What is a diaphyseal humerus fracture?
Humeral shaft fractures are common fractures of the diaphysis of the humerus, which may be associated with radial nerve injury.
What is a humeral diaphysis?
The humerus is a long bone which consists of a shaft (diaphysis) and two extremities (epiphysis). It is the longest bone of the upper extremity.
Where is the diaphysis located in the humerus?
The adult humerus develops from three individual bones in the fetus: the diaphysis, or central shaft, and two epiphyses that form the end caps of the bone. Between these three bones is a thin layer of hyaline cartilage known as the epiphyseal plate or growth plate.
What is proximal humeral diaphysis?
Proximal humeral fractures occur most commonly in older adults, and their incidence is increasing. Fractures of the humerus can occur proximally, in the shaft (diaphysis), or distally. The majority of both proximal and midshaft humeral fractures are nondisplaced and can be treated conservatively (ie, nonsurgically).
Can a broken humerus heal without surgery?
A humerus shaft fracture may be treated with or without surgery, depending on the fracture pattern and associated injuries (i.e., nerve injury or open fracture). A temporary splint extending from the shoulder to the forearm and holding the elbow bent at 90 degrees can be used for initial management of the fracture.
What is the commonest complication of fracture of mid shaft of humerus?
The two complications often seen are injuries to the radial nerve and nonunion of the fracture.
What nerve can be damaged if you have a fracture of the shaft of the humerus?
The radial nerve is most likely to be damaged in humerus fractures that have a lateral displacement of the distal fracture segment, as the nerve is tethered to the bone and cannot withstand the forces applied to it as a result of the displacement.
What type of bone is found in the diaphysis?
compact bone
Diaphysis. The diaphysis is the shaft of the long bone, the main body. The diaphysis is a tube with a hollow center called the medullary cavity (or marrow cavity). The wall of the diaphysis is made up of compact bone, which is dense and very hard.
Which nerve can be injured in case of fracture of humerus diaphysis and what are the clinical signs of this injury?
The radial nerve passes posterior and lateral to the humeral diaphysis and these fractures can sometimes be accompanied by injury to the radial nerve.
What is the most common site of fracture in the humerus?
The most frequently fractured site of the humerus especially in elderly is the surgical neck which is an area of constriction distal to the tuberosities.
What does the diaphysis do?
Diaphysis Function The diaphysis plays an essential role in the structural functionality, the transport of oxygen and immune support, and mineral and fat storage. The medullary cavity, housed within the diaphysis, is where blood products, including red blood cells, white blood cells, and platelets, are formed.
Does the diaphysis have bone marrow?
The diaphysis, or central shaft, contains bone marrow in a marrow cavity. The rounded ends, the epiphyses, are covered with articular cartilage and are filled with red bone marrow, which produces blood cells (Figure 2). Most of the limb bones are long bones—for example, the femur, tibia, ulna, and radius.