Department of Plastic Surgery, Ioannina University Hospital, Ioannina 45500, Greece.
© The Author(s) 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Aim: Abdominoplasty has gained in popularity due to the advances in concepts and techniques. The objective of this article is to present a modern abdominoplasty approach, which combines technical elements and evidence-based medicine, in order to achieve consistent aesthetic outcomes and high patient satisfaction rates while limiting the risk of complications.
Methods: A detailed description of the lipoabdominoplasty technique is presented. Liposuction of the trunk is combined with dermolipectomy of the anterior abdomen and rectus abdominis muscle plication in a standardized fashion.
Results: In this study, lipoabdominoplasty was performed on 93 patients. The mean hospital stay and time of drain removal were 1.2 and 8.1 days, respectively. The technique was associated with enhanced aesthetic outcomes, in terms of body contouring and definition, high satisfaction rate, and low rate of complications. Minor revisions were performed in 12% of cases, under local anesthesia.
Conclusion: Safe and consistent outcomes can be achieved by a meticulous lipoabdominoplasty technique, based on the accumulated evidence, thorough anatomical and surgical knowledge, and the artistic acumen of a plastic surgeon.
Abdominoplasty, liposuction, lipoabdominoplasty, high definition
Abdominoplasty presents one of the most popular aesthetic operations performed worldwide. This fact is attributed to the constantly improved outcomes achieved due to the evolution of the concepts and techniques applied[2-9]. Illouz in the 1990s supported the use of liposuction in combination with abdominoplasty. Matarasso proposed safe areas of liposuction during concomitant abdominoplasty, while Lockwood presented the high lateral tension abdominoplasty, using the Scarpa fascia to suspend the abdominal flap and thus decrease the tension of the skin closure. Shestak and Avelar presented similar techniques of abdominoplasty with liposuction, avoiding the flap undermining. In 2001, Saldanha et al. first used the term lipoabdominoplasty for his combined technique, which incorporated selective flap undermining. His results were corroborated by a following study in 2009, showing reduced incidence of complications and surgical revisions with lipoabdominoplasty compared to traditional abdominoplasty. In 2007, Hoyos et al.[10,11] presented the vibration amplification of sound energy at resonance (VASER) liposculpture technique for high definition of the treated areas, extending its use in abdominoplasty to expedite fat extraction, preserve vascularization, and enhance the aesthetic outcomes. Wall combined abdominoplasty with circumferential liposuction of the trunk, using a three-step standardized liposuction method, with the aim to optimize the flap blood supply and eliminate contour irregularities. Further modifications of the lipoabdominoplasty have been presented over the years.
The objective of this article is to present a modern abdominoplasty approach, which combines technical elements from the aforementioned techniques based on the available evidence, aiming to improve the long-term outcomes and patient satisfaction while limiting the risk of complications following abdominoplasty.
A thorough preoperative clinical examination and discussion is important. The indications for lipoabdominoplasty are not different from those of traditional abdominoplasty. Healthy patients with a stable weight for at least two months and a body mass index of less than 30 are the best candidates. Smoking should be stopped at least four weeks before surgery. Optimization of the body weight, diet, and exercise are also encouraged, delaying or cancelling surgery if necessary. The venous thromboembolism (VTE) risk is always assessed by means of the Caprini score.
With the patient standing, the abdomen is marked. First, a line connects the xiphoid with the anterior labial commissure. The lower abdominoplasty markings are delineated 6-7 cm superior to anterior labial commissure, exerting strong traction on the skin. From the central point, a 6 cm horizontal line is extended laterally and then 8 cm obliquely with 45 degrees of inclination on each side towards the iliac crest. The upper markings, based on skin pinch test with the patient bending forward, are outlined above the umbilicus centrally and arching laterally and checked and verified intraoperatively, before pannus excision. The lower incision markings are never adjusted intraoperatively.
The costal margins, rectus abdominis muscle origin and insertion, xiphoid, and inframammary folds are also marked as anatomical landmarks. The linea semilunaris and the areas in the flanks and dorsum to undergo liposuction are also outlined. “Shadow” areas for postlipectomy liposuction are marked below the costal margins and lateral to the lower insertion of the rectus abdominis muscle. The diastasis can also be marked in advance for better orientation.
Knee-high sequential compression devices are applied in the operation theatre (OR) and used until the patient is completely ambulatory. Measures to avoid hypothermia include the patient transfer to the OR covered with blanket, adjustment of room temperature, and use of only warmed intravenous fluids, wetting solution and betadine. Perioperative antibiotic prophylaxis is given before the induction of anesthesia and a bladder catheter is inserted while the patient is under general anesthesia and retained until patient mobilization.
All areas to be lipoaspirated are infiltrated with a solution containing 1 L lactated Ringer, 200 mg of lidocaine, 1 mg of epinephrine, and, recently, 1 g of tranexamic acid as well, adhering to the guidelines of the American Society of Plastic Surgeons. Infiltration to the point of tissue saturation is performed. The infiltration/aspiration volume ratio is 1-1.5:1, and a mean total infiltrate of 2-3 L is used.
The patient is placed first in a prone position for the liposuction of the back, flanks, and trochanteric areas with 4 and 5 mm standard angled cannulas, using the three-step SAFELipo technique consisting of separation, aspiration, and fat equalization. This process is repeated in the supine hyperextended position for the liposuction of the flanks, the suprapubic area, and the thoracoabdominal area superolateral to the flap. Enough fat of equally distributed thickness is maintained to avoid vascular impairment and contour deformities.
Abdominoplasty is started through the lower marking, elevating the flap in the sub-Scarpa plane, leaving a thin layer of fat and the loose areolar tissue above the deep fascia intact. On reaching the umbilicus level, the flap is split, and the umbilicus released from the flap. Dissection of the tunnel proceeds from the umbilicus to the xiphoid, extending conservatively laterally, in order to preserve as many of the superior perforators of the abdominal wall as possible, without compromising flap advancement. Diastasis repair is performed to the extent indicated, using a single #1 looped polydioxanone (PDS) suture running from the xiphoid down to the pubis.
Then, the excess abdominal skin is assessed by placing the patient in a semi-Fowler position (45°). The skin flaps are advanced medially and inferiorly, aiming to secure the flap with minimal tension. The excess skin is excised incorporating also the sub-Scarpa’s fat of the undermined flap. The midline is enhanced by a progressive continuous 0 polyglactin 910 (Vicryl) suture from the xiphoid down to the umbilicus. Several interrupted progressive tension 2-0 PDS or Vicryl sutures are also placed over each rectus fascia. Two drains are placed and sutured in the suprapubic area and left until daily drainage output is less than 30 mL. Closure is performed in layers, securing first the flap centrally, by placing a figure-8 2-0 PDS suture to the Scarpa’s fascia, also incorporating the rectus fascia. Closure then proceeds from lateral to medial, using 3-0 Monocryl sutures for the Scarpa’s fascia, taking the tension off the midline as described by Lockwood. Monocryl 3-0 suture is also used for the subcuticular suture. The umbilicus is exteriorized through a 2 cm × 1 cm opening of the skin 1.5-2 cm above the projected location of the umbilicus, in order to avoid excessive tension to the suprapubic area. Four 3-0 Monocryl cardinal stitches fix the umbilicus to the abdominal fascia and further dermal stitches complete the umbilicoplasty. Before completion of the closure, muscular definition can be enhanced performing additional liposuction, targeting the linea semilunaris and creating negative spaces (subcostal, suboblique, and pubic triangle) as described by Hoyos and Millard.
The wound is covered with Steri-strips, gauzes, and Micropore surgical tape (3M, St. Paul, MN, USA). A foam is placed over the abdomen and especially over the areas of superficial liposuction to help further flatten and define these areas. A binder is worn for 3 weeks and a compression garment for 8-12 weeks after surgery.
The patient is usually discharged the first postoperative day with instructions and scheduled outpatient visits for assessment and drain and suture removal.
This surgical technique, combining liposuction with abdominoplasty, was performed on 93 female patients with an average age of 38 years (20-67 years). No other concomitant procedures apart from liposuction were performed during the surgery. The mean hospital stay and time of drain removal were 1.2 and 8.1 days, respectively.
This lipoabdominoplasty variation was associated with enhanced aesthetic outcomes, in terms of body contouring and definition, high satisfaction rate, and low rate of complications and/or surgical revisions. Common complications of traditional abdominoplasty, such as wound dehiscence and necrosis, never occurred, while minor seroma with no further sequala occurred once. No cases of hematoma or deep venous thrombosis were recorded. Minor surgical revisions, due to dog ears or scar hypertrophy, were performed in 12% of cases, under local anesthesia.
Figure 1. A 36-year-old woman with BMI of 22 kg/m2 and four caesarean sections, who underwent lipoabdominoplasty, before (A-D) and nine months after (E-G) surgery. Notice the correction of the large diastasis and the definition of the abdomen, waistline, and back.
Figure 2. A 41-year-old woman with BMI of 21 kg/m2 who underwent lipoabdominoplasty, before (A-C) and one year after (D-G) surgery. Notice the diastasis and hernia repair and the definition of the abdomen, waistline, and back.
A plethora of abdominoplasty techniques have been used to address the anterior abdomen. Lipoabdominoplasty has transformed body contouring surgery, aiming not only to correct the musculofascial wall laxity and remove the excess skin and adipose tissue of the lower abdomen, but also to define the entire abdomen and flanks, enhancing the long-term aesthetic outcome. This technique is not simply the combination of liposuction with traditional abdominoplasty. It is a much wider concept, characterized by adequate preservation of the blood supply of the abdomen, focus on the pertinent anatomy, and use of relevant surgical algorithms and techniques to completely address each anatomical area and layer, namely excess skin and adipose tissue, rectus diastasis, inadequate abdominal, flanks, and waist definition, with safety and low complication risks.
The power of the lipoabdominoplasty technique has affected the aesthetic ideals towards a more defined abdominal contour, while the active and athletic modern lifestyle is literally mirrored to the applied techniques. Matarasso considered the flanks and the back as safe areas of liposuction based on Huger’s vascular anatomy of the anterior abdominal wall. Saldanha et al. showed improved aesthetic results incorporating liposuction of these areas to abdominoplasty. Hoyos and Millard analyzed the torso anatomy, visualized the changes induced by liposuction, in terms of natural superficial light and shadows, and applied his VASER abdominoplasty technique in a standardized fashion. In that respect, the waist is better defined and the waist-to-hip ratio ideal of 0.7 is approached.The “high definition” concept, although not universally accepted, can be applied with this technique in the anterior abdomen of both genders to achieve body sculpting and shaping.
Liposuction of the thoracoabdominal area, superior and lateral to the flap, debulks an area which is not treated by abdominoplasty alone. In fact, cannula undermining has substituted the traditional flap undermining, preserving the vascular supply of the abdominal flap, while permitting its debulking, without increasing the risk of necrosis or complications. Sozer et al. showed in a series of 1000 patients that applying widespread circumferential liposuction with standard abdominal flap undermining up to the costal margins is safe and associated with improved aesthetic results. Similar results, concerning safety and patient satisfaction, have been also reported following concurrently performing liposuction and abdominoplasty[18-20]. Roostaeian et al. conducted a prospective study in 18 patients, employing SPY fluorescent imaging (LifeCell Corp, Bridgewater, NJ), which showed that the rates of intraoperative abdominal flap perfusion or postoperative complications are not significantly different between lipoabdominoplasty and traditional abdominoplasty.
The technique presented herein, SAFElipo, accomplished the safety issue, in terms of the flap vascular supply. Suction is not used during the fat separation and equalization phases, which diminishes the risk of avulsion injury to the vessels. Fat equalization also minimizes the risk of contour irregularities by creating a layer of separated fat, which acts as a buffer zone during the healing phase. Consistent results can be achieved following the SAFELipo steps meticulously. Of note, our approach involves standard cannulas instead of the power-assisted cannulas by Wall or VASER system by Hoyos, exemplifying the importance of the technique and the surgical artistry instead of the device use.
Following the completion of liposuction, lipectomy is performed based on the principles set by
Contrary to the Saldanha’s technique with sub-Scarpa’s fat preservation, we prefer excision of most of this deep fat, reducing both the thickness of the flap and its metabolic needs, which also improves the blood supply. Swanson in 2015 used intraoperative laser perfusion imaging to show that the perfusion of the abdominoplasty flap following limited dissection abdominoplasty with sub-Scarpa’s fat preservation is not significantly different from that of full abdominoplasty with sub-Scarpa’s fat removal. Tourani et al. conducted an anatomic study, which showed that the lymphatic drainage of the lower abdomen lies superficial to Scarpa’s fascia and the transition to the infra-Scarpa fascial plane occurs within 2-3 cm of the inguinal ligament. Interestingly, a systematic review of four studies concluded that Scarpa’s fascia preservation is associated with significantly decreased seroma rate, drain output, time to drain removal, and hospital stay. In a meta-analysis, we showed that certain preventive measures, namely Scarpa’s fascia preservation, tissue adhesives, and use of progressive tension sutures (PTS), significantly reduce the seroma and infection rates, time to drain removal, and the length of hospital stay. Based on this evidence, we prefer to leave a thin layer of fat and the loose areolar layer above the deep fascia intact.
In addition, PTS, as first described by Pollock and Pollock, are used prophylactically to minimize the dead space and shearing forces between the flap and the underlying fascia. In their study of 597 consecutive abdominoplasty cases without drains, PTS use facilitated abdominal flap advancement, while the seroma rate was only 0.8%. Similarly, Antonetti and Antonetti reviewed 516 consecutive cases and showed that the adoption of PTS was associated with a dramatic decrease in the seroma rate (from 24% to 1.7%).
Apart from the technical aspects of abdominoplasty, consideration should also be given to VTE prophylaxis due to the inherited risks of operations. Increased intraabdominal pressure following muscle plication, binder use, and postoperative patient positioning and immobilization are known risk factors. In a recent review, obesity, circumferential procedures, and hormone replacement therapy were independent risk factors for VTE in abdominoplasty patients. These findings are corroborated by a previous systematic review of VTE risk in abdominal contouring procedures, which demonstrated that circumferential abdominoplasty and abdominoplasty performed in combination with intra-abdominal procedures had increased risk for VTE (3.4% and 2.17%, respectively). Abdominoplasty alone had the lowest rate (0.35%), which was doubled in abdominoplasty with concomitant plastic surgery procedures (0.79%). Based on this evidence, we avoid the routine combination of lipoabdominoplasty with other procedures. Furthermore, preoperative risk stratification based on the Caprini score is applied. A score greater than 7 or 8 necessitates chemoprophylaxis. Despite the concerns that chemoprophylaxis increases bleeding complications, recent studies refute this notion and support its use in the prevention of VTE risk[35,36]. Surgeons should choose VTE prophylaxis taking into consideration the patient and operative risk factors. Our VTE prophylaxis protocol also comprises preoperative patient optimization, compression stockings, and use of a sequential compression device intraoperatively and early ambulation postoperatively.
In conclusion, this paper presents a safe and efficacious variation of lipoabdominoplasty, using standard liposuction cannulas. Despite the marketing and innovations of liposuction devices, such as
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Seretis K. Applying art and science in lipoabdominoplasty: technical and safety considerations. Plast Aesthet Res 2021;8:51. http://dx.doi.org/10.20517/2347-9264.2021.71
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