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
Reported normal values for Baumann's angle range between 9 and 26°[1] An angle of more than 10° is generally regarded as acceptable.[1] 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
External links
Further reading
- Keenan, W. N.; Clegg, J (1996). "Variation of Baumann's angle with age, sex, and side: Implications for its use in radiological monitoring of supracondylar fracture of the humerus in children". Journal of pediatric orthopedics. 16 (1): 97–8. PMID 8747363.
- Silva, Mauricio; Pandarinath, Rajeev; Farng, Eugene; Park, Samuel; Caneda, Cherlyn; Fong, Yi-Jen; Penman, Adam (2009). "Inter- and intra-observer reliability of the Baumann angle of the humerus in children with supracondylar humeral fractures". International Orthopaedics. 34 (4): 553–7. PMC 2903132
. PMID 19424695. doi:10.1007/s00264-009-0787-0. - Lee Pace, J.; Wiater, Brett; Schmale, Gregory; Jinguji, Thomas; Bompadre, Viviana; Krengel, Walter (2012). "Baumann Angle and Radial-Ulnar Overlap". Journal of Pediatric Orthopaedics. 32 (5): 467–72. PMID 22706461. doi:10.1097/BPO.0b013e318259f2a1.
- Krengel, Walter F.; Wiater, Brett P.; Pace, James Lee; Jinguji, Thomas M.; Bompadre, Viviana; Stults, Janna K.; Schmale, Gregory A. (2012). "Does Using the Medial or Lateral Humeral Line Improve Reliability of Baumann Angle Measurement on Plain X-Ray? The Effect of Humeral Length Visualized on the X-Ray". Journal of Pediatric Orthopaedics. 32 (4): 373–7. PMID 22584838. doi:10.1097/BPO.0b013e318251969f.
http://www.orthobullets.com/pediatrics/4007/supracondylar-fracture--pediatric