Baumann angle
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Baumann's angle, also known as the humeral-capitellar angle, is used for the evaluation of the displacement of paediatric supracondylar humeral fractures. It is measured on a frontal radiograph, with elbow in extension.
This angle is formed by the humeral axis and a straight line through the epiphyseal plate of the capitulum.
A value between 64 - 81º is considered normal1. But due to significant variation between individuals, Baumann’s angle is better evaluated by comparison to the contralateral side. And a difference of more than 5° between the two sides is considered abnormal.
An increased Bauman's angle will occur with residual varus and internal rotation deformities.
-</xml><![endif]--><strong>Baumann's angle</strong> , also known as the humeral-capitellar angle, is used for the evaluation of the displacement of paediatric supracondylar humeral fractures. It is measured on a frontal radiograph, with elbow in extension.</p><p>This angle is formed by the humeral axis and a straight line through the epiphyseal plate of the capitulum.</p><p>A value between 64 - 81º is considered normal<sup>1</sup>. But due to significant variation between individuals, Baumann’s angle is better evaluated by comparison to the contralateral side. And a difference of more than 5° between the two sides is considered abnormal.</p><p>An increased Bauman's angle will occur with residual varus and internal rotation deformities.<!--[if gte mso 9]><xml>- +</xml><![endif]--><strong>Baumann's angle</strong>, also known as the <a href="/articles/humerus">humeral</a>-capitellar angle, is used for the evaluation of the displacement of paediatric <a href="/articles/supracondylar-fracture">supracondylar</a> humeral fractures. It is measured on a frontal radiograph, with elbow in extension.</p><p>This angle is formed by the humeral axis and a straight line through the epiphyseal plate of the capitulum.</p><p>A value between 64 - 81º is considered normal<sup>1</sup>. But due to significant variation between individuals, Baumann’s angle is better evaluated by comparison to the contralateral side. And a difference of more than 5° between the two sides is considered abnormal.</p><p>An increased Bauman's angle will occur with residual varus and internal rotation deformities.<!--[if gte mso 9]><xml>
References changed:
- 1. Williamson DM, Coates CJ, Miller RK, Cole WG. Normal characteristics of the Baumann (humerocapitellar) angle: an aid in assessment of supracondylar fractures. J Pediatr Orthop 1992;12(5):636-639.
- 1. Williamson DM, Coates CJ, Miller RK, Cole WG. Normal characteristics of the Baumann (humerocapitellar) angle: an aid in assessment of supracondylar fractures. J Pediatr Orthop 1992;12(5):636-639.
- 2. Acton JD, McNally MA. Baumann's confusing legacy. Injury 2001;32(1):41-43.
- 2. Acton JD, McNally MA. Baumann's confusing legacy. Injury 2001;32(1):41-43.
- Williamson DM, Coates CJ, Miller RK, Cole WG. Normal characteristics of the Baumann (humerocapitellar) angle: an aid in assessment of supracondylar fractures. J Pediatr Orthop 1992;12(5):636-639.
- Acton JD, McNally MA. Baumann's confusing legacy. Injury 2001;32(1):41-43.
- Silva M, Pandarinath R, Farng E, et al. Inter- and intra-observer reliability of the Baumann angle of the humerus in children with supracondylar humeral fractures. International Orthopaedics. 2010;34(4):553-557. doi:10.1007/s00264-009-0787-0.
Tags changed:
- baumann's angle
- supracondylar humeral fracture
- trauma
Sections changed:
- Radiography
Systems changed:
- Musculoskeletal
- Paediatrics
Images Changes:
Image 1 X-ray (Frontal) ( create )
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