Anatomical findings from 28 breast specimens of female corpses have shown a thin horizontal fibrous septum, originating from the pectoral fascia along the level of the fifth rib, heading toward the nipple. This fibrous septum lies in between a cranial and a caudal vascular network, and being mesentery-like, it is responsible for the supply of the nipple areola complex. The cranial vascular sheet is supplied by the thoracoacromial artery and a branch of the lateral thoracic artery, whereas the caudal sheet is supplied by perforating branches from anastomoses of intercostal arteries. The fibrous septum is also a guiding structure for the main supplying nerve of the nipple. At its borders the septum curves upward into a vertical medial and lateral ligament, which attach the breast to the sternum and the lateral edge of pectoralis minor. These ligaments also contain a regular nerve and vascular supply. In their total, the fibrous septum and its ligaments form a sling of dense connective tissue that acts as a brassiere-like suspensory system. These two structures, the fibrous sling and the vascular and nervous membranes attached to it, are consistent anatomical findings, which have not been described before. Their knowledge could be of value and relevance in clinical application.

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BackgroundThe reasons for recurrent ptosis in mastopexy and breast reduction procedures are twofold. First, available surgical techniques do not reconstruct the normal breast anatomy responsible for maintaining breast shape. Second, in many instances the techniques rely on atrophied tissue to provide long-term support. The discovery in 1997 of the ligamentous suspension (the supporting system of the breast) gave rise to the concept that reconstruction of this anatomical structure was needed to ensure a sustained postoperative result. Applying the latest knowledge regarding the structural and vascular anatomy of the breast in the surgical technique and utilizing material other than atrophied breast tissue enabled us to prevent the recurrence of breast ptosis.MethodsA surgical technique was developed to replace the supportive function of a failed ligamentous suspension in 112 patients with ptotic breasts. This was done by reconstructing an internal breast-supporting system (IBSS) with biocompatible mesh.ResultsSatisfactory breast shape, nipple projection, and upper breast fullness was obtained with this technique in mastopexy patients with moderate-sized ptotic breasts. In patients with larger breasts good results were obtained with a simultaneous breast reduction. The longest follow-up is 6 years 3 months.ConclusionsWith this technique recurrent breast ptosis can be prevented in mastopexy and breast reduction procedures. The results are such that it eliminates the need for silicone prostheses to obtain satisfactory upper-breast fullness. The surgical technique is especially indicated in patients with skin of poor quality or patients with high expectations.