Safety of Breast Reconstruction Using Inferiorly Based Dermal Flap for the Ptotic Breast

Area of Science:

• Plastic Surgery
• Breast Reconstruction
• Oncologic Surgery

Background:

• The inferiorly based dermal flap (IBDF) technique allows for single-stage reconstruction of ptotic breasts post-mastectomy.
• This method provides inferior pole protection and a vascularized pocket for implant placement, potentially improving patient satisfaction.
• Concerns exist regarding potential infection from epithelial components within flap invaginations, necessitating safety comparison with standard techniques.

Purpose of the Study:

• To compare the safety and complication rates of immediate implant-based breast reconstruction using an IBDF versus standard reconstruction methods.
• To evaluate the hypothesis that the IBDF technique does not increase surgical complications.

Main Methods:

• A single-institution retrospective chart review was conducted for patients undergoing implant-based reconstruction between June 2016 and December 2020.
• Two cohorts were established: immediate reconstruction with IBDF and immediate reconstruction without IBDF.
• Patient demographics and surgical complications were recorded and compared between the two groups.

Main Results:

• A total of 208 breasts were analyzed (52 IBDF, 156 control); the IBDF cohort had a higher mean BMI (30.9 vs 26.5).
• No statistically significant differences in complication rates were observed between the IBDF and control groups for seroma, hematoma, wound dehiscence, flap necrosis, infection, or implant loss.
• Specific complication rates included: seroma (5.8% vs 3.8%), hematoma (3.8% vs 0.6%), wound dehiscence (0.0% vs 1.9%), mastectomy flap necrosis (11.5% vs 6.4%), breast infection (5.8% vs 7.1%), and implant loss (5.8% vs 5.8%).

Conclusions:

• Immediate implant-based reconstruction of ptotic breasts after mastectomy using an IBDF is a safe procedure with a similar risk profile to standard reconstruction.
• The IBDF technique facilitates a "one-stop reconstruction" for ptotic breasts, potentially reducing the need for sequential revisions.
• This approach yields optimal patient satisfaction and can be safely performed in the immediate post-mastectomy setting.