim of this study was to determine whether any change in degree of medial tibia plateau depression after extra-articular mechanical realignment surgery was observed in children with Blount’s disease who presented late for treatment in their adolescence and young adulthood. Methods: We retrospectively reviewed the radiographic parameters of 22 patients (32 lower limbs) with Blount’s disease who underwent gradual correction of deformity using a ring external fixator without surgical elevation of the depressed medial tibial plateau at a mean age of 15 (range 10–37) years. Preoperative and postoperative angles of depressed medial tibia plateau (ADMTPs) of the same patient were compared for any significant change. Normally distributed data were analysed using Student’s t-test when comparing two groups or one-way analysis of variance when comparing more than two groups. Skewed data were analysed using Mann–Whitney test. Results: After extra-articular mechanical alignment surgery, statistically significant improvements in medial tibial plateau depression were seen in the infantile (P = 0.03) and juvenile (P = 0.04) Blount’s subgroups. Change in ADMTP was greater in patients who were operated on at age <17 years, before skeletal maturity (P = 0.001). The improvement was likely due to ossification of unossified cartilage at the posteromedial proximal tibia and the remodelling potential of proximal tibia physis after mechanical realignment. Conclusion: Improvement of medial tibia plateau depression is possible after mechanical realignment without surgical hemiplateau elevation in cases of infantile and juvenile Blount’s disease that present late for treatment, especially when the operation is performed before 17 years of age.https://journals.lww.com/10.11622/smedj.2021189blount’s diseasedeformitygenu varumorthopaedicspaediatrics
spellingShingle Zi Hao Phang
Mohammed Albaker
Roshan Gunalan
Adrian Yen Xian Lee
Aik Saw
Change in angle of depressed medial tibial plateau following extra-articular mechanical realignment surgery in children with Blount’s disease who presented late for treatment
Singapore Medical Journal
blount’s disease
deformity
genu varum
orthopaedics
paediatrics
title Change in angle of depressed medial tibial plateau following extra-articular mechanical realignment surgery in children with Blount’s disease who presented late for treatment
title_full Change in angle of depressed medial tibial plateau following extra-articular mechanical realignment surgery in children with Blount’s disease who presented late for treatment
title_fullStr Change in angle of depressed medial tibial plateau following extra-articular mechanical realignment surgery in children with Blount’s disease who presented late for treatment
title_full_unstemmed Change in angle of depressed medial tibial plateau following extra-articular mechanical realignment surgery in children with Blount’s disease who presented late for treatment
title_short Change in angle of depressed medial tibial plateau following extra-articular mechanical realignment surgery in children with Blount’s disease who presented late for treatment
title_sort change in angle of depressed medial tibial plateau following extra articular mechanical realignment surgery in children with blount s disease who presented late for treatment
topic blount’s disease
deformity
genu varum
orthopaedics
paediatrics
url https://journals.lww.com/10.11622/smedj.2021189
work_keys_str_mv AT zihaophang changeinangleofdepressedmedialtibialplateaufollowingextraarticularmechanicalrealignmentsurgeryinchildrenwithblountsdiseasewhopresentedlatefortreatment
AT mohammedalbaker changeinangleofdepressedmedialtibialplateaufollowingextraarticularmechanicalrealignmentsurgeryinchildrenwithblountsdiseasewhopresentedlatefortreatment
AT roshangunalan changeinangleofdepressedmedialtibialplateaufollowingextraarticularmechanicalrealignmentsurgeryinchildrenwithblountsdiseasewhopresentedlatefortreatment
AT adrianyenxianlee changeinangleofdepressedmedialtibialplateaufollowingextraarticularmechanicalrealignmentsurgeryinchildrenwithblountsdiseasewhopresentedlatefortreatment
AT aiksaw changeinangleofdepressedmedialtibialplateaufollowingextraarticularmechanicalrealignmentsurgeryinchildrenwithblountsdiseasewhopresentedlatefortreatment