Tibial bowing refers specifically to (typically unilateral) congenital or infantile tibial diaphyseal deformity characterized by direction of apex
Posteromedial: Typically physiologic & secondary to intrauterine positioning
Anteromedial: Associated with fibular hemimelia
Anterolateral: High association with neurofibromatosis type 1 (NF1)
Beyond these specific circumstances, lower limb bowing deformities have broader differential diagnostic considerations for underlying conditions that may have degrees of tibial bowing
Such deformities are not typically primary or centered at diaphysis
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
CLINICAL ISSUES
Presentation
Natural History & Prognosis
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
Kesireddy N et al: Current treatment of congenital pseudarthrosis of the tibia: a systematic review and meta-analysis. J Pediatr Orthop B. 27(6):541-50, 2018
Bedoya MA et al: Common patterns of congenital lower extremity shortening: diagnosis, classification, and follow-up. Radiographics. 35(4):1191-207, 2015
Zbinden I et al: Tibial bowing in children - what is normal? A radiographic study. Eur Radiol. 25(12):3459-71, 2015
Oberc A et al: Fibular hemimelia - diagnostic management, principles, and results of treatment. J Pediatr Orthop B. 22(5):450-6, 2013
Kaufman SD et al: Limb lengthening in congenital posteromedial bow of the tibia. Strategies Trauma Limb Reconstr. 7(3):147-53, 2012
Shah HH et al: Congenital posteromedial bowing of the tibia: a retrospective analysis of growth abnormalities in the leg. J Pediatr Orthop B. 18(3):120-8, 2009
Stevenson DA et al: Analysis of radiographic characteristics of anterolateral bowing of the leg before fracture in neurofibromatosis type 1. J Pediatr Orthop. 29(4):385-92, 2009
Schindeler A et al: Recent insights into bone development, homeostasis, and repair in type 1 neurofibromatosis (NF1). Bone. 42(4):616-22, 2008
Stevenson DA et al: The use of anterolateral bowing of the lower leg in the diagnostic criteria for neurofibromatosis type 1. Genet Med. 9(7):409-12, 2007
Cheema JI et al: Radiographic characteristics of lower-extremity bowing in children. Radiographics. 23(4):871-80, 2003
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Diagnostic Checklist
TERMINOLOGY
Definitions
Tibial bowing refers specifically to (typically unilateral) congenital or infantile tibial diaphyseal deformity characterized by direction of apex
Posteromedial: Typically physiologic & secondary to intrauterine positioning
Anteromedial: Associated with fibular hemimelia
Anterolateral: High association with neurofibromatosis type 1 (NF1)
Beyond these specific circumstances, lower limb bowing deformities have broader differential diagnostic considerations for underlying conditions that may have degrees of tibial bowing
Such deformities are not typically primary or centered at diaphysis
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
CLINICAL ISSUES
Presentation
Natural History & Prognosis
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
Kesireddy N et al: Current treatment of congenital pseudarthrosis of the tibia: a systematic review and meta-analysis. J Pediatr Orthop B. 27(6):541-50, 2018
Bedoya MA et al: Common patterns of congenital lower extremity shortening: diagnosis, classification, and follow-up. Radiographics. 35(4):1191-207, 2015
Zbinden I et al: Tibial bowing in children - what is normal? A radiographic study. Eur Radiol. 25(12):3459-71, 2015
Oberc A et al: Fibular hemimelia - diagnostic management, principles, and results of treatment. J Pediatr Orthop B. 22(5):450-6, 2013
Kaufman SD et al: Limb lengthening in congenital posteromedial bow of the tibia. Strategies Trauma Limb Reconstr. 7(3):147-53, 2012
Shah HH et al: Congenital posteromedial bowing of the tibia: a retrospective analysis of growth abnormalities in the leg. J Pediatr Orthop B. 18(3):120-8, 2009
Stevenson DA et al: Analysis of radiographic characteristics of anterolateral bowing of the leg before fracture in neurofibromatosis type 1. J Pediatr Orthop. 29(4):385-92, 2009
Schindeler A et al: Recent insights into bone development, homeostasis, and repair in type 1 neurofibromatosis (NF1). Bone. 42(4):616-22, 2008
Stevenson DA et al: The use of anterolateral bowing of the lower leg in the diagnostic criteria for neurofibromatosis type 1. Genet Med. 9(7):409-12, 2007
Cheema JI et al: Radiographic characteristics of lower-extremity bowing in children. Radiographics. 23(4):871-80, 2003
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