Powered liposuction: an evaluation of currently available instrumentation.
BACKGROUND
Over the past several years, powered liposuction instruments have become available to the dermatologic surgeon. These instruments all move the cannula forward and backward 2-12 mm with rapidity. This motion simulates the standard human movement of the cannula and facilitates movement through the tissue. Powered liposuction may help to prevent surgeon fatigue and has recently been shown to aid in the efficacy of fat removal.


OBJECTIVE
To compare and contrast currently available powered liposuction instruments, to obtain objective engineering data on the instruments, and to compare the instruments when used on actual liposuction cases.


METHODS
Five currently available powered liposuction systems were evaluated by the author. Each instrument was used with a 3 mm dual side port cannula on patients undergoing tumescent liposuction. An independent engineering firm, who collected objective measurements such as weight, stroke force, temperature, and vibration measurements on the instruments, evaluated the units. Noise measurements were obtained.


RESULTS
Each of the five systems showed advantages and disadvantages. Important issues were the size and weight of the units, as well as whether they were driven electrically or pneumatically. Stroke force is variable (range 9.5-30 pounds). The noise of the units ranged between 60 and 87 dB. Vibration measurements varied from instrument to instrument. Units produced a variable amount of heat ranging from 77 degrees F to 102 degrees F. Most instruments are autoclavable, and one system is disposable. Build quality and reliability varied with the instrument.


CONCLUSIONS
Instruments for powered liposuction have emerged in the last 2 years, with each instrument having distinct advantages and disadvantages. This article reviews five currently available powered liposuction instruments and presents objective measurements as well as the author's experience using the instruments.
Flynn
Timothy Corcoran
TC
Department of Dermatology, Tulane University Health Sciences Center, New Orleans, Louisiana, USA. flynn@caryskincenter.com
D000005:Abdomen; D002404:Catheterization; D006801:Humans; D015187:Lipectomy / Q000295:instrumentation* / Q000379:methods; D013848:Thigh