Background:

While two stage tissue expander - implant breast reconstruction
is the most common way of reconstructing a breast after mastectomy
in North America, there have been recent reports of excellent implant reconstruction results achieved with only one surgery using AlloDerm®.
No studies, however, have compared the two methods head to head from a long-term patient satisfaction point of view.

 


Toronto AlloDerm® Breast Implant Reconstruction Trial

Principal Investigators:

Dr. Toni Zhong,
Plastic Surgeon, UHN

Dr. Mitchell Brown,
Plastic Surgeon, WCH

Co-Investigators:

Dr. Stefan Hofer,
Chief, Plastic Surgery, UHN

Dr. John Semple,
Chief Surgeon, WCH

Dr. Brett Beber,
Plastic Surgeon, WCH

Study Funding:

Plastic Surgery Educational Foundation
(National Endowment for Plastic Surgery)

Study Contacts:

If you have any questions, or would like to receive more information from the study team please call:

Dr. Toni Zhong, Principal Investigator at 416-340-3858
or the Study Coordinator at
416-340-4800, ext. 2343

Or email us:
Kate Butler, Study Co-ordinator
kbutler@uhnres.utoronto.ca

 

This study was funded and supported by PSEF

Purpose:

To test the results of a one-stage implant reconstruction using AlloDerm® compared to the traditional two stage tissue expander – implant procedure in women who are eligible for skin and/or nipple saving mastectomies.

What is AlloDerm®?
• Made from the skin from a human body (donated cadaveric skin) that has been specially prepared for your body to accept it.
• The use of AlloDerm® has been approved in Canada for many surgical procedures including breast reconstruction.
•There has been no reports of infection or disease transmitted by AlloDerm® during breast reconstruction.

Women will receive ONE of the following breast reconstruction procedures.

Two-stage Expander/ Implant (Traditional method)
• First stage involves placing a tissue expander under the chest muscle. After weekly visits for expander inflation the final implant will be put in 3-6 months later.

One-stage AlloDerm®/Implant (New method)
• Single stage involves placing the dermal matrix material in with the chest muscle to provide a hammock-like support for the breast implant at the same time.

Eligibility:

Study Population :
• Women who are eligible for immediate, implant-based reconstruction following skin-
sparing or nipple-sparing mastectomy
• 18 years of age or older
• Understand English

Study Procedures:

Baseline Questionnaires:
• Eligible women will complete an initial package of questionnaires for the study with questions about your breast-related quality of life, including feelings about the loss of your breast(s), body image and sexuality.

• The questions will take 30 minutes of your time.

Randomization:

• Women will have an equal chance (similar to tossing a coin) of being selected for the one-stage or two-stage breast reconstruction procedure.

Surgery:

• The skin-saving mastectomy surgery will follow a standard procedure in both groups.
• Breast reconstruction will be either one- stage or two-stage right after the mastectomy surgery.

Follow-up:

• Patients will attend the standard post- surgical visits depending on the type of breast reconstruction surgery.
• Women assigned to the two-stage tissue expander/ implant procedure will attend weekly clinic visits to have the expanders filled to the right size before the implant is inserted.
• An expert panel will review the aesthetic outcomes from standard before and after photos

Study Questionnaires:

• Three more study follow-up questionnaires will be mailed to participants at 2 weeks, 6 and 12 months after their reconstruction surgery.

• Each questionnaire will take less than 30 minutes to complete.

* No extra clinic visits required for the study and a small financial compensation will be provided.

Study Outcomes:
1. Questionnaires that measure:
• Satisfaction with breast appearance
• Body image & quality of life
2. Surgical complication rates

Potential Benefits and Risk of Being in the Trial:

Risks Related to Being in the Study

The risks of minor and major surgical complications we know of are the same for both the one-stage and two-stage breast reconstruction with implants.

Benefits to Being in the Study

You may or may not/ receive any direct benefit from being in this study. However, information learned from this study can help other women receiving a mastectomy with breast reconstruction in the future.