Full Leg Radiographs

Other Names

Mechanism of obtaining Teleroentgenogram and Orthoroentgenogram

• Lower limb radiography
• Teleroentgenogram
• Orthoroentgenogram

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Introduction

• Radiographic study used to evaluate anatomic leg length, calculate leg-length discrepancies
• Utilizes a long ruler placed on the film
• Three radiographs including bilateral hips, knees and ankles.

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Terminology

• Teleoroentgenogram: performed as a single-exposure weight-bearing study
• Scanogram: low-radiation technique similar to an orthoroentgenogram utilizing three exposures
• Orthoroentgenogram: three radiographs of the hip, knee and ankles

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Normal

• 
  A full-length lower limb x-ray radiograph
• 
  Anatomic axis of the lower limb. The anatomic axis is defined by the axis of the femoral and tibial shafts. a Diagrammatic representation. b Determination of the axis on a radiograph.

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Leg Length Discrepancy

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  Transarticular amputation through the knee joint with prosthetic leg.
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  This was a patient presenting with an abnormal gait. The right femur measures approximately 41 cm, while the left femur is about 47 cm, resulting in a limb length discrepancy of roughly 6 cm. Internal fixation with an intramedullary metallic long rod and screws has been applied to the right femur. There is mild right coxa vara and slight internal bowing of the right femur.

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Evidence

• Needs to be updated

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See Also

• Radiology Main

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