Abstract
This study will present the histological findings of biopsies acquired from the medial and lateral part of the proximal tibia during the W/M serrated osteotomy in patients with infantile Blount's disease. It is hypothesized that the medial metaphyseal area of the proximal tibia will present a different ossification pattern compared with the lateral area.
Highlights
Blount’s disease is characterized by tibial bowing, torsion and beaking of the posteromedial proximal tibia and involves the epiphysis, physis and metaphysis [1,2,3]
Infantile Blount’s disease manifests between the age of four and ten years with progressive pain and laxity for which early surgical correction is recommended when conservative treatment with plaster correction has failed
Morphologic changes are classified by Langenskiold and colleagues which is based on age and severity of the down sloping of the medial epiphysis [8]
Summary
Blount’s disease ( known as tibia vara or osteochondrosis deformans tibiae) is characterized by tibial bowing, torsion and beaking of the posteromedial proximal tibia and involves the epiphysis, physis and metaphysis [1,2,3]. Infantile Blount’s disease manifests between the age of four and ten years with progressive pain and laxity for which early surgical correction is recommended when conservative treatment with plaster correction has failed. The aetiology of infantile Blount’s disease is probably multifactorial. Associations are found between Blount’s disease and the Afro-Caribbean race, early walking age and obesity [3,4,5]. Genetic predisposition is suggested and mechanical loading on the physis is often implicated [4,6,7]. Morphologic changes are classified by Langenskiold and colleagues which is based on age and severity of the down sloping of the medial epiphysis [8]
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