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The sternum develops from two cartilaginous bars one on the left and one on the right, connected with the cartilages of the ribs on each side. [5] These two bars fuse together along the middle to form the cartilaginous sternum which is ossified from six centers: one for the manubrium, four for the body, and one for the xiphoid process .
Lateral sternal line: A vertical line corresponding to the lateral margin of the sternum. Parasternal line: A vertical line equidistant from the sternal and mid-clavicular lines. Mid-clavicular line: A vertical line passing through the midpoint of the clavicle. Mammillary line
All bars may be placed through two incisions or additional incisions may be made. The bar is then flipped, and the sternum pops out. To support the bar and keep it in place, a metal plate called a stabilizer may be inserted with the bar on one side of the torso. PDS sutures may also be used in addition to the stabilizer. The stabilizer fits ...
The sternal angle marks the point at which the costal cartilage of either second rib articulates with the sternum. During physical examinations, the readily palpated sternal angle is thus used as a landmark to identify the 2nd rib, and by extension, by counting, also the remaining ribs. Meanwhile, the first rib cannot be used for this purpose ...
This is a common cause of chest pain. [5] Severe trauma may lead to fracture of the costal cartilage. [6] Such injuries often go unnoticed during x-ray scans, but can be diagnosed with CT scans. [6] Surgery is typically used to fix the costal cartilage back onto either the rib or sternum. [6]
Lateral position Also called the side-lying position, it is like the jackknife except the patient is on his or her side. Other similar positions are Lateral chest and Lateral kidney. Lloyd-Davies position It is a medical term referring to a common position for surgical procedures involving the pelvis and lower abdomen.
When in lying position, the body may assume a great variety of shapes and positions. The following are the basic recognized positions: Supine position: lying on the back with the face up; Prone position: lying on the chest with the face down ("lying down" or "going prone") Lying on either side, with the body straight or bent/curled forward or ...
A small bar is inserted underneath the sternum to hold it up in the desired position. The bar is left implanted until the cartilage grows back, typically about six months. The bar is subsequently removed in a simple outpatient procedure; this technique is thus a two-stage procedure. [citation needed]