Congenital Anomaly Discussion
Congenital differences of the upper extremity have an infinite variety of
manifestations. Not all benefit from surgery. Surgery may be indicated with
the following points in mind. For most patients:
An obviously different hand cannot be made less obvious.
Appearance cannot be made normal if the extremity does not have an
essentially normal appearance to begin with.
Parent's expectations will almost always be unrealistic.
Many deformities recur or worsen during growth spurts.
Adults undergoing late reconstruction are often disappointed.
Certain congenital abnormalities may lead to symptoms later in life, render
the extremity more prone to injury, or affect the expected outcome
following treatment for other regional problems. A cyst in a bone may leave
it prone to fracture. Abnormal joints or abnormal connections between bones
may develop painful arthritis following relatively minor
injury. Abnormal blood supply to bones may lead to dramatic fracture
complications. In some cases, the diagnosis of a congenital difference is
made only after injury. In this context, it may be impossible to determine
the extent to which symptoms were due to injury or to the preexisting
abnormality.
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