Breast sensibility after reconstruction: Comparison of different methods.

Background and objectives: Sensibility of the breast area is a key factor in quality-of-life evaluation after breast reconstruction (BR). Breast sensation can be assessed using numerous tools that are already largely described in the literature, including the Semmes Weinstein filaments which remain the most frequently used. Although different reconstruction techniques are available, post-BR sensitivity is rarely described. The aim of this study was to evaluate post-BR sensibility of the breast according to each reconstruction technique.

Material and methods: Fifteen patients were included in each group, i.e. 90 patients in total: before BR, Latissimus Dorsi (LD) flap with implant, LD flap with fat grafting, exclusive fat grafting, Deep Inferior Epigastric Perforator (DIEP) flap, implant. A single evaluator assessed the sensibility with Semmes Weinstein filaments testing 7 zones on both sides. The native breast was considered as control. Various potential confounding factors were collected.

Results: Patients who benefited from BR with fat grafting alone had a significantly better sensation of the reconstructed breast compared to the other groups (DIEP flap (P<0.0001), LD flap+implant (P=0.0013), LD flap with fat grafting (P=0.0073), implant (P=0.00315)). Comparing those results to the ones obtained in the group before reconstruction, only the fat grafting and DIEP flap groups showed a difference, the fat grafting group (P=0.0061) had higher sensibility whereas DIEP flaps were less sensitive (P=0.00233).

Conclusion: We compared mammary sensibility depending on the BR technique used. Our study is the first comparing breast sensitivity among all major breast reconstruction methods. Fat grafting resulted in better breast sensitivity in delayed breast reconstruction than implant or flap-based BR.