Intermediate
Technical
IVT
infantile Blount disease
The early-onset form of Blount disease affecting children under 4 years with characteristic medial tibial growth disturbance.
Full Definition
Infantile Blount disease is the early-onset form of tibia vara affecting children typically under 4 years of age, characterized by progressive medial angulation of the proximal tibia. The condition results from growth disturbance of the medial aspect of the proximal tibial physis and is often bilateral. Risk factors include early walking, obesity, and certain ethnic backgrounds. The Langenskiöld classification system grades the severity and guides treatment decisions between bracing and surgical intervention.
Usage
Usage note: Specify 'infantile' to distinguish from adolescent form, which has different treatment algorithms.
In Context
- "The 2-year-old presented with bilateral infantile Blount disease confirmed by the characteristic metaphyseal beaking." — Pediatric orthopedic consultation
- "Langenskiöld grade III changes indicated surgical intervention rather than continued bracing for this infantile Blount disease." — Treatment planning discussion
Also known as
early-onset tibia vara
Contrasted with
adolescent Blount disease
Don't confuse with
physiologic genu varum
adolescent Blount disease