They are usually seen in cases of multiple injuries or direct trauma. A break of any size is called a fracture. If the broken bone punctures the skin, it is called an open or compound fracture. Advertisement What is Compound Humerus Fracture Compound humerus fracture or compound fracture of the humerus bone of the upper arm is comparatively uncommon. A fracture is a break, usually in a bone. a break in continuity of bone it may be caused by trauma, twisting due to muscle spasm or indirect loss of leverage, or by disease that results in osteopenia.
#Compound break skin#
A slight swelling may remain on the outer surface of the bone, but quite often, that region undergoes remodeling ( d), and no external evidence of the fracture remains. In a compound fracture or open fracture, there is a break in the skin and the broken bone sticks out of the skin. the breaking of a part, especially a bone.
The cartilage in the calli is replaced by trabecular bone via endochondral ossification ( c).Įventually, the internal and external calli unite, compact bone replaces spongy bone at the outer margins of the fracture, and healing is complete. the break occurs at an angle to the bone the broken bone does not tear the skin one fragment of broken bone is compressed into. In the worst cases, it may result in deformation which can further lead to impairment in the movement of the affected area. This may result in shocking pain along with swelling and bruising in the affected region. Over the next several weeks, osteoclasts resorb the dead bone osteogenic cells become active, divide, and differentiate into osteoblasts. A compound fracture can be defined as the fracture in the bone that protrudes through the skin resulting in an external wound. Within about 48 hours after the fracture, chondrocytes from the endosteum have created an internal callus (plural = calli) by secreting a fibrocartilaginous matrix between the two ends of the broken bone, while the periosteal chondrocytes and osteoblasts create an external callus of hyaline cartilage and bone, respectively, around the outside of the break ( b). (c) Cartilage of the calli is replaced by trabecular bone.
#Compound break series#
The healing of a bone fracture follows a series of progressive steps: (a) A fracture hematoma forms. If the broken bone is the result of major trauma or injury, call 911 or your local emergency.
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