Anatomy of the Hand
The surgery would mainly have to focus on the forearm region. However,
the structural and functional continuity is extremely complex so when
talking about the forearm, one must keep in mind the structure of the
hand.
Terminology
When taking about the anatomy, it is good to know that the forearm presents
anterior and posterior sides, and the hand presents palmar and dorsal
surfaces. The forearm has a lateral (or radial) border and a medial (or
ulna) border.
Bones
There are two bones that need to be taken into consideration during
the surgery. The ulna bone lies medial, while the radial bone lies on
the lateral side. The bodies of the two bones are connected by the antebrachial
interosseous membrane. During the surgery the ulna and radial bones
are the first structures to be attached (done by metal plates). The
surgeons, before surgery, need to make sure that the bone structure
and the hand size are close to the recipient’s bone and hand size.

Anatomical Chart Company 2002, modified
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