Scaphoid, lunar and central are distinct.
What is a Scaphoid fracture and what is the usual cause?
A Scaphoid fracture usually heals well if it is diagnosed correctly
and treated early.
The cast is usually worn for 6-12 weeks until the Scaphoid bone heals.
A Scaphoid break(fracture) will usually heal well if it is recognised
and treated early.
However, about 2 in every 10 Scaphoid fractures may not be seen on X-ray at first.
Sometimes, at this time, it is still not clear whether you have had a Scaphoid fracture.
This occurs when the fragments of the Scaphoid bone heal in an incorrect position-
for example, at a slight angle.
This means that the Scaphoid will not be able to heal properly
and part of the Scaphoid bone'dies', collapses and breaks up.
Commonly you will fracture only your Scaphoid bone but sometimes
other bones around the wrist area may be broken at the same time.
Scaphoid fractures may be non-displaced(the fragments
of the broken bone haven't moved out of position) or displaced(there is some movement of the bone fragments).
A doctor will usually suspect a Scaphoid break(fracture) by the mechanism of the injury that has happened-
for example, a fall on to an outstretched hand.
Also, when they examine your wrist and hand, there is
a specific point where you are likely to be tender if you have a Scaphoid fracture.
So, there is a risk that if you have a fracture in
this area, it can sometimes stop the blood supply to part of the Scaphoid bone, leaving part of the bone without a blood supply.