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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_1054_Библиотеки_им_академика_М_И_Перельмана

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eral descending branch of the thoracodorsal ped­icle is identied, and dissection is carried out medial to it. The remaining branches are sacri­ced to allow rotation of the ap while the nerve branches are preserved to keep muscle function.
Intraoperative vascular pedicle injury is an uncommon complication. It is usually caused due to traction or inadvertent transection during the surgery. In situations of pedicle injury intraopera­tively, the ap can be converted into a free ap using the internal mammary artery as the donor vessels and subscapular vessels for vein graft (Figs.26.5 and 26.6).
S. Narayanan and K. K. Kabeer
Fig. 26.6 In-setting of the latissimus dorsi muscle ap on the chest wall within the mastectomy cavity
Fig. 26.5 Dissection of the latissimus dorsi muscle
26.9 Postoperative Care
It is advisable to use sealant dressings with a win­dow over the skin paddle to assess and monitor the viability of the ap. Monitor the temperature, appearance and capillary relling the ap. It is better to avoid any pressure dressing on the ap. Warms pads may be used to keep the ap well perfused. Some may contemplate the use of Glyceryl trinitrate to enhance perfusion. A pillow can be used to keep the arm abducted away from the axilla during the early postoperative days.
26 Dissection Guide forLatissimus Dorsi Breast Reconstruction
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Upper limb physiotherapy is of utmost impor­tance with a graduated scale to avoid shoulder stiffness. However, care should be taken to limit movement in the initial stages to avoid any unin­tentional injuries to the ap. The patient should be able to develop a full range of movement within 3–4weeks from the time of surgery [13,
14].
26.10 Postoperative Complications
Fluid collection at the donner site is the most common immediate postoperative complication in up to 76% of cases due to the massive space created during dissection [15]. Long-term suc­tion drains with quilting during closure has shown to reduce the rate of seroma. Once drains are removed, seromas can be dealt with aspira­tion and pressure dressings. Frequent aspirations should be avoided as they could lead to second­ary infections. However, extensive collections causing symptoms such as pain and discomfort due to the heaviness should be aspirated. In situ­ations with persistent seromas, surgical excision of the pseudo capsule and reclosure can be per­formed [16]. Some studies have shown the use of sealants into the cavity to reduce the rate of seroma along with sclerotherapy and steroid injections [1719].
Vascular comprise is an uncommon complica­tion with LDMF with its supply from the thora­codorsal artery. Flap necrosis is minimal even for those with risk factors such as tobacco use and diabetes. Hokin and Silfverskiold reported a 7% rate of partial necrosis. Signicant ap necrosis occurs when there is an intraoperative injury to the pedicle or when it twists on itself, leading to thrombosis with a 1% rate in total ap necrosis [6, 15].
Functional difculties such as shoulder and back tightness, weakness in grip, discomfort at the donor site, reduced power, inability to carry weights, numbness, leisure activities like swim­ming are known morbidities following LDMF. They can be managed to an extent with intense and prolonged physiotherapy [15].
Other complications noted as with other sur­geries are fat necrosis, hematomas and lymph­edema. Complications associated with the combination of autologous and implant-based surgery apart from those mentioned above are capsular contracture, animation deformity, high riding implants and subsequent distortion of the reconstructed breast occurring in 20–40% of patients [15]. Up to 8% of patients have seen implant extrusion, and 54% with capsular con­tracture [12].
26.11 Key Steps
• Make the skin incision around the marked
paddle, deepen the skin incision obliquely
towards the muscle.
• A subcutaneous pocket on the surface of the
muscle is developed using sharp dissection
superiorly to the level of the tip of the scapula
and posteriorly to the vertebral spines.
• Inferiorly the pocket extended to a point level
with the inferior to the level inferior costal
margin and anteriorly up to anterior border of
LD muscle.
• Superiorly start identifying the oblique supe-
rior border of the muscle, 1–2cm above the tip
of the scapula. Separate this border from the
trapezius which overlies the LD posteriorly.
The fascia is closely related to the
Thoracodorsal trunk in the axilla, so care
must be taken.
• Make a vertical incision in the fascia lateral to
the spinous processes where the trapezius
overlaps the fascial origin of the LD. This
frees the posterior attachment causing the
erector spinae muscles to bulge through the
incision.
• Divide the LD along the inferior margin of the
dissection pocket up to its anterior border
where it overlies the costal margin. Extend
this incision anteriorly across the musculoten-
dinous part of the muscle at the level of the
costal margin.
• Freeing the deep attachments done by dissect-
ing anteriorly on the deep surface of the mus-
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S. Narayanan and K. K. Kabeer
cle, starting from the divided thoracolumbar fascia at the posterior edge. Grasp this fascial edge and elevate it rmly. Several perforating branches of the intercostal and lumbar arteries are dealt with carefully.
• The interval between the serratus anterior and the LD is identied, and the LD is lifted carefully.
• A strong fascia binds the LD to the Teres major more anteriorly, which needs to be divided sharply. The fascia is close to thora­codorsal trunk so extreme care must be taken.
• The ap is now completely mobilised and transposed into the breast cavity through the axilla without twisting the pedicle.
• The LD ap is secured to the muscle to the chest wall medially and superiorly helps in maintaining the position of the ap.
Acknowledgments I would like to express my gratitude to Ms. Rasitha Farkath M, Bio Meidcal Engineer for her contribution to this chapter. Ms. Rasitha has created the illustrations incorporated in this chapter.
References
1. Maxwell GP. Iginio Tansini and the origin of the latissimus dorsi musculocutaneous ap. Plast Reconstr Surg. 1980 May;65(5):686–92. https://doi.
org/10.1097/00006534- 198005000- 00027.
2. Olivari N. The latissimus ap. Br J Plast Surg. 1976 Apr;29(2):126–8. https://doi.
org/10.1016/0007- 1226(76)90036- 9.
3. Schneider WJ, Hill H Jr, Brown RG. Latissimus dorsi myocutaneous ap for breast reconstruction. Br J Plast Surg. 1977 Oct;30(4):277–81. https://doi.
org/10.1016/0007- 1226(77)90117- 5.
4. Bostwick J, Vasconez LO, Jurkiewicz MJ. Breast reconstruction after a radical mastectomy. Plast Reconstr Surg. 1978 May;61(5):682–93. https://doi.
org/10.1097/00006534- 197805000- 00004.
5. Papp C, McCraw JB. Autogenous latissimus breast reconstruction. Clin Plast Surg. 1998 Apr;25(2):261–6.
6. Hokin JA, Silfverskiold KL. Breast reconstruction without an implant: results and complications using an extended latissimus dorsi ap. Plast Reconstr Surg. 1987 Jan;79(1):58–66.
7. Teymouri H, Stergioula S, Eder M, Kovacs L, Biemer E, Papadopulos N.Breast reconstruction with autolo­gous tissue following mastectomy. Hippokratia. 2006 Oct;10(4):153–62.
8. Blackburn NE, Mc Veigh JG, Mc Caughan EM, Kennedy RD, McIntosh SA, Wilson IM. The mus­culoskeletal consequences of latissmus dorsi breast reconstruction in women following mastectomy for breast cancer. PLoS One. 2018;13(8):e0202859.
https://doi.org/10.1371/journal.pone.0202859.
9. Sood R, Easow JM, Konopka G, Panthaki ZJ. Latissimus Dorsi ap in breast reconstruction: recent innovations in the workhorse ap. Cancer Control. 2018 Mar;25(1):1073274817744638. https://
doi.org/10.1177/1073274817744638.
10. Mathes SJ, Nahai F. Classication of the vascular anatomy of muscles: experimental and clinical cor­relation. Plast Reconstr Surg. 1981 Feb;67(2):177–87.
11. Greenall MJ.Is there any argument for delayed breast reconstruction after total mastectomy? Ann R Coll Surg Engl. 2007 Nov;89(8):754–6. https://doi.org/10.
1308/003588407X209509.
12. Kokosis G, Khavanin N, Nahabedian MY.Latissimus Dorsi musculocutaneous ap for complex breast reconstruction: indications, outcomes and a pro­posed algorithm. Plast Reconstr Surg Glob Open. 2019 Aug;7(8):e2382. https://doi.org/10.1097/
GOX.0000000000002382.
13. Russell RC, Pribaz J, Zook EG, Leighton WD, Eriksson E, Smith CJ. Functional evaluation of latissimus dorsi donor site. Plast Reconstr Surg. 1986 Sep;78(3):336–44. https://doi.
org/10.1097/00006534- 198609000- 00009.
14. Spear SL, Hess CL. A review of the biomechani­cal and functional changes in the shoulder follow­ing transfer of the latissimus dorsi muscles. Plast Reconstr Surg. 2005 Jun;115(7):2070–3. https://doi.
org/10.1097/01.prs.0000163329.96736.6a.
15. Delay E, Gounot N, Bouillot A, Zlatoff P, Rivoire M. Autologous latissimus breast reconstruction: a 3-year clinical experience with 100 patients. Plast Reconstr Surg. 1998 Oct;102(5):1461–78.
16. Roje Z, Roje Ž, Janković S, Ninković M. Breast reconstruction after mastectomy. Collegium antropo­logicum. Mar. 2010;34(supplement 1):113–23.
17. Motwani SB, et al. The impact of immediate breast reconstruction on the technical delivery of postmas­tectomy radiotherapy. Int J Radiat Oncol Biol Phys. 2006 Sep;66(1):76–82. https://doi.org/10.1016/j.
ijrobp.2006.03.040.
18. Shermak MA, Rotellini-Coltvet LA, Chang D.Seroma development following body contouring surgery for massive weight loss: patient risk factors and treatment strategies. Plast Reconstr Surg. 2008 Jul;122(1):280–
8. https://doi.org/10.1097/PRS.0b013e31817742a9.
19. Taghizadeh R, Shoaib T, Hart AM, Weiler-Mithoff EM.Triamcinolone reduces seroma re-accumulation in the extended latissimus dorsi donor site. J Plast Reconstr Aesthet Surg. 2008 Jun;61(6):636–42.
https://doi.org/10.1016/j.bjps.2007.03.019.
Autologous Reconstruction
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ofBreast
B.C.Ashok andDinakarSreekumar
27
Autologous breast reconstruction after mastec­tomy utilizes persons own tissue to build breast mound. Though it is a nonessential reconstruc­tion in terms of functionality and sustainability of life. It has shown to positively affect the mental and psychological status of patients.
The advantages of autologous reconstructions
are
• Reconstruction is done using patients own tissue.
• The new breast has more natural feel and appearance.
• Has opportunity to restore sensation to the breast and prevent lymphoedema.
• Withstands radiation better than implant based reconstructions.
• With time the new breast behaves like the other breast in terms of ptosis and consistency.
• As a by-product patients abdomen gets tight­ened (abdominoplasty effect).
B. C. Ashok (*) Department of Plastic Cosmetic Surgery, Manipal hospital Old Airport road, Bengaluru, India
Plastic surgery Manipal University, Manipal, India
D. Sreekumar Plastic surgery Resident (DNB), Manipal Hospital, Bengaluru, India
• There is no risk of implant related complica­tions like infections, capsule contractures, and ALCL.
It has its own disadvantages like
• Long surgery, longer recovery time [1]
• Flap related complications may delay adju­vant treatment.
• Some amount of donor site morbidity is expected.
• Microvascular expertise required when pedi­cled aps are not done.
• If there is radiation induced brosis of the new breast, then there is nothing to fall back on.
Generally there are two methods of autolo-
gous reconstruction of breasts, pedicled aps and free aps.
A pedicled ap is transferred to the defect while
still attached to the body by a pedicle carrying the blood supply. Pedicled TRAM [2] and Latissimus dorsi are the two aps used as pedicled aps. They are not popular and not routinely used because, pedicled TRAM has unreliable skin paddle leading to healing problems and it morbid to abdominal wall integrity. Latissimus dorsi has less volume, hence whole breast reconstruction is difcult only with latissimus except in small breasts and leads to some amount of shoulder dysfunction.
Free aps in breast reconstruction have gained
popularity, because of many choices they offer,
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023 S. V. S. Deo (ed.), Breast Oncoplasty and Reconstruction,
https://doi.org/10.1007/978-981-99-5536-7_27
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B. C. Ashok and D. Sreekumar
less donor site morbidity, and because of recent advances they have become safe, reliable, and reproduceable.
In recent times there has been interest in a third variety of reconstruction of breast by autol­ogous fat transfer. But it requires many stages to attain the desired volume, making it nancially unviable for many [9].
27.1 Free Flaps Used
inAutologous Reconstruction ofBreast
From the abdomen:
• DIEP: Deep inferior epigastric artery perfora-
tor ap.
• TRAM Flaps: Transverse rectus abdominus
Myocutaneous ap.
• SIEA Flap: Supercial inferior epigastric
artery ap.
From the Trunk:
• SGAP/IGAP: Superior/ Inferior gluteal artery
perforator ap.
• DCIA Flap: Deep inferior epigastric artery
perforator ap or Rubens ap.
From the Thighs:
• ALT: Anterolateral thigh ap.
• PAP: Profunda artery perforator ap.
• TUG ap: Transverse upper Gracilis ap.
27.2 Timing
Reconstruction can be done at the time of mas­tectomy (Immediate) or any time after the com­pletion of adjuvant therapy(delayed).
27.3 Advantages
• As a by-product patients abdomen gets tight­ened (abdominoplasty effect).
• The donor site morbidity (hernia, abdominal bulge) are less in DIEP.
27.4 Disadvantages
• Long surgery, longer recovery time.
• DIEP is a perforator based ap hence can have variable anatomy.
• Flap related complications may delay adju­vant treatment.
• Microvascular expertise required.
• If there is radiation induced brosis of breast then there is nothing to fall back on.
• Not possible if abdomen is scarred or in very thin individuals.
27.5 Anatomy
Tissue
Skin and fat from the lower abdominal wall. The reliable area crosses the midline. Zones 1, 2, and 3 are generally well perfused.
DIEP ap is a microvascular free ap utilises tissue from lower abdomen. It is the gold stan­dard in autologous reconstruction of breast against which all other types of reconstruction are compared and measured. DIEP stands for Deep Inferior epigastric artery ap [3]. Free TRAM is an earlier variant based on the same vascular axis. TRAM stands for Transverse Rectus Abdominus Myocutaneous ap.
All other aps are done only if DIEP is not available for any reason like scarring, very thin individual.
Innervation
Intercostal T11 and T12 dermatome via intercos­tal nerves. Not usually harvested as a sensory ap. There are some who encourage this, but the benet and outcome are unclear.
Blood Supply
The deep inferior epigastric artery and venae comitantes via perforators through the rectus muscle. The perforators range in size from
0.3mm to 1mm. Flaps can be harvested reliably on a single large perforator system.
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203
Artery
Large calibre artery from 2 to 4mms.
Vein(s)
The venae are typically paired, and often join to a common vessel at their draining point on the external iliac. One vein is usually larger and com­parable in calibre to the artery.
Pedicle Length
From the perforator point to the origin on the external iliac measuring 10–12 cms. Very long with signicant freedom to position Fig.27.1.
DIEP ap is harvested from lower abdomen from umbilicus to groin crease. Flap contains
II
I
Fig. 27.1 Holm’s vascular zones
IV
III
skin and fat and NO RECTUS MUSCLE.Blood supply for this ap is from perforators arising from deep inferior epigastric artery(DIEA). DIEA arises from external iliac artery at the groin traverses supero-medially towards the umbilicus, enters the rectus compartment lying behind the rectus muscle. This artery gives two sets of perforators one along the lateral border another along the medial border of rectus mus­cle. There are an average 4 perforators. The big­ger ones are the medial perforators nearer to the umbilicus. The whole ap can be based on one or two perforators. The veins follow the arterial system and drain into external iliac vein. There are two veins for most part of the course. Based on vascularity the ap is divided into four zones as below. Zone I is on the rectus muscle on the same side as the pedicle, zone II lateral to it on same side, zone III is on the rectus on the oppo­site side, zone IV is lateral segment on the oppo­site side [4]. Fig.27.2.
If only zone 1, 2, or 3 required then unilateral DIEA system is adequate. If one has to recruit zone 4 then opposite DIEA is also harvested and additional intra ap anastomosis or second anas­tomosis like supercharging is required.
TRAM ap is also based on same vascular axis but instead of dissecting the perforators, whole segment of rectus muscle along with underlying vessel is harvested. Based on how much muscle is spared, TRAM can be MS0 (muscle sparing) where whole width of a seg­ment of rectus is harvested. MS1 lateral third of muscle is spared, MS2 lateral two third of muscle is spread and MS3 where the whole muscle is spared (DIEP) Picture 27.1.
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Fig. 27.2 DIE Pedicle and perforators
B. C. Ashok and D. Sreekumar
Lateral perforators
Medial perforators
Deep inferior epigastric artery
Picture 27.1 Right- TRAM ap with muscle. Left- DIEP with perforator
27.6 Planning
Preoperatively a CT angiogram is helpful in visu­alising a suitable perforator and also to asses midline crossover and communication between supercial and deep inferior epigastric venous system [5]. An acoustic doppler can also be used to reconrm the perforator site on the skin.
Markings are done with patient standing. Upper border of ap is just above umbilicus (LINE1). Lateral extant is at anterior superior iliac spine Point A, B. The lower border is marked after a pinch test is done to see that abdo­men closes without undue tension (LINE2) Fig.27.3.
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LINE 1
205
In TRAM while elevating skin from lateral to medial direction, at lateral rectus boarder, anterior rectus sheath is incised and a segment of muscle just below umbilicus is taken along with the ap. Rest of ap harvest is similar to DIEP.
A
LINE 2
Fig. 27.3 LINE 1: Upper incision. LINE2 lower inci­sion. A, B: Anterior superior iliac spine
B
27.7 Harvest
Flap is harvested simultaneously while mastec­tomy is being done. Skin is elevated from lateral to medial direction and once the preferred perfo­rator is seen it is carefully traced through the rec­tus sheath and muscle to the parent DIE pedicle. The pedicle which lies on the posterior aspect of muscle is developed so as to facilitate tension free anastomosis. Care is taken not to injure seg­mental nerves which supply rectus muscle. The skin paddle of other side of hemiabdomen is ele­vated above rectus sheath. Sometimes supercial inferior epigastric vein is taken on the opposite side of vascular pedicle to improve venous drain­age. Rest of abdominal skin is undermined to facilitate tension free abdomen closure.
27.8 Recipient Area Preparation
The mastectomy cavity is prepared by creating inframammary crease and lateral mammary crease by taking 2-0 vicryl stitches. When inter­nal mammary vessels are used for anastomosis it is accessed by resecting fourth or fth costal car­tilage. Thoracodorsal pedicle can also be used as an alternative recipient vessels.
27.9 Flap Transfer
andAnastomosis
Flap is transferred and anastomosis is completed using micro vascular technique under micro­scope. Drains are placed and inset is done to cre­ate a breast mound.
27.10 Abdomen Closure
In DIEP, anterior rectus sheath is closed drains are placed umbilicus is relocated, abdomen is closed in layers. In TRAM ap the defect in rec­tus sheath is reinforced with a proline mesh, rest of closure is similar to DIEP ap Picture 27.2.
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Picture 27.2 Donor site after DIEP harvest
B. C. Ashok and D. Sreekumar
27.11 Post Operative Care
Flaps are monitored regularly for rst 5days for signs of vascular insufciency. Patients are kept warm, adequate hydration, anticoagulation,and early mobilisation are recommended Picture
27.3.
Picture 27.3 Post-op result after mastectomy and reconstruction with DIEP ap
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207
27.12 Complications
• Flap related: Partial or complete ap loss, haemorrhage, infections.
• Recipient site: Pneumothorax if IMA is used for anastomosis, seromas.
• Donor site: Haemorrhage, infections, sero­mas, delayed wound healing, hernia and abdominal bulge.
27.13 Secondary Procedures
Nipple areola is reconstructed after 6–9months after nishing radiotherapy. This is done under local anaesthesia nipple is done by various tech­niques but most common is C-V technique. Areola is created by tattooing [6]..
Opposite side symmetrisation or lipoll can
also be done for asymmetry and enhancing the aesthetics of breast but generally reserved till 6–9months is over and local tissue equilibrium is reached.
27.14 Recent Advances
Sensory restoration: Most aps yield insensate breasts. There have been attempts made to make these reconstructed breasts sensate by co-opting the sensory anterior (medial) cutaneous branch of the third or fourth intercostal nerve in the chest to either the 10th, 11th, or 12th sensory intercostal nerve branch harvested with the contralateral DIEP ap. [7].
Breast cancer related lymphoedema is devas-
tating consequence of axillary lymph node dis­section. This can be prevented by simultaneous transfer of vascularised lymph nodes at the time of reconstructing the breast. While harvesting DIEP a part of groin lymph node are harvested in continuity with the ap along with supercial cir­cumex iliac vessels. The ap is inset into the mastectomy defect in such a way that the lymph nodes lie in the axilla. A second anastomosis Is done between SCI vessels in the axilla. The transferred lymph nodes help in preventing development of lymphoedema [8].
Breast reconstruction using autologous fat transfer: advances in understanding fat transfer has let to attempts to reconstruct whole breasts using fat injections. The results have been encour­aging. The drawback is it needs multiple sittings, hence theatre time and other resources are to be considered to adopt this method [9]..
Bilateral reconstructions: Risk reduction sur­geries have increased the demand for bilateral reconstructions, achieving symmetry is much easy as both breasts are addressed simultane­ously. It is a major undertaking needing a good team. [10], [11], [12].
Acknowledgments Illustrations were created by Dr. Dinkar Sreekumar.
References
1. Panchal H, Matros E. Current trends in post­mastectomy breast reconstruction. Plast Reconstr Surg. 2017 Nov;140(5):7S–13S.
2. Knox ADC, Ho AL, Leung L, Tashakkor AY, Lennox PA, Van Laeken N, et al. Comparison of outcomes following autologous breast reconstruction using the DIEP and Pedicled TRAM Flaps: a 12-year clini­cal retrospective study and literature review. Plast Reconstr Surg. 2016 Jul;138(1):16–28.
3. He WY, El Eter L, Yesantharao P, Hung B, Owens H, Persing S, et al. Complications and patient-reported outcomes after TRAM and DIEP aps: a systematic review and meta-analysis. Plast Reconstr Surg Glob Open. 2020 Oct;8(10):e3120.
4. Lee K-T, Mun G-H. Perfusion of the diep aps: a systematic review with meta-analysis. Microsurgery. 2018 Jan;38(1):98–108.
5. Teunis T, Heerma van Voss MR, Kon M, JFMM VM.CT-angiography prior to DIEP ap breast recon­struction: a systematic review and meta-analysis. Microsurgery. 2013 Sep;33(6):496–502.
6. Satteson ES, Brown BJ, Nahabedian MY. Nipple­areolar complex reconstruction and patient satisfac­tion: a systematic review and meta-analysis. Gland Surg. 2017 Feb;6(1):4–13.
7. Beugels J, Cornelissen AJM, van Kuijk SMJ, Lataster A, Heuts EM, Piatkowski A, etal. Sensory Recovery of the Breast following Innervated and Noninnervated DIEP Flap Breast Reconstruction. Plast Reconstr Surg. 2019 Aug;144(2):178e–88e.
8. Forte AJ, Cinotto G, Boczar D, Huayllani MT, Lu X, Manrique OJ, et al. Lymph node transfer combined with deep inferior epigastric perforators and trans­verse rectus abdominis myocutaneous procedures: a systematic review. Gland Surg. 2020 Apr;9(2):521–7.