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J. M. Avelar and R. C. Ribeiro
Fig. 7.20 A 51-year-old patient underwent full lipoabdominoplasty without panniculus undermin­ing combined with mastopexy with mammary implant. Photos (a, c, e) before surgery operation; photos (b, d, f) after full lipoabdominoplasty with creation of the new umbilical region
The operation starts with two types of liposuction: a bilateral one on the full thickness of the panniculus on the submammary areas that have crescent-shaped demarcation where skin resection will be performed and a deep level one below the fascia supercialis and over all the areas presenting with localized adiposities (Figs.7.1b, c, and 7.2c). Only connective tissue and some perforator vessels remain attached to the musculoaponeurotic level. Usually, a depression may be noticed just below the submammary folds after full-thickness liposuction (Fig.7.2b). Through the same area below the breasts, deep liposuction is carried out on the lamellar layer (below the fascia supercialis) over all the regions presenting with localized adi­posities on the abdominal wall. The cannula must be introduced below the fascia supercialis, from the top downward (Figs.7.1b, c, and 7.2c) (Avelar 1999a, b).
After liposuction, full-thickness skin resection is performed bilaterally on the crescent-shaped areas. Usually, this operation doesn’t cause any bleeding, because no vessels are damaged. The remaining panniculus slides over the musculoaponeu­rotic level because no fat appears below the fascia supercialis, and all the perfora­tor vessels are preserved, which work as multiple pedicles to the abdominal panniculus. In selected cases, the plication of the musculoaponeurotic wall is per­formed when indications are present. Finally, the wound is sutured according to anatomical plans, where the fascia supercialis is the most important for reinstating
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the full thickness of the panniculus (Fig.7.2d). Afterward, the subdermal level and the dermis are sutured. The nal scar lies naturally on the submammary areas, which are postoperatively inconspicuous (Figs.7.3 and 7.4).
Upper and lower abdominoplasty is a type of combined procedure that is indi­cated when both segments (the superior and the inferior) of the abdomen need to be simultaneously repaired and is performed on patients presenting with a very high navel, which makes the transposition of the umbilicus impossible (Figs.7.14, 7.15,
7.16, and 7.17). This procedure requires adequate surgical demarcation before sur-
gery, and it should be carried out after meticulous measurement (Figs.7.14, 7.15,
7.16, and 7.17). The areas for skin resection are inferiorly marked on the suprapubic
region and on the superior abdomen; here, two crescent-shaped areas are drawn bilaterally below the submammary fold. Also, the areas for liposuction are marked on the abdominal wall.
The operation may be performed while the patient is under general anesthesia or is administered an epidural combined with local inltration. Two levels of local inltration must be carried out: a deep inltration on the supramuscular areas in all regions for liposuction and a supercial inltration on areas for skin resection. The solution is determined by each surgeon.
The rst step of the operation is to perform two types of liposuction: one on the full thickness of the panniculus where skin resection will be performed and one at deep level over all the areas presenting with localized adiposities (Figs.7.14 and
7.15). Afterward, the connective tissue and all the perforator vessels remain attached
to the musculoaponeurotic plane without any fat, which creates a depression on the suprapubic area and below the submammary fold.
Afterward, deep liposuction is carried out on the lamellar layer (below the fascia supercialis) on all the regions of the abdominal wall presenting with localized adiposities where skin resection will not be performed (Figs.7.15, 7.16, and 7.17), according to my previous publications (Avelar 1999a, b, 2000a, b). Also, preserving the areolar layer yields a smooth and harmonious surface to the areas where skin resection is not performed.
Following the operation, skin resection is carried out on the local depressions corresponding to the areas of liposuction performed on the full thickness of the pan­niculus. The remaining panniculus easily slides over the musculoaponeurotic wall because there is no fat below the fascia supercialis, and all the perforator vessels are preserved, which work as multiple pedicles to the abdominal panniculus. The plication of the musculoaponeurotic wall may be performed, and it is a useful pro­cedure during abdominoplasty if it’s part of the surgical plan or when indications show up on a computerized tomography (CT) scan (Fig.7.6). By following these technical steps, the nal scar will be smooth on the submammary sulcus and the suprapubic region (Figs.7.15, 7.16, and 7.17).
Full abdominoplasty is performed when there is an indication to perform con­ventional abdominoplasty because there are abnormalities on the superior and infe­rior segments of the abdomen, and the transposition of the umbilicus must also be performed. It is the most complex type of abdominoplasty without panniculus undermining and resection, in that it requires resecting the entire skin of the
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infraumbilical area. The complete description of this procedure appears in the following chapters (Figs.7.18, 7.19, and 7.20).
J. M. Avelar and R. C. Ribeiro
Discussion
Before performing any procedure for body contouring, the appropriate technique for the specic patient must be chosen. In fact, the decision to opt for upper and lower abdominoplasty is a matter of selection according to the correct criteria:
1. When a patient presents with only isolated accumulations of fat on the anterior
aspect of the abdominal wall without skin accidity or any other abnormality, isolated liposuction is the appropriate procedure.
2. In the case of accumulated fat on the anterior side of the abdominal wall plus
skin accidity with a redundant panniculus localized only on the lower segment of the abdomen that presents with a high navel implantation and without the enlargement of the musculoaponeurotic abdominal wall, the adequate technique is lower abdominoplasty combined with liposuction without reinforcing the abdominal muscular structures (Fig.7.11).When the patient presents with ac­cidity in the muscular wall, plication may be combined with lower lipoabdomi­noplasty (Figs.7.6 and 7.12).
3. If a patient presents with accumulated fat on the upper abdominal wall plus skin
accidity with redundant panniculus and without accidity in the musculoapo­neurotic abdominal wall, the appropriate technique is upper abdominoplasty (Figs.7.1, 7.2, 7.3, and 7.4).
4. When a patient presents with accumulated fat on the lower and upper abdominal
wall plus skin accidity with a redundant panniculus and with accidity in the musculoaponeurotic abdominal wall, the appropriate technique is lower and upper abdominoplasty combined with reinforcing the muscular wall (Figs.7.15 and 7.16).
5. In cases where the patient presents with indications for full conventional abdom-
inoplasty, the appropriate technique is full lipoabdominoplasty.
In early 1983, when I watched Illouz perform liposuction and I started perform­ing my rst operations, I noticed that the cannula worked in an unknown anatomical subcutaneous compartment of the abdominal wall. For this reason, I dedicated con­siderable research to the anatomy of the panniculus, even performing liposuction on cadavers, which yielded substantial knowledge about the area (Avelar 1986a, b, c,
1989). After performing some operations on the abdominal wall, I noticed that some
patients had unwanted redundant skin. To solve that problem, a new approach involving the resection of the excess skin combined with liposuction was developed (Avelar 1985a, b, 1986a, b, c).
Some complications, particularly seroma formation and other circumstances, dissatised me and my patients. Although I used to have a very high incidence of
7 Surgical Principles andClassication ofLipoabdominoplasty
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139
seroma formation after abdominoplasty, I never had any severe consequences dur­ing its treatment, which was performed via syringe aspiration once a week.
After a few years, I decided not to no longer perform both procedures simultane­ously (Avelar 1988). I also decided to look for a solution to those uncomfortable complications. I suspect that these problems could be solved by studying the anat­omy of the panniculus. Therefore, I dedicated considerable time to reviewing my previous anatomical dissections on cadavers and also my perioperative photos of my patients, hoping to nd a way to determine the cause of those complications. After some years, I concluded that I could perform liposuction with abdominoplasty because the perforator vessels would not be cut in this way, unlike what occurs when wide undermining is performed all over the abdominal wall. My conclusion was based on technical recommendations that liposuction must be performed on the lamellar layer when the perforator vessels are regularly preserved (Figs.7.7, 7.9, and 7.10) (Avelar 1999a, b, 2000a, b). In my publications, I recommended perform- ing abdominoplasty in association with liposuction without panniculus undermin­ing, which is the lipoabdominoplasty that would later performed and published by other authors (Erfon 2002; Leão 2000).
As my patients presented with wide variations in their respective accumulations of adiposities, I used to perform the combined operation to remove specic areas of localized adiposities, which allowed me to classify four types of abdominoplasty: lower, upper, lower and upper, and full.
Conclusion
The nomenclature of this classication is very useful in that the operation may be indicated and performed to repair the anatomical alterations on one segment, on the other segment, or on both. The correct choice of technique is essential because the selection determines the level of aesthetic improvement to all regions of the abdo­men as a whole. For this reason, each patient must undergo a physical examination to evaluate all their deformities as part of their surgical planning before undergoing abdominoplasty.
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J. M. Avelar and R. C. Ribeiro
Chapter 8
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Lipoabdominoplasty: Classication
JoãoErfon, ClaudioMauricioM.Rodrigues, andAleksandraMarkovic
Abstract Background: Since 2001, the author has been using a simple and didactic
classication, for patients who are candidates for liposuction and lipoabdominoplasty surgery, based on skin accidity, lipodystrophy, and diastasis of the rectus abdominis muscles and the extent of scars necessary for surgical correction, grouping patients into four groups, with the respective indication of the type of surgery for each group.
Methods: A retrospective study was performed evaluating patients who under­went abdominoplasty with liposuction and minimal undermining or only liposuc­tion from July 2001 to January 2021. A total of 2076 procedures were carried out with 1066 using liposuction only and 1010 lipoabdominoplasty technique. Eight hundred one patients were submitted to full lipoabdominoplasty, 112 were submit­ted to mini-lipoabdominoplasty, and 97 underwent mid-lipoabdominoplasty. The mean age of patients was 36.4 years. The mean weight of skin resection was
465.48g, and the mean volume of liposuction was 2578mL in the cases of lipoab­dominoplasty and 2886mL in the patients who were performed liposuction only.
Conclusions: The author concludes that lipoabdominoplasty was a great change to the abdominoplasty technique in the last 60years. Joining two great techniques (liposuction and abdominoplasty) with minimal undermining, preserving the main vascularization of the superior abdominal ap and the secondary vascularization of the lower abdomen lateral areas and skin resection in the central area up to the muscle fascia, permitting safe plication, improving the aesthetic results, and turning lipoabdominoplasty safer than the traditional abdominoplasty. The mid-lipoabdom­inoplasty is a new idea that when well indicated allows for safe surgery and more skin resection than in mini-lipoabdominoplasty.
Level of Evidence IV: This journal requires that authors assign a level of evi­dence to each article. For a full description of these Evidence-Based Medicine rat­ings, please refer to the Table of Contents or the online Instructions to Authors
www.springer.com/00266.
J. Erfon (*) · C. M. M. Rodrigues · A. Markovic ArtClinic, Fortaleza, Ceará, Brazil
Switzerland AG 2023 J. M. Avelar, R. Cavalcanti Ribeiro (eds.), Body Contouring,
https://doi.org/10.1007/978-3-031-42802-9_8
143© The Author(s), under exclusive license to Springer Nature
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J. Erfon et al.
Keywords Lipoabdominoplasty classication · Mid-lipoabdominoplasty · Minimal undermining · Supercial fascia · Safe plication · Secondary vascularization
Introduction
Since 2001, the senior author has been using the abdominoplasty with liposuction without undermining as described by Avelar (1999) to the cases of mini­abdominoplasty introducing resection of the supercial fascia and subcutaneous tissue on the central third of the lower abdomen (Erfon 2001). He later used the same idea to perform full abdominoplasty as recommended by Saldanha that also introduced the term lipoabdominoplasty (Saldanha et al. 2001). The author sug­gests, from the beginning, a simple and didactic classication, for patients who are candidates for this surgery, based on skin accidity, lipodystrophy, and diastasis of the rectus abdominis muscles and the extent of scars necessary for surgical correc­tion, grouping patients into four groups, with the respective indication of the type of surgery for each group: Group 1, liposuction; Group 2, mini-lipoabdominoplasty; Group 3, mid-lipoabdominoplasty; and Group 4, full lipoabdominoplasty (Table8.1). The author also suggests the possibility of safe plication and reducing the amount of supercial fascia and subcutaneous tissue to be preserved in the lower abdomen and the term mid-lipoabdominoplasty. He also developed his own mark­ings, dividing the lower abdomen into three areas: in the two lateral areas, the
Table 8.1 The author classied the patients to perform liposuction alone or lipoabdominoplasty into four groups: (a) G1, liposuction; (b) G2, mini-lipoabdominoplasty; (c) G3, mid­lipoabdominoplasty; and (d) G4, full lipoabdominoplasty
bc
8 Lipoabdominoplasty: Classication
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supercial fascia will be preserved, and in the central region, the skin resection goes up to the muscle fascia permitting a safe muscle plication without damage of the main and secondary vascularization of the abdominal ap. After the plication, there is no dead space and drains are not used. Another contribution was the partial trans­verse pubectomy that was introduced by the senior author. When comparing the aesthetic results using the lipoabdominoplasty with the traditional abdominoplasty technique, the aesthetic results are better, and the number of complications is reduced.
Methods
A retrospective study was performed in 2076 cases, where 2028 female patients and 48 males underwent lipoabdominoplasty, by the senior author from July 2001 to January 2021. Patients were classied into four groups: Group 1 (G1) patients with abdominal and/or ank lipodystrophy, without cutaneous accidity and without diastasis of the rectus abdominis muscles (Fig.8.1a–c); Group 2 (G2) patients with abdominal and/or ank lipodystrophy, with small supra-pubic skin accidity, the navel positioned so that it is impossible to lower the upper abdominal skin ap to the pubis, with or without diastasis of the rectus abdominis muscles (Fig. 8.2a–c); Group 3 (G3) patients with lipodystrophy of the abdomen and/or anks and skin sagging greater than in the previous group, including supra-pubic region or not, but with sagging on the sides of the lower abdomen, as well as supra-umbilical, as well as navel in an elevated position in the abdomen unable to lower the upper abdominal skin ap to the pubis, with or without diastasis of the rectus abdominis muscles (Fig.8.3a–c); and Group 4 (G4) patients with lipodystrophy of the abdomen and anks with great abdominal skin accidity, diastasis of the rectus abdominis
a
Fig. 8.1 G1. (a) Liposuction planning. (b) Kind of deformity with indication for liposuction. (c) Type of deformity with indication for liposuction (oblique view)