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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_591_Библиотеки_им_академика_М_И_Перельмана

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4 Sinder’s Technique: AUseful andSafe Approach forAbdominoplasty
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a b
c
d
Fig. 4.2 The rst incision is done on superior line of the surgical demarcations following pannicu­lus undermining up to the rib margin. (a) Scheme of the technique on right oblique view showing the superior ap is already undermined until costal margin; perioperative photo (b) one can see the superior incision was done passing through the umbilical region and the upper abdominal pannicu­lus starts undermining, with three triangular incisions around the umbilicus were done following Avelar’s technique; (c) the superior abdominal ap is already undermined with the umbilicus incised; (d) close up shows the triangular surface of the umbilicus according to the technique
s b
Fig. 4.3 The superior ap is already undermined until to reach the costal margin. (a) Perioperative photo demonstrates that the superior panniculus ap is pulled upwards showing the rib margin; (b) scheme shows the superior panniculus ap is undermined and pulled downwards indicating by arrows and the surgeon’s hand is placed on the raw area in order to pull it properly
1999a, b) in order to keep it in its natural position on the musculoaponeurotic wall
for its later reimplantation into the abdominal wall. Making an adequate evaluation of the panniculus resection is the main surgical principle introduced by Sinder, R. (1975a, b, c), which represents an important approach in that it avoids exerting excessive tension on the abdominal ap after the nal suture (Figs. 4.2a, 4.3b, and 4.4a).
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a b
Fig. 4.4 Traction of the superior abdominal panniculus ap and resection of the infra umbilical cutaneous area. (a) Diagram showing traction downwards of the superior ap to determine the adequate cutaneous incision on supra pubic region. The arrows indicate the direction of traction with a temporary stich on midline; (b) perioperative photo where one can see the raw area of the abdominal area after ressecção of the infra umbilical panniculus when reinforcement of muscular aponeurotic wall was done
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Fig. 4.5 Perioperative photos demonstrating creation and demarcation of the new umbilical region during abdominoplasty. Photo (a) one can see a temporary stitch is done on midline and the supe­rior segment of my surgical instrument is placed on the abdominal ap to demarcate the new umbil­ical area; (b) photo of my instrument with two segments articulated between them; (c) the arrow indicates the lower segment of the instrument placed on the umbilicus to project the new location of the umbilical area on the abdominal panniculus ap; (d) the new umbilical region is determined with three triangular aps; (e) close up of the new umbilical region one week after surgery
After properly resecting the infraumbilical panniculus, the plication of the mus­culoaponeurotic structures is conducted to reshape the body contouring. The umbi­licus is then reimplanted into the abdominal ap by employing my surgical instrument (Fig.4.5) (Avelar 1983).
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Fig. 4.6 Photos showing liposuction procedure on the supra umbilical panniculus during lipoab­dominoplasty through Sinder’s technique. Photo (a) Sinder’s incision was done passing through umbilicus and the supra umbilical ap is puling upwards; (b) the upper ap is then pulled upwards; (c) left prole view showing the upper abdominal panniculus is held by surgeon’s left hand and the cannula passes between his ngers with forth and backwards movements below fascia supercia­lis; (d) wide view from bottom showing the superior abdominal panniculus is lifted where one can see preservation of all perforator vessels
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Fig. 4.7 Photos perioperative showing preservation and elongation of the perforator vessels dur­ing lipoabdominoplasty performed through Sinder’s technique associated with Avelar’s method without panniculus undermining. Photo (a) a compass shows length of the perforator vessels; (b) under traction of the abdominal ap they elongate without any damage; (c) wide view of the upper abdominal area; (d) with a ruler and measurement of the vertical distance from umbilical to xyphoid process is about 20cm; (e) the lateral distance is about 14cm without any damage to the perforator vessels as it is the main surgical principle of Avelar’s method
However, I also used to employ Sinder’s technique, without panniculus under­mining (Avelar 1999, 2000a, b), but in combination with liposuction (Fig.4.6), which is also a safe surgical option. In such an associated procedure, the surgical demarcation is similar to that already described above, but the operation is per­formed without panniculus undermining, following previous descriptions (Avelar
1999, 2000a, b). The surgery starts by making cutaneous incisions into the umbili-
cus, followed by liposuction on the superior abdominal panniculus ap while pre­serving the perforator vessels, which is the essential surgical principle of my method (Figs.4.6 and 4.7). Resecting the infraumbilical panniculus is performed without undermining, as described in my original publications (Fig.4.8). The plication of the musculoaponeurotic wall is carried out while preserving the perforator vessels, which provides adequate vascularization to the remaining abdominal panniculus (Fig.4.9). The method to create this new umbilical region follows the descriptions above (Fig.4.10) (Avelar 1999, 2000a, b).
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Fig. 4.8 Perioperative photos demonstrating another procedure to demarcate the adequate level of the incision on supra pubic region for resection of the abdominal panniculus. Photo (a) using a forceps to hold the superior border of the panniculus to be resected; (b) with one hand the surgeon pushs it upwards as high as possible and with another hand the supra umbilical panniculus ap is pulling downwards to determine the safe position of the lower incision
a b
Fig. 4.9 Photos perioperatives demonstrating reinforcement of the muscular aponeurotic abdomi­nal wall during lipoabdominoplasty through Sinder’s technique. Photo (a) wide view of the raw area of the abdominal surface with plication is performed without any bleeding all over with pres­ervation of the perforator vessels; (b) close up of the umbilicus with its cutaneous surface triangu­lar shape (Avelar technique)
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a
bc d
e
Fig. 4.10 Photos perioperatives demonstrating demarcating the new location of the umbilicus on abdominal ap after reinforcement of the muscular aponeurotic abdominal wall during lipoab­dominoplasty through Sinder’s technique. Photo (a) a temporary stitch is done approximating the inferior border of the superior ap to the border of the supra pubic region with Avelar’s instrument introduced below the ap; (b) through the superior segment of the instrument the umbilical region is already incised creating three cutaneous small triangular aps; (c) close up of the umbilical region that it is possible to see the umbilicus underneath; (d) the umbilicus is already sutured to triangular aps coming from abdominal ap; (e) nal suture of the wound
Technique
Surgical planning is an essential step to take before any operation, even more when abdominoplasty is to be performed because several circumstances must be previ­ously evaluated. Measuring the anatomic references points of the abdomen is required to gain sufcient indications before an operation and to conclude the nal examination. All these preparations must be carried out during consultation, giving all the information to the patient about their operation.
Surgical Demarcation
Predemarcation is a useful procedure when the patient is already in the hospital and awake as long as it occurs before they have been given medication. When the patient is in the operating room under general or epidural anesthesia, the denitive marks are made. The lower line lies on the suprapubic region with lateral prolongation up to the iliac spine (Fig.4.1). Another curve line is made by passing by umbilicus with lateral prolongation until it has reached the end of the previous one. The umbilicus can also be demarcated by following Avelar’s technique (Avelar 1976a, b, 1979,
1983), which should be used to create a natural umbilical region while avoiding
leaving a circular scar around it.
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The Operation
Once the patient is under anesthesia the denitive demarcations are done following the previous ones. Local inltration is done with lidocaine plus epinephrine follow­ing the lines of demarcations to avoid bleeding during surgery. The operation starts by cutaneous incisions on the superior line until to reaches the muscular aponeu­rotic plan followed by panniculus undermining up to rib costal cartilage (Fig.2) as the original Sinder`s descriptions (1979).
This surgical stage may also be performed without panniculus undermining (Fig.4.6). The umbilicus is isolated by making triangular incisions around it by fol­lowing to my technique (Avelar 1976a, b, 1979, 1983). Once the upper abdominal ap has been detached, the surgical table must be bent so that the patient’s torso is elevated enough to carry out the next steps of the operation (Fig.4.2). A similar procedure is part of a surgery performed without panniculus undermining (Figs.4.7 and 4.8).
The surgeon pulls the upper undermined abdominal ap downward until it has reached the suprapubic region (Figs.4.3 and 4.4). Afterward, the inferior incision of the abdominoplasty is demarcated. Next, the infraumbilical panniculus is resected and careful hemostasis is carried out. Following the operation, the musculoaponeu­rotic wall is reinforced from the xyphoid process to the pubic region.
A temporary stitch is used suture from the upper abdominal ap to the lower edge on the suprapubic region (Figs.4.3b and 4.4a). Afterward, using my surgical instrument, the new location of the umbilicus is reached, at which point triangular incisions are made, creating three small aps to be sutured to the other three coming from the umbilicus (Fig.4.5) (Avelar 1976a, b, 1979). Moreover, when lipoabdomi­noplasty is performed by using Sinder’s technique, the perforator vessels are not damaged, which is the essential surgical principle of my method (Figs.4.7, 4.8, and
4.9) (Avelar 1999, 2000a, b) after the plication of the musculoaponeurotic wall has
been completed.
Next, the new umbilical region is demarcated by using Avelar’s surgical instru­ment, creating three small triangular aps on the abdominal ap (Fig.4.10), and the wound is next sutured as a part of a routine procedure.
Creating aTriangular Dermal-Adipose Flap
In thin people, the belly clearly has a peculiar supercial anatomy, with depressions or folds corresponding to the weakness of the rectus abdominalis muscle and mus­culoaponeurotic structures. Importantly, the supraumbilical area, called the linea albae (at the midline), contains very thin adipose layers. Here, the thickness of the subcutaneous layer of fat (adipose tissue) is not uniform, and it is thinner at the level of the umbilicus. To treat such a lack of adipose tissue, some surgeons (myself including) used to suture both sides of the borders to improve the tissue’s thickness.
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However, following Sinder’s technique, a triangular dermal-adipose ap is ade­quately prepared in the suprapubic region to embed it underneath the abdominal panniculus ap, which will expand its thickness. Quite often, the protuberance or salience at the level of the muscle masses, the suprapubic adipose tissue, or the mons pubis do not meet enough of the anatomic conditions to improve the thickness of the abdominal ap.
Instead of these resources, Sinder (1975a, b) prefers to prepare a suprapubic triangular dermal-adipose ap with an inferior pedicle at the beginning of the operation, and after the musculoaponeurotic plane has been sufciently rein­forced, he imbeds it underneath the medial part of the large lowering ap, initially corresponding to the supraumbilical region called the linea albae. Finally, the bor­der of the upper abdominal ap is sutured to the inferior edge of the suprapubic incision. The triangular dermal-adipose ap is introduced underneath the pannicu­lus of the abdominal ap to yield a smooth result (Figs.4.5 and 4.10). The aes­thetic results are similar if the abdominoplasty is performed by using Sinder’s technique with a wide undermining of the abdominal ap or if it is carried out without panniculus undermining. The advantages of each method are similar (Figs.4.11, 4.12, and 4.13).
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Fig. 4.11 A 49-year-old patient underwent abdominoplasty through Sinder’s technique, combined with secondary mastopexy. Photos (a, c) pre-operative; (b, d) after operations. The triangular dermo adipose ap according to Sinder’s technique was created on supra pubic region to provide adequate support to the abdominal ap; (e) close up in frontal view of the umbilical region created through Avelar’s technique; (f) the same umbilical region in left oblique view shows the surgical result with natural appearence
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Fig. 4.12 A 51-year-old patient with unaesthetic and deep surgical scars on supra pubic region underwent abdominoplasty according to Sinder’s technique, combined with mastopexy without prosthesis implant. Photos (a, c) pre-operative; (b, d) 6months after operations. The new location of the umbilicus was determined following Avelar’s technique. A triangular dermo adipose ap was created following Sinder’s technique and imbedded underneath of the panniculus of the abdominal ap
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Fig. 4.13 A 48-year-old patient with deep and unaesthetic surgical scars on supra pubic region and on the umbilicus as well, underwent abdominoplasty by Sinder’s technique, Photos (a, d) pre­operative showing unaesthetic scars on supra pubic region and on umbilicus as well; (b, c, e) post­operative photos. A triangular dermo adipose ap was created according to Sinder’s technique and imbedded it underneath the panniculus of the abdominal ap. The new umbilical region was cre­ated following Avelar’s technique achieving natural and harmonious aesthetic appearance
Discussion
At the beginning of my career, I used to employ Pitanguy’s technique (Figs. 4.14 and 4.15) as a continuation of the useful knowledge that I absorbed from the author (Pitanguy 1967, 1974; Pitanguy et al. 1974). However, as soon as I learned Sinder’s technique, I started using it. Especially in patients with a accid or voluminous abdomen, it is helpful for planning and operating by leaving a horizontal scar on the suprapubic region. When I introduced lipoabdominoplasty (Avelar 1999, 2000a, b), I could perform a similar procedure with wide abdominal panniculus undermining
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a
b
Fig. 4.14 Wide panniculus undermined during abdominoplasty performed by Pitanguy’s tech­nique. Diagram (a) shows wide undermining of the abdominal panniculus with severe diastasis of the rectus abdominalis; (b) after reinforcement of the musculo-aponeutic wall; (c) perioperative photo where one can see the abdominal ap already undermined is pulled upwards showing the triangular surface of the umbilicus according to my personal technique; (d) the arrow indicating the triangular surface of the umbilicus according to the technique
ab c
Fig. 4.15 Traction of the panniculus during abdominoplasty performed by Pitanguy’s technique. Diagram (a) the arrows indicate traction and rotation of the abdominal panniculus from back for­ward, showing the triangular incision on the umbilical area; (b) perioperative photo where one can see the ap pulled from up downwards with resection of the excess of the abdominal panniculus being resected with knife; (c) photo in detail showing the three triangular small aps of the umbi­licus according to Avelar’s technique
(Figs.4.2, 4.3, 4.4, and 4.5) or without panniculus undermining (Figs.4.6, 4.7, 4.8,
4.9, and 4.10). However, when there is poor elasticity and less accidity in the
supraumbilical region, some difculty may be encountered when bringing the upper abdominal ap to the suprapubic edge of the incision. If the suture is made under strong tension, it risks causing dehiscence in the central part of the wound and other complications. To avoid this risk, Sinder (1975a, b) introduced new concepts to abdominoplasty without any difculty or excess tension in the suture of the opera­tory wound. If this is not the case, the inferior incision of the skin to be resected should be dislocated more upward in order to avoid excess tension in the suture (Figs.4.11, 4.12, and 4.13).
When the accidity and/or excess of the skin is located in the infraumbilical por­tion or when there is little elasticity in the supraumbilical skin, Sinder’s technique (1975a, b) is a useful approach. Sinder (1979) prefers to perform a simple suprapu­bic horizontal crescent-shaped resection with cranial concavity and without trans­posing the navel, as suggested by Jolly (1911) and Thorek (1942). In fact, the transposition of the umbilicus was introduced by Vernon (1957), which opened up a new era for abdominoplasty. If the navel is abnormally high, the umbilical pedicle
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is cut to its depth or to the aponeurotic xation, and without any skin incision around it, a new navel xation is lowered into position, according to normal anatomy (Callia
1965). This technique is described in detail in Chap. 12.
Conclusion
Sinder’s technique is a very useful and safe approach for performing abdomino­plasty. The operation starts by making an incision into the superior border of the area to be resected and according to the surgical plan (Figs.4.1, 4.2, and 4.3). The superior panniculus is then undermined on the supra-aponeurotic level until it has reached the border of the rim’s costal cartilage. Meticulous hemostasia must be caried out (Fig.4.4b). At this time in the operation, bend the surgical table such that the extension of the resection of the lower panniculus can be properly evaluated. After correct demarcation, the panniculus of the infraumbilical region is removed, and the new umbilical region is marked by using my surgical instrument (Fig.4.5) (Avelar 1976a, b, 1983). A similar procedure may be performed for a type of lipoab- dominoplasty where the abdominal panniculus is not undermined, which is the basic surgical principle of this method (Figs.4.6, 4.7, 4.8, 4.9, and 4.10). If the patient already has some abdominal scars caused by previous surgeries, then, depending their location and size, use Sinder’s technique to determine the adequate placement of the nal surgical scar (Figs.4.11 and 4.12).
At the beginning of an operation that uses Sinder’s technique, a suprapubic trian­gular dermal-adipose ap with an inferior pedicle should be prepared to embed it underneath the medial part of the abdominal panniculus ap. The behavior of the dermal-adipose ap replaces the thickness of the supraumbilical zone, or the linea albae.
References
Avelar JM (1976a) Umbilicoplasty– a technique without external scar (Umbilicoplastia uma téc-
nica sem cicatriz externa). 13rd Bras Cong of Plast Surg and First Brazilian Cong of Aesthetic
Surgery. (13° Congresso Brasileiro de Cirurgia Plástica e 1° Congr Bras Cir Estética), Porto
Alegre– RS (Brazil) 81–82 Avelar JM (1976b) Umbilicoplasty - A technique without external scar. Cahiers de chirurgie
Esthétique. Journees internationals de Chirurgie Esthetique. Vendredi 21 mai. Avelar JM (1979) Umbilical scar– its importance and technique for creating during abdomino-
plasty (Cicatriz umbilical– da sua importância e da técnica de confecção nas abdominoplas-
tias). Rev Bras Cir 1(2):41–52. Avelar JM (1983) Abdominoplasty: technical renements and analysis of 130 cases in 8 years’
follow-up. Aesth Plast Surg 7:205–212. Avelar JM (1999) Uma nova técnica de abdominoplastia– sistema vascular fechado de retalho
subdérmico dobrado sobre si mesmo combinado com lipoaspiração (A new technique for
abdominoplasty – closed vascular system of subdermal ap folded over itself combined to
liposuction). Rev Bras Cir 88/89(1/6):3–20.