What is the metaphyseal diaphyseal junction?
We reviewed 16 metaphyseal-diaphyseal junction (MDJ) fractures treated over the four-year period 1997 to 2000. MDJ fractures occur in the area proximal to the supracondylar fossae and distal to the intersection of the metaphyseal flange and diaphysis of the humerus.
What is a metaphyseal fracture definition?
Metaphyseal fractures are also known as corner fractures, bucket handle fractures or metaphyseal lesions. It refers to an injury to the metaphysis which is the growing plate at each end of a long bone (such as tibia, femur, etc).
What is the metaphyseal region?
The metaphysis is the region where the epiphysis joins the diaphysis; in a growing bone this corresponds to the calcified layer of the epiphyseal plate together with the interdigitating bone (see Figure 4.19).
What does metaphyseal mean?
The zone of growth between the epiphysis and diaphysis during development of a bone.
How do you measure metaphyseal diaphyseal angle?
The tibial metaphyseal-diaphyseal angle is measured on an anteroposterior standing radiograph of the knee as follows: 1) draw a line along the longitudinal axis of the tibia (line 1); 2) draw a line through the lateral peaks of the proximal tibial metaphysis (line 2); 3) draw a line perpendicular to line 1 at the …
Where is the distal humerus?
The distal humerus is the lower end of the humerus. It forms the upper part of the elbow and is the spool around which the forearm bends and straightens.
What is a metaphyseal fracture of the distal radius?
DISTAL RADIUS METAPHYSEAL FRACTURES. Fractures of the distal radial metaphysis rarely require operative management. They tend to heal rapidly and remodel predictably. Nondisplaced fractures can be effectively treated closed with long-arm or short-arm cast immobilization for 4 to 6 weeks.
What causes metaphyseal fractures?
Tension and shearing forces on the infant’s limbs can cause metaphysis of long bones and consequent bucket-handle fractures. A corner fracture is the culmination of multiple small fractures (microfractures) across the metaphysis, positioned perpendicularly to the long axis of the bone.
Is Physeal and metaphyseal the same?
Long bones in children have four distinct segments (Figure 1): The epiphysis is the region of bone adjacent to the joint surface. Below it lies the physis, the area where growth occurs. Distal to that is the metaphysis, a flared region of bone, and below that lies the narrower shaft of the bone, or diaphysis.
Is the metaphyseal part of the shaft?
The long bone in a child is divided into four regions: the diaphysis (shaft or primary ossification centre), metaphysis (where the bone flares), physis (or growth plate) and the epiphysis (secondary ossification centre).
What is the metaphyseal?
The portion of a developing long bone between the diaphysis, or shaft, and the epiphysis; the growing portion of a bone. metaphyseal. pertaining to or emanating from the metaphysis.
How is the metaphyseal area of a fracture prepared?
The metaphyseal area below the head was then prepared using a tool specifically designed to break down the intramedullary cancellous bone without disrupting the subcortical bone. [5] Standard straight plates result in optimal diaphyseal stabilization but may be inadequate for fixing metaphyseal and epiphyseal fractures.
What is epiphyseal?
The portion of a developing long bone between the diaphysis, or shaft, and the epiphysis; the growing portion of a bone. metaphyseal, adjective.
What does a diaphyseal angle of 11 o mean?
The angle created between the perpendicular line shown and the metaphyseal line is the metaphyseal diaphyseal angle. It is abnormal if >11 o, indicating Blount disease.
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