Direct-to-Implant Breast Reconstruction

Dr. Lisa Cassileth pioneered the one-stage breast reconstruction. This one-stage surgery has lower risks compared to traditional tissue expander reconstruction, as shown in Dr. Cassileth’s original publication in 2012 in the Annals of Plastic Surgery.1 This direct-to-implant technique makes tissue expanders unnecessary and allows women to wake up from their mastectomy surgery with natural-looking breasts. Dr. Cassileth, Dr. Killeen, and Dr. Min have continued to refine the surgery, placing the implant above the pectoralis major muscle with an internal bra, avoiding disruption and injury to the chest wall, and performing nerve grafting for sensation. This makes the reconstruction process shorter and more comfortable, and no further surgery is required.

Dr. Kelly Killeen on Dr. 90210 Explaining the Direct-to-Implant Breast Reconstruction Technique


Patients come to us frustrated with the bad-looking results they received from typical reconstruction procedures. The traditional process is painful, requires multiple surgeries, and gives less-than-ideal outcomes. The traditional, standard goal of breast reconstruction has been to make you “look normal in clothes.” With Direct-to-Implant breast reconstruction, we are changing the “standard of care” for breast reconstruction. Our standard is “naked in the locker room” – you should feel comfortable and sexy with your new, reconstructed breasts, and confident that no one in the locker room will even be able to tell that you had breast cancer surgery.

One Stage Breast Reconstruction - Dr. Kelly Killeen

Dr. Killeen

Dr. Killeen
Breast and Body Plastic and Reconstructive Surgeon

Double-Board-Certified Beverly Hills Plastic Surgeon and Breast & Body Specialist

American Society of Plastic Surgeons
American Board of Plastic Surgery
American College of Surgeons
The Aesthetic Society
Cassileth Plastic Surgery & Skin Care

Contact Cassileth Plastic Surgery about Direct-to-Implant breast reconstruction in Beverly Hills to set up a meeting with one of our plastic surgeons. Send a message online to arrange a consultation, or call (310) -278-8200.


We perform direct-to-implant, above-the-muscle reconstruction on almost every one of our mastectomy patients, with extremely low risk of complications and highly aesthetic results. So, what do we do differently than everyone else? There are a few important distinctions: the choice of the mastectomy surgeon; specific techniques designed to blend and support the implant; and a set of surgical and peri-operative protocols that further increase the comfort and safety of the surgery.

1. Your Mastectomy Surgeon

In any mastectomy with reconstruction, two surgeons are involved: the breast surgeon (who does your mastectomy) and the plastic surgeon (who does your breast reconstruction after the mastectomy is complete). Obviously, having a great plastic surgeon is important to having a great result, but having an excellent mastectomy surgeon is equally critical. As plastic surgeons, we can only give you the best aesthetic outcome when you have the best mastectomy surgeon. We only work with breast surgeons who have demonstrated an extremely low risk of mastectomy flap necrosis, an unfortunately common condition that can cause death of the breast skin and ruins the appearance of the breast. Our favorite surgeons are at, and have a mastectomy flap necrosis risk as low as 1%, when most surgeons have a rate of 30% or higher. Our breast cancer surgeons also preserve the nipple and make only a small incision at the crease under the breast, a feat that other surgeons find too technically difficult.

2. Special Implant Techniques

Next, we employ specific techniques to support the implant and make the breast look natural. When it comes to the breast reconstruction portion of the procedure, the details make all the difference. First, the pectoral muscle is left intact, which means the recovery is far less painful, and avoids an unnatural-looking condition called “pec flex” deformity, where the pectoral muscle moves the breast upon flexing. Second, we create an internal bra. Most plastic surgeons wrap the implant with acellular dermal matrix and place it in the mastectomy flap, which lets the implant to droop to the bottom of the breast pocket and gives the implant very little support. Even worse, wrapping the edges of the dermal matrix around the implant makes its edges harsher, not softer. We create a full internal bra prior to placing the implant, using dermal matrix to bridge the gap between the implant and the chest wall.

This softens the contour of the implant, makes it look more natural, gives it room to shift slightly as a natural breast does, and decreases the need for fat grafting later. Third, we now offer the option to reinnervate breast skin. During mastectomy surgery, the nerves which naturally pass through the breast tissue are removed, leaving the breast numb. Using an allogenic nerve graft, we re-connect the deep nerves to the superficial nerves, which allows for breast sensation. This is performed at the same time as the reconstruction, but the nerve must regrow through the graft. Sensation improves as you heal.

Breast Specialist

An Ivy-League-Trained Plastic Surgeon Specializing in Breast and Body Procedures in Los Angeles

Dr. Min

3. Perioperative Details

Finally, we pay attention to a few key surgical and perioperative details that further increase the comfort and safety of surgery. We use a Prevena VAC to seal the closure under a sterile, mild vacuum for five days after surgery. This radically lowers the risk of surgical infection and improves oxygenation of the wound edge, lowering complications rates. Next, we perform Exparel nerve-blocking injections during surgery, which blocks pain for three days after surgery. This decreased pain helps encourage early mobility after surgery (getting moving helps you recover faster!). Our concierge nurse staff will follow you closely after surgery, which allows us to attend fully to your needs from day to day.

Before & After

Browse our gallery to see the results of our breast reconstruction surgeries.

Before & After Photos
Before & After Photos
Before & After Photos



Surgical techniques have continued to improve, and we can now create a breast that often looks as good as, or better than the original. However, mastectomy typically leaves the breast and nipple numb.3 We are thrilled to now offer our patients a nerve graft at the time of the mastectomy surgery and finally give patients an option for some return to sensation.

The nerves that are cut during mastectomy are meticulously and carefully reconnected to nerve endings in the skin. Patients typically start to notice sensation returning as early as three months after the mastectomy.


Sensation-preserving mastectomies are good options for women who want to preserve sensation and are undergoing mastectomy. The nerves that are used are toward the outside of the breast, where the lateral intercostal nerves traditionally enter the breast tissue. The proximal nerve must be away from any area that may contain DCIS or breast cancer. Breast implant size may need to be limited depending on each patient’s anatomy.


Traditional mastectomy usually causes the loss of sensation to the breast and nipple, more importantly light touch, which is protective, as well as pleasure sensation. That is because traditional mastectomy resects the nerves that supply sensation to the majority of the breast skin and nipple. The cut nerves can even cause painful sensations or rarely, neuromas. With sensation-preserving mastectomy, a few months after surgery sensation will start to improve. The sensation will spread over the top of the breast until it has fully reinnervated, which may take up to one year.


Sensation-preserving mastectomy is best performed by a team of surgeons specializing in their unique skills. Three aspects of the operation are critical to successful outcome: first, the mastectomy must preserve normal subcutaneous fat, and avoid complications such as skin necrosis. We only trust our surgeons, Dr. Leslie Memsic and Dr. Heather Richardson, to perform the mastectomy, as they carefully avoid injury to the main intercostal nerves and the skin containing the nerve endings. The breast reconstruction, performed by our plastic surgeons, Dr. Kelly Killeen, Dr. Lisa Cassileth, and Dr. Elise Min, must be performed over the muscle and ideally direct-to implant. The third critical factor is that our surgeons work together to dissect the nerve prior to the mastectomy, and then reconnect the nerve endings after the reconstruction. The final stage of the operation is a microsurgical procedure and involves advanced training with nerve grafting. We are the first team to offer this operation in Southern California, and see patients from throughout the US.


We often hear from our patients that other surgeons have told them “you aren’t a candidate for direct-to-implant reconstruction.” They are told that it is too dangerous, and it only works for non-droopy, A- and B-sized breasts. Having performed hundreds of direct-to-implant reconstructions over more than 15 years, we are here to tell you that it’s not true. First, consider that it’s actually the first part of the surgery, the mastectomy, that can be the most “dangerous.” For most breast cancer surgeons, the complication rate due to mastectomy flap necrosis is 30% or more.2 That means that most plastic surgeons are very wary of trying direct-to-implant reconstruction because they fear that the skin or nipple may die after the surgery. This would mean that the skin would need removal and closure. So they advise their patients to have a three-phase surgical process, with mastectomy and placement of tissue expanders, followed by three months of painful expansion, followed by surgery to replace the expanders with permanent implants. With our mastectomy surgeons, the risk of mastectomy flap necrosis is very low, around 1%. This means we can trust the breast skin, nipple, and areola to survive. And you don’t need to have tissue expanders. Think about it… with a pre-pectoral implant, and if you replace the breast with an implant that easily fits in place of the breast tissue, why would a tissue expander even be needed? It’s not needed. Tissue expanders truly are an old, unnecessary device, used only in today’s breast reconstruction as a hedge against thin, ischemic mastectomy flaps, or used by plastic surgeons that cannot abandon out-of-date techniques.

Direct-to-implant can be used in combination with other techniques where appropriate. For women with large or droopy breasts, we place the implant using an "autoderm flap" which lifts and protects at the same time; this is where extra skin is used to reinforce the implant position and a lift is done concomitantly to the mastectomy.

For previously radiated breasts, it is much safer to perform the reconstruction over the muscle, and also use the direct to implant techniques to minimalize the increased risk of infection that comes with multiple implant surgeries. For patients with existing breast augmentation, the implants are usually placed under the muscle since the muscle is already partially detached from the chest wall.

Breast Reconstruction Direct-to-Implant - Dr. Lisa Cassileth


For women who want breast reconstruction without implants, we also offer a “no-implant” one-stage surgery. Like our direct-to-implant reconstruction, the SWIM breast reconstruction is carried out at the same time as a mastectomy, but involves creating a breast from the patient's own existing tissue and fat instead of using a implant. Our article, published in the Journal of the American College of Surgeons, details the procedure and its benefits. The SWIM is ideal for larger-breasted women who want natural-looking, smaller breasts, as well as those who have undergone radiation treatments for cancer or who have multiple risk factors and health issues.

The Cassileth Plastic Surgery team performs more than 400 reconstruction cases each year. This includes Direct-to-Implant breast reconstruction, nipple reconstruction, reconstruction revisions, SWIM flaps, and fat grafting. Most of those cases are one-stage procedures—primary breast reconstructions done at the same time as the patient's mastectomy—in our Beverly Hills surgery center.

1 Cassileth L, Kohanzadeh S, Amersi F. One-stage immediate breast reconstruction with implants: a new option for immediate reconstruction. Ann Plast Surg. 2012 Aug;69(2):134-8. doi: 10.1097/SAP.0b013e3182250c60. PMID: 21734545.

2 Robertson SA, Jeevaratnam JA, Agrawal A, Cutress RI. Mastectomy skin flap necrosis: challenges and solutions. Breast Cancer (Dove Med Press). 2017;9:141-152. Published 2017 Mar 13. doi:10.2147/BCTT.S81712


Patient Testimonials

Laura's Story

I do not have enough wonderful words for Dr. Cassileth and her staff! After finding out I was BRCA 1 positive at age 37, I immediately knew I wanted preventative surgery to decrease my cancer odds. Dr. Cassileth was able to perform Direct To Implant surgery on me and I am thrilled with the results. It is amazing that my mastectomy breasts look better than they did before. She is truly the best at what she does and I can't say enough great things about her nurse Carollee as well, who is there the entire time. Thank you Dr. Cassileth and team!!

Dr. Cassileth
Breast Specialist

Board-Certified Beverly Hills Plastic Surgeon, Breast Specialist, and Direct-to-Implant Breast Reconstruction Inventor

American Society of Plastic Surgeons
American Board of Plastic Surgery
American College of Surgeons
The Aesthetic Society
Dr. Cassileth
Cassileth Plastic Surgery & Skin Care

Arrange a consultation for Direct-to-Implant breast reconstruction at Beverly Hills' Cassileth Plastic Surgery. Women from Santa Monica, the entire Los Angeles area, and beyond can Send a message online or call (310) -278-8200.

Spread the love

Connect with us on social media! We pride ourselves on building real relationships with our patients near and far.