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01.08.2010 | Original Article | Ausgabe 4/2010 Open Access

Aesthetic Plastic Surgery 4/2010

Inferior Pedicle Autoaugmentation Mastopexy After Breast Implant Removal

Zeitschrift:
Aesthetic Plastic Surgery > Ausgabe 4/2010
Autoren:
Johannes Franz Hönig, Hans Peter Frey, Frank Michael Hasse, Jens Hasselberg
In patients who would like a reposition augmentation mammaplasty after breast implant removal but reject the use of a new implant after implant removal because of capsular contracture, autoaugmentation mammaplasty using a deepithelialized inferior-based flap of subcutaneous and breast tissue is an option. It corrects ptosis and increases the projection and apparent volume of the breast when mastopexy is planned without implantation of a new breast implant.
In this article a method and follow-up of autoaugmentation mammaplasty is evaluated using a deepithelialized inferior-based flap of subcutaneous and breast tissue modularized to its pedicle which is inserted beneath a superior pedicle used to correct of ptosis and increase volume of the breast after implant removal. This procedure is suitable for patients who would like a reposition augmentation mammaplasty but do not want a new breast implant after implant removal for capsular contracture.

Patients and Method

Between 1999 and 2007, a total of 27 patients (age 54 ± 7.3 years) underwent an uplift only following breast implant removal with augmentation mammaplasty. Among them were 11 smokers. Subglandular implants were noted in 19 of the 27 patients. All patients underwent a thorough, individualized, preoperative evaluation to establish a correct diagnosis, to evaluate asymmetries and implant configuration by MRI, to exclude implant ruptures and malignancies, to estimate the degree of tissue repositioning, and to decide on the level of the new nipple position.
In all patients, the distances between the nipple and the sternal notch (N-SN), between the nipple and the inframammary fold (N-IMF), and the intermammary distance (IMD) were measured preoperatively at 6 and 12 months (Table 1). The surgical outcome was evaluated according to the analysis obtained before and after surgery and reviewed (Fig. 1). In addition, an independent evaluation of the results at 1 year after the operation on a four-point scale (excellent to poor) was performed. After clinical examination, photographs were taken 6 and 12 months after surgery and reviewed by two residents. The judges reviewed the images independently and recorded the measurements. The results were semiquantitated and a mean score was calculated.
Table 1
Pre- and postoperative evaluation of the NAC position (N = 17)
Distance
Preoperative
6 Months postoperative
12 Months postoperative
N-SN
25.2 ± 0. 9 cm
20.2 ± 0.7 cm
21.3 ± 0.6 cm
N-IMF
9.3 ± 0.8 cm
7.1 ± 0.7 cm
7.3 ± 0.3 cm
IMD
18.4 ± 1.1 cm
18.0 ± 0.9 cm
18.2 ± 0.7 cm
N-SN distance between the nipple and the sternal notch, N-IMF distance between the nipple and the inframammary fold, IMD intermammary distance

Surgical Techniques

These procedures have been performed routinely under general anesthesia, with local anesthesia infiltration for homeostasis. Infiltration of the area was performed with a vasoconstricting solution consisting of a dilution of 1 ml of epinephrine in 1000 ml of normal saline. Markings were performed preoperatively with the patient in a standing position [1] (Figs. 2, 3). Once the decision had been made to proceed with mastopexy following explantation of the breast implant without reimplantation, the correct new nipple position was determined. Establishment of the new nipple position was the most important step. After a previous breast augmentation, the nipple may be too high, too low, or just right. Therefore, precisely establishing the new nipple position before explantation was tricky due to the anticipated decrease in breast volume. The nipple position was estimated by measuring the proposed new nipple position from the fixed point of the suprasternal notch (SSN). The final nipple position was established after explantation and reconfiguration of the breast tissue with the patient sitting up at 90° on the operating table.
The breast tissue was reconfigured to produce the best possible shape by narrowing the base dimension and position of the breast. This usually entails central transposition of tissue. This was achieved using a superior pedicle mastopexy technique with a deepithelialized inferior-based flap of subcutaneous and breast tissue as a foundation on top of which the superior nipple-areola (NAC) complex was seated (Figs. 4, 5, 6, 7, 8, 9).
The inferior pedicle was drawn 5–6 cm wide, 2–4 cm long below the NAC, and not less than 2 cm thick (Figs. 4, 5, 6). After deepithelialization of the periareolar and the pedicle area, the marked flap was incised. After removing the encapsulated implant without achieving a complete capsulectomy and undermining the parenchyma toward the upper pole, the inferior deepithelialized pedicle was raised and the subcutaneous tissue as well as the breast parenchyma of the central lower breast was folded up underneath the nipple and areola to maximize upper-breast volume (Figs. 7, 8). It is critical to optimize upper-pole fullness and projection of the breast using the inferior pedicle. Therefore, it is helpful to incise the deepithelialized dermis at the base of the inferior pedicle, allowing the flap to be mobilized upward (Fig. 6). After flap mobilization, the pedicle, with its inner lined capsular tissue, was fixed to the fibrotic capsule tissue on the chest wall (pectoralis major muscle fascia) without any restriction behind the NAC (Fig. 8). After the flap was tacked to the chest wall with 2 × 0 PDS sutures, closure of the medial and lateral pillars over the flap optimized upper-pole fullness (Fig. 9). Closure of the periareolar incision was performed by means of a round block technique using a purse string suture as described by Hammond et al. [2].

Results

The median observation time was 13 ± 2.1 months. Immediate healing was achieved without complications, adverse reactions, or side effects. All patients healed uneventfully without any postoperative problems. No swelling or seromatous fluid collection necessitated a second procedure or prolonged drainage. No partial or total necrosis of the nipple and no hypertrophic scarring were detected. The aesthetic results were considered good to excellent in 23 cases and satisfactory in 4 cases (Fig. 10). The contour results were stable in long-term follow-up evaluation (Figs. 1113).
Table 2
Pre- and postoperative evaluation of the nipple (N) and inframammary fold (IMF) position (N = 27)
Distance
Preoperative
6 Months postoperative
12 Months postoperative
N to Y
4.2 ± 3.2 cm
1.3 ± 2.1 cm
1.6 ± 1.8 cm
IMF to Y
5.8 ± 2.2 cm
4.5 ± 1.8 cm
4.9 ± 1.7 cm
Level of nipple (N) and level of the inframammary fold (IMF) to Y measured in the lateral view in a series of autoaugmentation mammaplasties before and after surgery. Y is the midpoint between the tip of the acromion and the lateral epicondyle minus 1 cm
After 6 and 12 months postsurgery, the degree of descent of the IMF generally parallels that of the nipple (Table 2). The mean level of the inframammary fold was below the mean level of the nipple. Postoperatively, the optimum distance had been largely achieved. There was a descent of the IMF and of nipple projection as whole-breast ptosis proceeded (Table 3). In addition, the pedicle allows elevation of the IMF and reduction of the base.
Table 3
Pre- and postoperative evaluation of the nipple projection (N = 27)
Distance
Preoperative
6 Months postoperative
12 Months postoperative
Npr to Ch = z
4.6 ± 1.2 cm
5.2 ± 1.1 cm
4.9 ± 0.6 cm
Projection of nipple (Npr) to a perpendicular line of the chest (Ch) wall in patients standing erect in a series of autoaugmentation mammaplasties before and after surgery. z = distance from nipple to chest wall

Discussion

The goal of autoaugmentation mammaplasty using an inferior pedicle is to give volume to the breast again after implant removal without reimplantation or in cases of breast reduction. Using an inferior pedicle as first described by Ribeiro [3, 4] in reduction mammaplasty, the volumetric transfer of the back of the central pedicle will augment breast projection, especially after implant removal. With this procedure, breast tissue is taken from the area where there is excess to the area where there is a deficit. Thus, the pedicle works as an auto (natural) breast prosthesis and also provides good vascularization of the lower portion of the breast.
The inferior pedicle not only has the advantage of a conization effect from vertical reduction of the technique described by Lassus [5], Marchac and de Olarte [6], Lejour [7], and later modified by Mottura [7], it also allows shifting of the pedicle tissue under the central parenchyma of the breast behind the NAC to the area that is usually loose and empty [1, 3, 4, 813].
From a vascular point of view, the dermoglandular inferior pedicle allows better lateral and medial reshaping than do superior-based flaps [12, 13]. This is because the inferior-based flap originates from a dermolipoglandular pedicle that is based on the fourth, fifth, and sixth intercostals perforating vessels of the internal mammary vessel. Even the dermis of the flap can be divided, as long as the inferior portion of the transversely oriented septum of the breast is not violated, because the perforators are located along the septum [14].
Despite the fact that the Ribeiro inferior pedicle is a widely used procedure in reduction mammaplasty, it has been criticized as being prone to “bottoming out” [810, 1416]. To obtain a predictable and long-lasting stable breast shape by avoiding bottoming out, fixation and retention of the flap to the chest wall are imperative. Therefore, efforts to prevent bottoming out have involved variations in the suspension of the inferior pedicle [8, 1418]. Daniel [17], de Cerqueira [18], Graf and Biggs [8], Hinderer [19], Caldeira and Lucas [20], Fontana and Muti [21], and Gracia Padron [22] all have described chest wall-based flaps passed through loops of the pectoralis major muscle with good effect. We believe the same effect can be achieved with much less effort in patients with capsular contracture who reject insertion of new implants by suturing the pedicle, with its inner-lined capsular tissue, to the thick fibrotic capsule tissues on the chest wall after implant removal so that the inner surfaces of the capsular tissue are faced and sutured together. Once the “fibrosis” of the sutured capsular tissue is established, the entire pedicle is expected to maintain its position. This avoids the bottoming out because the flap is attached to the solid capsular tissue, and also the weight of the remaining breast is reduced. Thus, this allows elevation of the inframammary fold and reduction of the base, as our results confirmed. By suturing the lateral and medial glandular edges in three layers and the base of the gland over the pedicle, the areola will gain additional projection.
To achieve aesthetically pleasant pole fullness, a long volumetric pedicle is almost always needed in reaugmentation mammaplasty when autoaugmentation mammaplasty is planned without an implant. Therefore, the volume of the inferior pedicle depends on the distance between the areola and the inframammary fold. The inferior pedicle’s upper limit is 1 cm below the inferior edge of the areola. The distance between the lateral and medial borders of the breast pillars and the base of the pedicle, which extends to the inframammary crease, defines the size of the flap, which is approximately 6–8 cm wide and 4 cm thick.
Compared to a superior pedicle flap or a McKissock [23] flap, which is folded on itself, the inferior pedicle has the disadvantage in that in cases of a short pedicle, it cannot be folded on itself. Therefore, the milk ducts will not recanalize because the deepithelialized dermoglandular surface is in contact with the pectoralis major fascia. Compared to the lateral pedicle with its limited recruitment of tissue which is advocated in some cases in reduction mammaplasty procedures for autoaugmentation [24], the inferior pedicle is designed to give better breast shape with upper-pole fullness and more volume, which is imperative in reautoaugmentation after implant removal without using a new implant. Ribeiro’s technique, an inferior pedicle flap rotated in the upper pole, provides improvement in upper-breast fullness in autoaugmentation mammaplasty, as our results confirmed.
To stabilize the shape and the size of the areola, which is mandatory, we use a round block suture, as described by Hammond et al. [2]. In combination with this pedicle, this provides a conical shape to the breasts with good projection and gives good long-term results.
We believe that the autoaugmentation mammaplasty procedure is suitable for patients who would like a repositioning or reaugmentation of their breasts with autogeneous tissue, thereby avoiding insertion of a new implant. The technique described here can be used with standard inverted T incisions, vertical incisions with short incision components, or pure vertical incisions. Depending on the patient’s desires and volume of the breast, a bipedicle flap can also be used for reautoaugmentation in certain cases, especially when reaugmentation has been performed through inframammary and periareolar incisions.

Conclusion

Autoaugmentation of the breast can be achieved following implant removal when mastopexy is planned without insertion of a new implant. This procedure corrects ptosis and increases the projection and apparent volume of the breast. The advantages of the technique are that it both minimizes the skin scar and optimizes the shape following upper-pole fullness and suture fixation of the pillars of the breast parenchyma. In addition, autoaugmentation mammaplasty is a good technique for patients desiring only an uplift following breast implant removal.

Open Access

This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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