Autologous Fat Grafting Techniques in Patients Undergoing Reconstructive Surgery

PRIMARY OBJECTIVES:

I. Measure and compare the rate of fat processed, defined as the volume of fat processed per unit time associated with the use of three aforementioned adipose tissue processing techniques.

SECONDARY OBJECTIVES:

I. To measure total fat grafting time: time from initiation of fat harvesting to the end of fat injection.

II. To measure volume of fat processed: volume of fat obtained after fat processing.

III. To measure total operation room (OR) time: time from patient entry into the OR (or when the patient barcode is read on entering the OR) to the time at which the patient leaves the OR.

OUTLINE: Patients are randomized to 1 of 3 arms.

ARM I (REVOLVE TM): Patients undergo AFG reconstructive surgery comprising washing and low velocity spinning using a commercially available system that washes the lipoaspirate with lactated Ringer's solution separates non-fat material from the fat with gentle centrifugal force and suction.

ARM II (CYTORI PUREGRAT TM): Patients undergo AFG reconstructive surgery comprising gravity filtration using a commercially available system in which the lipoaspirate is rinsed with lactated Ringer's solution (RL) and the non-fat material is filtered through mesh.

ARM III (COLEMAN TECHNIQUE): Patients undergo AFG reconstructive surgery comprising standard centrifugation at 3200 revolutions per minute (rpm) for 3 minutes with the resulting oil and aqueous layers discarded.

Inclusion criteria

• Patients with available harvest sites for fat grafting
• Patients with body mass index (BMI) > 20
• Estimated harvested fat volume >= 100 cc
• Patients are willing and able to give consent

Exclusion criteria

• Patients with active cancer, including primary cancer, recurrent cancer, or locally or distant metastasis
• Patients who are unable to provide consent
• Patients who are suspected or known to be pregnant