78973-5

LOINC code 78973-5 identifies "CT scanogram Lower extremity - bilateral for leg measurement WO contrast". A computed tomography (CT) scanogram is a low-dose, non-contrast radiation imaging modality used for a variety of indications, including ante version, femur length and tibial length. A CT scanogram can be used for leg measurement when there are flexion contractures that would distort anteroposterior images, and when lateral images from a CT can provide bone leg measurement in patients with leg inequalities (e.g., ununited fracture). CT measurements of anteversion are based on the angle of rotation of the femoral neck relative to the femoral condyles and are used to determine whether there are rotational components, not simply a discrepancy in leg length.

This code measures Multisection for leg measurement^WO contrast in Lower extremity.bilateral. It belongs to the RAD class in the LOINC classification.

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.