The world's only recipient of two full arms in a transplant appeared in public Wednesday to talk about the success of the procedure, calling
the feeling of being whole again "indescribable".
Karl Merk, a dairy farmer, gave a press conference with his doctors
at the teaching hospital of the Technical University in the southern
German city of Munich, where he underwent the transplant managed by a
40-strong medical team.
Six years ago a work accident had led to the amputation of both his
arms. "The feeling is indescribable," Merk, 54, said as he showed off the
new limbs, which are being supported by a special "corset" while the
healing continues. "Every day I gain more mobility."
Since the amputation, Merk was reliant on round-the-clock care. Two
attempts to attach artificial prostheses failed. Discouraged, Merk said he had heard about advances in transplant science on television and sought advice at the university's Rechts der Isar Clinic. He said he most looked forward to being able to eventually feed and
How the operation was done
Doctors have been closely monitoring Merk's progress as he undergoes
physical therapy as well as psychological counselling in the aftermath
of the gruelling procedure, a world first, which was conducted July 25
Five teams working in two operating rooms gathered at 10pm the
night of the operation, one on each side of the patient and the donor,
who had died only hours before. A fifth group removed a leg vein from
The first step was to expose the muscle, nerves and blood vessels to
be connected. Before the bones of the donor could be cut, blood vessels
in his arms were filled with a cooled preservation solution.
Both the donor's arms were then removed exactly at the point
matching the patient's arm stumps. First the bones were joined, then
arteries and veins to ensure blood circulation as quickly as possible.
The surgeons attached the muscles and tendons, then the nerves and
finally the skin.
Things almost back to normal
The medical team said hand and lower arm transplants were still rare
and that the Munich operation, by attaching an elbow joint as well as
an upper arm, posed a greater challenge for the immune and circulatory
The doctors said there had been "no sign" that Merk's body was
rejecting the foreign tissue, as was feared before the procedure, and
added that his scars were healing well.
The head of the transplant team, Christoph Hoehnke, had told
reporters in August after the operation that he was deeply moved when
Merk's wife went to his bedside and instinctively reached for his
"They look just like they used to," she said, according to Hoehnke. – (Sapa, October 2008)