Baumann's angle

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File:Baumann's Angle.jpg
Baumann's Angle

Baumann's angle , also known as the humeral-capitellar angle, is measured on an AP radiograph of the elbow between the long axis of the humerus and the growth plate of the lateral condyle.

Clinical Use

A normal carrying angle is approximately 5-15°, and so when reducing paediatric supracondylar humerus fractures, a deviation of more than 5° from the contralateral side should not be accepted.

Alteration of Baumann angle: Baumann's angle is created by drawing a line parallel to the longitudinal axis of the humeral shaft and a line along the lateral condylar physis as viewed on the AP image normal is 70-75 degrees, but best judge is a comparison of the contralateral side deviation of more than 5 degrees indicates coronal plane deformity and should not be accepted.

References

Wheeless Online

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http://www.orthobullets.com/pediatrics/4007/supracondylar-fracture--pediatric