The sternal angle is used to define the transverse thoracic plane which represents the imaginary boundary between the superior and inferior mediastinum. It is also used to identify the second rib during physical examination and then the rest of the ribs by counting.

2024年2月28日 · The sternal angle (of Louis), also called the manubriosternal angle, is the anterior projecting angle formed by the articulation of the manubrium and body of the sternum (manubriosternal joint), which lie in slightly different planes to each other.

2023年12月10日 · The angle of Louis is an important anatomical landmark, serving as a crucial reference point in clinical examinations and medical procedures. For example, clinicians use the sternal angle to guide stethoscope placement when auscultating heart and lung sounds.

2020年12月13日 · The sternal angle is the angle formed between the manubrium of the sternum and the body of the sternum (manubriosternal junction), and is an important anatomical landmark. It marks the level of the 2nd pair of costal cartilages which lies at the level of the intervertebral disc between thoracic vertebrae 4 and 5.

2023年7月24日 · The sternal angle is where the body of the sternum joins the manubrium sterni. Identification of the sternal angle is a useful anatomical landmark because the costal cartilages of the 2nd pair of ribs attach to the sternum at this site.

2025年1月31日 · The sternal angle, also known as the angle of Louis, is a palpable bony prominence at the junction between the manubrium and the body of the sternum. It is located at the level of the second costal cartilage and is an important anatomical landmark for clinicians.

2018年5月11日 · UPDATED:The sternal angle is the term used to denote the angulation at the joint between the manubrium and the body of the sternum. This transverse joint is called the "manubriosternal joint" and is a secondary cartilaginous joint of a type known as a symphysis.

2018年8月8日 · The sternal angle marks out the inferior border of the superior mediastinum and is located at the level of the intervertebral disc between T4 – T5. The 2nd rib combines with the sternum at the sternal angle, and makes it an important site for determining rib number.

2023年10月30日 · The manubriosternal joint (manubriosternal angle or angle of Louis) is a secondary cartilaginous joint between two parts of the sternum; the manubrium and the body of sternum. It is formed by the two irregular articular facets located on the inferior margin of the manubrium and the superior surface of the sternal body respectively.

The sternal angle (angle of Louis) is the anterior angle formed by the junction of the manubrium and the body of the sternum which varies around 162 degrees in males. The sternal angle is a palpable clinical landmark under the skin that marks a number of other features: Boundary between the superior and inferior portion of the mediastinum