Since modern tissue expansion was introduced in 1976, it has proved to
be a safe and effective technique for obtaining extra tissue where tr
aditionally distant flaps and grafts had been used. However, the lengt
hy expansion times and prolonged gross deformity of conventional expan
sion protocols have often deterred both physician and patient from cho
osing this reconstructive option. Over the past decade, attempts to sh
orten the total expansion time have centered around decreasing the tim
e intervals between injections. Recently, researchers at Washington Un
iversity have developed the technique of continuous tissue expansion (
CTE), using a custom-designed, computerized pump. With CTE, expansion
times have been shortened from 2 weeks to 3 days. At our institution,
we have demonstrated that CTE can be safely and economically performed
with the use of equipment already existent in most medical centers. W
e describe the equipment and technique and present two cases of succes
sful clinical application of CTE.