Blount disease

Janoyer, M

doi:10.1016/j.otsr.2018.01.009

Cited by 56 publications

(70 citation statements)

References 23 publications

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“…In the current study, the gross motor developmental milestones (crawling, sitting, walking) of patients within all three groups of Blount's disease were within normal limits. These findings are corroborated by Inaba et al 11 This contrasts with findings of a review by Janoyer et al 9 The literature regarding sex for both early and late-onset Blount's disease are conflicting. With infantile Blount's disease, some studies found boys and girls to be equally affected while other studies showed either a male or female preponderance.…”

Section: Discussionmentioning

confidence: 75%

“…[10][11][12] Early onset walking age has been proposed as an association with infantile Blount's disease and has been hypothesised to produce increased stress on the medial aspect of the proximal tibia in the predisposed infant with bow legs. 9 This has been disputed by other work. 11,13 Studies regarding sex and Blount's disease also show a mixture of results.…”

Section: Introductionmentioning

confidence: 94%

“…With regard to ethnicity, it has been reported that there is an increased prevalence of all groups in the African American and Hispanic populations compared with European or Asian groups. 5,[7][8][9] A genetic component of Blount's disease has been proposed with several reports demonstrating a possible hereditary cause for the disease. A direct pattern of inheritance has not yet been demonstrated.…”

Section: Introductionmentioning

confidence: 99%

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Profile of patients with Blount's disease at an academic hospital

2019

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Background: Despite an apparent increased burden of Blount's disease in South Africa, little is known of its epidemiology and associated features. The aim of this study is to explore the profile of South African patients with Blount's disease seen at an academic hospital, with respect to family history, ethnicity, associated milestones, sex, bilateral involvement and obesity. Methods: We retrospectively evaluated the hospital records of children diagnosed with Blount's disease (infantile, juvenile and adolescent groups) over a 14-year period, from 1 January 2003 to 31 December 2016 at Chris Hani Baragwanath Academic Hospital. Demographic information including family history, ethnicity, attainment of milestones, age when the deformity was first noticed, age at presentation, sex, bilateral involvement and body mass index were documented. Results: Data was available for 108 patients with a total of 172 involved limbs. In this series all patients were of black African origin. Data for 60 of the patients regarding family history was available-there were 12 documented cases with a positive family history of significant bow legs (20%). The developmental milestones of patients within all three groups were within normal limits and, in particular, were not early. The majority of the patients in the infantile and juvenile groups were female whereas the adolescent group had a male predominance. There was a similar occurrence of bilateral involvement in all groups (infantile group 64%, juvenile group 53% and adolescent group 61%). There was an increased percentage of individuals who were overweight or obese (according to BMI percentiles) in each of the three groups compared to normative data (infantile 76%, juvenile 86% and adolescent 88%). A greater proportion of male patients were classified as obese compared to female patients (82% versus 50%). There was however no significant difference in the BMI of patients with unilateral or bilateral deformity. Conclusion: New findings from this large South African population of children with Blount's disease were an increased occurrence of bilateral involvement in all age groups and no association with early walking-both findings are different from the international literature. Similar to other international studies, female preponderance in the infantile group and male preponderance in the adolescent group was confirmed. Other findings include an increased occurrence of obesity in male children in all groups as well as an increasing occurrence of obesity as the groups progressed from infantile (42%), to juvenile (76%), to adolescent (82%) using the CDC percentiles for age. No risk factors were found for unilateral involvement.

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Section: Discussionmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Profile of patients with Blount's disease at an academic hospital

2019

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“…Blount’s disease is a pathologic varus deformity that results from disruption of normal cartilage growth at the medial aspect of the proximal tibial physis [ 6 , 7 ]. It may cause severe varus deformity, leg length discrepancy, and articular incongruity [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Turner’s syndrome associated with discoid lateral meniscus and Blount’s disease: a case report

Kita

Tajima

Chosa

2021

BMC Musculoskelet Disord

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Background Turner’s syndrome, discoid meniscus, and Blount’s disease have all been studied in isolation, but, to the best of our knowledge, there have been no studies reporting a patient with all three. Thus, the first case of Turner’s syndrome with discoid meniscus and Blount’s disease is presented. Case presentation A 5-year-old Japanese girl with a history of Turner’s syndrome and Blount’s disease complained of pain in her left knee. Magnetic resonance imaging showed a discoid lateral meniscus tear, and arthroscopic partial meniscectomy was performed, providing a good outcome. Conclusions In this report, some possible explanations regarding the concomitant presence of these three diseases are discussed. A possible explanation in this case is that the patient with Turner’s syndrome had a discoid lateral meniscus that might have been induced by some genetic factors associated with Turner’s syndrome, and then the discoid lateral meniscus might have been the mechanical stress that caused Blount’s disease.

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“…But despite all these classi cations, there is still no consensus on treatment. For a long time, it was accepted in early-stage forms that tibial osteotomy before the age of 4 years guarantees a better prognosis, but nowadays, several teams defend the approach of transitory growth modulation by hemiepiphysiodesis in early-stage, leaving osteotomies for neglected forms [4,5]. Even if they all aim at restoring the mechanical axes of the limb, resuming growth, correcting laxity and joint congruence, there are no comparative studies between guided growth (GG) and osteotomy in early-stage of BD hence the interest of this study which aims to compare the results of these two techniques.…”

Section: Introductionmentioning

confidence: 99%

Guided Growth Vs. Tibial Osteotomy in Early Stage of Blount Disease

Assan¹,

Simon

Adjadohoun

et al. 2021

Preprint

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Background: There are no real comparative study between guided growth and tibial osteotomy in early stage of Blount disease. The aim of this work was to compare the results of patients treated by these two techniques. Method: We had performed a multicenter retrospective, descriptive and analytical study over a period of 05 years. All children admitted for Blount disease without medial proximal tibial epiphysiodesis and treated by one of these techniques were included. Age, sex, existence of tibial torsion, radiological stage based on Catonne's classification were studied. We also evaluated preoperatively, immediately postoperatively, and at latest follow-up tibiofemoral angle, mechanical medial proximal tibial angle, mechanical lateral distal femoral angle, and the tibial metaphyso-diaphyseal angle. Results: Seventeen (17) patients for 24 knees were included. The sex ratio was 0.54. All patients had tibial torsion. Fourteen knees (64%) were treated by guided growth at a mean age of 5.5±2.5 (range, 3-9 years). With a mean follow-up of 12 ± 3.5 months (range 6-15month); tibiofemoral, mechanical medial proximal tibial, and tibial metaphyso-diaphyseal angles were significantly corrected with normalization of the mechanical axis in 8 patients (60%). Ten patients (36%) were treated by revisited Rab osteotomy at a mean age of 7.7±4.9 years (range, 4-12 years). At a mean follow-up of 23±15 months (range, 10-48 months), only tibial metaphyso-diaphyseal angle was significantly corrected. The recurrence rate was 60%. Despite perfect correction of tibiofemoral, and mechanical medial proximal tibial angles in immediate postoperative follow-up, they gradually decrease in patients treated by Rab osteotomy, whereas they gradually increased in case of guided growth. Conclusion: Guided growth appears to be the best treatment for early stage of Blount disease. Trial registration: Retrospectively registered

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Blount disease

Cited by 56 publications

References 23 publications

Profile of patients with Blount's disease at an academic hospital

Profile of patients with Blount's disease at an academic hospital

Turner’s syndrome associated with discoid lateral meniscus and Blount’s disease: a case report

Guided Growth Vs. Tibial Osteotomy in Early Stage of Blount Disease

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