Definition
A growth disorder of the medial proximal tibial physis causing progressive tibia vara.
Types
- Infantile form
- Adolescent form
Clinical features
- Varus deformity centred at the proximal tibia
- Internal tibial torsion may coexist
- Lateral thrust during gait in more severe cases
- Often associated with obesity, especially in the adolescent form
Imaging
- Medial metaphyseal beaking and sloping
- Abnormal medial proximal tibial physis
- Mechanical axis passes medially
Differential diagnosis
- Physiological bowing
- Rickets
- Skeletal dysplasia
Management
- Observation in physiological bowing only
- Bracing in selected early infantile cases
- Osteotomy or guided growth for progressive deformity
- More complex deformity correction in neglected cases
Diagram
