Free flap breast reconstruction | |
---|---|
Specialty | plastic surgeon |
Free-flap breast reconstruction is a type of autologous-tissue breast reconstruction applied after mastectomy for breast cancer, without the emplacement of a breast implant prosthesis. As a type of plastic surgery, the free-flap procedure for breast reconstruction employs tissues, harvested from another part of the woman's body, to create a vascularised flap, which is equipped with its own blood vessels. Breast-reconstruction mammoplasty can sometimes be realised with the application of a pedicled flap of tissue that has been harvested from the latissimus dorsi muscle, which is the broadest muscle of the back, to which the pedicle (“foot”) of the tissue flap remains attached until it successfully grafts to the recipient site, the mastectomy wound. Moreover, if the volume of breast-tissue excised was of relatively small mass, breast augmentation procedures, such as autologous-fat grafting, also can be applied to reconstruct the breast lost to mastectomy. [1]
In surgical praxis, the abdomen is the primary donor-site for harvesting the tissues to create the free flap, because that region of the woman's body usually contain's sufficient (redundant) adipocyte fat and skin -tissues that are biologically compatible and aesthetically adequate for the construction of a substitute breast. The secondary donor-sites for harvesting adipocyte and skin tissues to create a free flap are the regions of: (i) the gluteus maximus muscles, (ii) the medial thigh, (iii) the buttocks, and (iv) the waist of the woman's body.
The clinical advantage of the free-flap breast reconstruction procedure is avoidance of the medical complications—infection, malposition of the breast implant(s), capsular contracture—which occasionally occur consequent to breast-reconstruction surgery procedures that emplace breast prostheses to the mastectomy wounds. In which cases, the correction of such medical complications might surgically require either the revision (rearrangement) or the explantation (removal) of the breast implants.
For the woman, the anatomic, aesthetic, and psychologic advantages of a free-flap reconstruction procedure are the natural shape, texture, and appearance of the reconstructed breast, and the fact that it will undergo the same biological changes that are natural and normal to the woman's body as she ages; the breast reconstructed with autologous tissues will not remain unnaturally youthful, as would be the case with a breast-implant reconstruction procedure.
The clinical disadvantages of free-flap breast reconstruction surgery are: (i) the technical complexity of the plastic surgery procedure, (ii) prolonged surgical operation times, (iii) additional, secondary scarring at the flap-tissue donor site, (iv) possible medical complications at the flap-tissue donor-site, and (v) possible necrosis of the tissues harvested to create the free-flap. [2]
Therapeutically, the free-flap breast reconstruction procedure is always possible after radiation oncology for the treatment of breast cancer. Technically, an autologous-tissue breast reconstruction is a good resolution to a failed breast-implant reconstruction. [3]
The Transverse Rectus Abdominis Myocutaneous free-flap, created from the transverse abdominal muscle, is a breast reconstruction flap harvested from the abdomen of the woman. The TRAM flap is composed of skin, adipocyte fat, and the musculus rectus abdominis, which is perfused (irrigated) by the deep inferior epigastric artery and by the deep inferior epigastric vein. Once the TRAM free flap is transposed to the woman's chest, the epigastric blood vessels are anastomosed (connected) to the internal thoracic vein to maintain the tissue viability of the reconstructed breast.
Technically, the harvesting of the TRAM free-flap is relatively easy and fast; because it possesses a robust blood supply, there is a low risk of tissue necrosis, either of the flap or of the adipocyte fat, and the reconstructed breast can tolerate oncologic radiotherapy.
Besides a long scar to the abdomen, the surgical sacrifice of the rectus abdominis muscle can result in a higher risk of medical complications of the abdominal donor-site, such as hernia, and consequent intestinal protrusion (bulging), and pain. Said conditions require the reinforcement of the woman's abdominal wall with a synthetic mesh.
The woman must be psychologically motivated to undergo such great surgical interventions (reconstruction and harvesting), and she must physically possess sufficient abdominal tissues (skin, muscle, and fat) with which to construct the replacement breast. The division of the superior epigastric blood supply, by a previous surgery, precludes a pedicled TRAM flap as the feasible method for breast reconstruction. A radical mastectomy defect (hole) requiring a great volume of replacement tissue. A medical history of radiation to the chest wall. A large opposite breast, which is difficult to match with a pectoral implant; and a. previous, failed reconstruction with a breast implant.
The woman is not a suitable patient for a free-flap breast reconstruction surgical procedure if she has any of the following symptoms, or a combination of these symptoms: ASA III or an ASA IV surgical-health grade, a blood coagulation disorder, an unstable psychiatric disease, a BMI > 35 obesity grade, a previous surgery that interrupted the blood supply to the TRAM flap, or contraindications to anticoagulation therapy. [1] [4] [5]
The design of the DIEAP free flap is like the design of the TRAM flap; yet, the DIEAP flap consists only of skin, adipose fat, and one or more perforator vessels of the deep inferior epigastric blood-vessel system. During the harvesting of the DIEAP flap from the donor site, the plastic surgeon's special consideration is preserving the entirety of the rectus abdominis muscle and its innervation .
The surgical procedure utilizing the DIEAP free flap is less painful, and allows the woman a shorter post-operative recovery period, because the harvesting procedure preserved all of the abdominal muscles and relevant innervation. Likewise, the long-term preservation of abdominal strength reduces the risk of abdominal complications, such as hernia, intestinal bulging, and pain. The DIEAP free flap breast reconstruction can tolerate oncologic radiotherapy.
The more complicated surgical technique required to harvest the DIEAP free flap does include the possibility of damaging the perforator blood vessels; a long time for the patient to be under anaesthesia; and a long surgical scar at the abdominal-tissue donor site.
The woman must be psychologically motivated to undergo such great surgical interventions (reconstruction and harvesting), and she must physically possess sufficient abdominal tissues (skin, muscle, and fat) with which to construct the replacement breast. The division of the superior epigastric blood supply, by a previous surgery, precludes a pedicled TRAM flap as the feasible method for breast reconstruction. A radical mastectomy defect (hole) requiring a great volume of replacement tissue. A medical history of radiation to the chest wall. A large opposite breast, which is difficult to match with a pectoral implant; and a previous, failed reconstruction with a breast implant.
The woman is not a suitable patient for a free-flap breast reconstruction surgical procedure if she has any of the following symptoms, or a combination of these symptoms: ASA III or an ASA IV surgical-health grade, a blood coagulation disorder, an unstable psychiatric disease, a BMI > 35 obesity grade, a previous surgery that interrupted the blood supply to the DIEAP free flap, or contraindications to anticoagulation therapy. [4] [5] [6] [7]
The technique of the MS-TRAM flap is similar to the technique of the DIEAP flap, but the MS-TRAM flap is used if the perforators of the abdominal wall are located in different intramuscular layers and the muscle fibres between these vessels would need to be divided. This gives damage to the rectus muscle, necessitating a reinforcing mesh repair and causing higher chance of postoperative complications such as abdominal wall weakness, bulging or herniation. In this situation the MS-TRAM flap is performed, in which a small cuff of muscle fibres between and around the perforators is incorporated.
Most of the muscle is preserved, reducing the chance of postoperative donor site complications and obviating the need for a synthetic mesh repair. It is a good alternative to the DIEAP flap.
The same as for the DIEAP flap.
When a DIEAP flap is not possible because of unsuitable or insufficient perforators.
The SIEA flap design is more or less similar to the DIEAP flap design, however, it is perfused by different blood vessels. The superficial epigastric vessels branch off the common femoral vessels in the groin area and vascularise the ipsilateral lower hemi-abdomen. Unlike the DIEAP flap the SIEA flap is not a perforator flap, because the vessels do not perforate the abdominal wall musculature. Therefore, the flap can be raised without incising the anterior rectus sheath and dissecting within the rectus muscles and thus further reducing the chance of donor site morbidity.
Reduced chance of abdominal donor site morbidity because there is no dissection within the rectus muscle.
Smaller diameter and shorter length of the vascular pedicle compared to the TRAM and DIEAP flap. The SIEA is absent or inadequate in many patients, which can only be determined during surgery. A smaller flap has to be designed because the vessels perfuse a smaller area of the lower abdomen, which may cause an inadequate size of the reconstructed breast. Long abdominal donor site scar.
The same as for DIEAP flap, and the presence of a superficial inferior epigastric artery with an adequate diameter.
The same as for DIEAP flap, and an absent or inadequate superficial inferior epigastric artery. [5] [6] [7]
The SGAP flap includes skin and fat from the upper buttock with one or more perforators of the superior gluteal artery and vein, which perfuse the tissue. The flap is usually harvested in the prone or lateral decubitus position necessitating turning of the patient during surgery.
Gluteal muscles are preserved and donor site scar is hidden in underwear.
A complex surgical operation; the dissection of the muscle is technically difficult, in order to obtain a workable flap, which possesses a relatively short vascularised pedicle. Intra-operatively, the patient must be rotated during the course of the procedure. There exists a possibility that the contour of the tissue donor-site could cause a deformity high upon the buttocks area; and the woman might have asymmetrical buttocks in the case of a unilateral breast reconstruction.
Unsuitable or insufficient abdominal donor site. Redundant buttock-fat and buttock-skin.
Insufficient buttock tissue. Damage to the perforators, because of a previous surgical operation, such as liposuction. [6] [7] [9] [10] [11] [12] [13]
The perforator of the sc-GAP flap courses between the gluteus medius and maximus muscles. Using the septocutaneous gluteal artery perforator obviates the need for intramuscular dissection.
No intramuscular dissection necessary, making surgery easier than in traditional GAP flaps.
The septocutaneous perforator is not always present; the requirement to rotate the patient during the surgery; the possibility of a donor-site contour deformity high upon the buttocks area; and an asymmetrical buttocks region in the case of a unilateral breast reconstruction.
Identical to SGAP flap.
The same as the SGAP flap, and the absence of a septocutaneous perforator. [14]
Harvesting of the IGAP flap is similar to raising the SGAP flap, however, the flap is taken from the lower buttock area including one or more perforators of the inferior gluteal vessels.
Longer vascular pedicle compared to the SGAP flap. The scar is hidden in the buttock crease.
Rather tedious dissection of the flap and possibility of damage to the posterior femoral cutaneous nerve. Need to turn the patient during surgery. Scar tenderness causing problems with sitting. Visibility of the scar lateral to underwear/swimwear. Need to turn the patient during surgery. Possibility of a donor site contour deformity of the buttock area. Asymmetrical buttocks in case of a unilateral breast reconstruction.
Identical to SGAP flap.
The TUG flap (also the TMG flap) consists of the gracilis muscle and a transversely-oriented island of skin and fat on the superior inner thigh. Sacrifice of the gracilis muscle does not result in functional impairment. The TUG flap is nourished by the ascending branch of the medial circumflex femoral artery with two venae comitantes, which come from the profunda femoris vessels. The vessels are routinely anastomosed to the internal mammary vessels, instead of to the thoraco-dorsal vessels in the axilla, because the blood vessels of the TUG flap are relatively short.
Relatively easy dissection of the flap. Bilateral flap harvest is possible with patient in supine position. The scar is well hidden in the groin crease. Another benefit of the surgery is the ‘inner thigh lift’ the patients receive.
The flap provides a rather small skin island with a relatively thin fat pad, which makes it only possible to reconstruct small to medium-sized breasts. The small skin island also makes it a less appropriate flap for delayed breast reconstructions. Atrophy of the gracilis muscle may cause secondary volume and contour deformities of the reconstructed breast for which additional corrections may be necessary.
If there is a contraindication for an abdominal flap or in case the patient refuses an abdominal or buttock scar. Small to medium-sized breasts. Primary bilateral reconstruction after skin sparing mastectomy.
Large sized breasts. Patients with inadequate thigh tissue or after previous thigh lift. Delayed reconstructions. [15] [16] [17]
The PAP flap includes skin and fat of the posterior thigh just below the gluteal crease and is nourished by the perforating vessels from the profunda femoris artery that run through the adductor magnus muscle.
Relatively long vascular pedicle. Scar is hidden in lower buttock crease.
Need to turn the patient during surgery. Scar tenderness causing problems with sitting. Visibility of the scar lateral to underwear/swimwear. Asymmetrical donor site in case of a unilateral breast reconstruction.
Unsuitable or insufficient abdominal donor site. “Pear-shaped” body.
Insufficient skin and fat redundancy of posterior thigh. Absence of perforator. [18]
The TFL flap reconstruction includes the tensor fasciae latae muscle and is nourished by the ascending branch of the lateral circumflex femoral artery. The tensor fasciae latae muscle is located at the lateral upper leg.
The fascia lata covering the TFL-muscle is very thick, which makes it a good donor site for closing defects. No need to turn the patient during surgery.
Vertical scar at the lateral upper leg. The amount of fat may not be enough to reconstruct an entire breast. Asymmetrical upper leg after unilateral breast reconstruction.
In case of unavailability of other potential donor sites.
Previous surgery at donor site. Insufficient skin and fat redundancy of lateral thigh. [19]
The LTTF flap is a horizontal variant of the vertical TFL flap, nourished by the perforating vessels of either the ascending or the transverse branch of the lateral circumflex femoral artery and vein. The flap is oriented transversely on the tensor fasciae latae, also known as the “saddlebag” area.
A rather long pedicle located at the edge of the flap, making the flap very versatile in its positioning possibilities. Flap harvest is possible with patient in the prone position. Relatively easy flap dissection. Generally there is a good internal projection of the flap without the need for folding or tucking.
The donor-site scar might be more aesthetically objectionable than that of another free-flap breast reconstruction technique. Some women might possess insufficient tissue at the donor site. Generally, there is less overlying skin available for effecting the transfer. Asymmetrical hips after unilateral breast reconstruction.
Patients with insufficient abdominal wall tissue and large saddlebags, who accept the scar and the donor site deformity. In case other free flaps are not possible.
Analogous to the TFL-flap technique. [20]
The ALT flap consists of skin and subcutaneous fat of the anterolateral thigh just above the knee. The vessels nourishing the ALT flap are the perforators of the descending branch of the lateral circumflex femoral artery and veins.
Usually there is a large amount of fat at this donor site. Muscle sparing surgery. No need to turn the patient during surgery. Long vascular pedicle.
The vertical and rather conspicuous donor scar may be more objectionable. Asymmetrical upper leg after unilateral breast reconstruction.
Patient preference. In case other free flaps are not possible.
The Rubens flap consists of the peri-iliac fat pad which is based on the deep circumflex iliac artery and vein. The flap pedicle is 5–6 cm. long and the blood vessels are approximately 2.5 mm. in diameter.
The length and calibre of the vascular pedicle of the flap are usually sufficient. Bilateral reconstruction is possible. Flap dissection is possible with the patient in prone position. The donor-site defect appears to be more acceptable than with the LTTF flap and in selected cases it can even be less conspicuous than the donor site of an abdominal based flap.
The Deep Circumflex Iliac Artery Free flap is technically more difficult than the TRAM flap, and shaping the new breast seems more challenging than with the TRAM or gluteal flap because of its fusiform shape. Asymmetrical donor site after unilateral breast reconstruction. The blood supply to the flap is less robust and sometimes the deep circumflex iliac vein is small, making venous anastomosis required to transfer the flap more difficult. Part of the donor site scar may be visible in swimsuit. Improper reinsertion of donor site muscles on the iliac crest can cause postoperative complications, like a hernia. Also, nerve paresthesias are possible.
The Rubens flap is indicated if a TRAM flap is not possible because of a previous abdominal surgery or if the patient does not accept an abdominal scar.
Insufficient skin and fat redundancy at donor site. [24] [25]
The LAP flap is a flap from the dorsal lumbar area extending to the lateral edge of the rectus abdominis muscle which consists of fat, skin and one paravertebral perforator from the lumbar vessels. The lumbar vessels travel through the erector spinae muscles or between the erector spinae muscle and quadratus lumborum muscle. Preoperatively, the perforators are located using a hand held doppler. The vessels are cut at the beginning of the vasa lumbales.
Large flap.
Flap harvest in prone position necessitating turning of the patient during the operation. Not in all cases a suitable perforator is available.
In case other free flaps are not possible.
Insufficient or unsuitable perforator. Insufficient skin and fat redundancy at donor site. [26]
This section needs expansion. You can help by adding to it. (May 2017) |
Medication may be prescribed post-surgery to relieve pain and drains may be placed at the surgical wound to remove fluids. A support bra or elastic bandage is often recommended to decrease swelling and support healing. [27] [28]
Breast reconstruction is the surgical process of rebuilding the shape and look of a breast, most commonly in women who have had surgery to treat breast cancer. It involves using autologous tissue, prosthetic implants, or a combination of both with the goal of reconstructing a natural-looking breast. This process often also includes the rebuilding of the nipple and areola, known as nipple-areola complex (NAC) reconstruction, as one of the final stages.
Plastic surgery is a surgical specialty involving the restoration, reconstruction, or alteration of the human body. It can be divided into two main categories: reconstructive surgery and cosmetic surgery. Reconstructive surgery covers a wide range of specialties, including craniofacial surgery, hand surgery, microsurgery, and the treatment of burns. This category of surgery focuses on restoring a body part or improving its function. In contrast, cosmetic surgery focuses solely on improving the physical appearance of the body. A comprehensive definition of plastic surgery has never been established, because it has no distinct anatomical object and thus overlaps with practically all other surgical specialties. An essential feature of plastic surgery is that it involves the treatment of conditions that require or may require tissue relocation skills.
Rhinoplasty, commonly called nose job, medically called nasal reconstruction, is a plastic surgery procedure for altering and reconstructing the nose. There are two types of plastic surgery used – reconstructive surgery that restores the form and functions of the nose and cosmetic surgery that changes the appearance of the nose. Reconstructive surgery seeks to resolve nasal injuries caused by various traumas including blunt, and penetrating trauma and trauma caused by blast injury. Reconstructive surgery can also treat birth defects, breathing problems, and failed primary rhinoplasties. Rhinoplasty may remove a bump, narrow nostril width, change the angle between the nose and the mouth, or address injuries, birth defects, or other problems that affect breathing, such as a deviated nasal septum or a sinus condition. Surgery only on the septum is called a septoplasty.
Abdominoplasty or "tummy tuck" is a cosmetic surgery procedure used to make the abdomen thinner and more firm. The surgery involves the removal of excess skin and fat from the middle and lower abdomen in order to tighten the muscle and fascia of the abdominal wall. This type of surgery is usually sought by patients with loose or sagging tissues, that develop after pregnancy or major weight loss.
Breast augmentation and augmentation mammoplasty is a cosmetic surgery procedure, which uses breast-implants and/ or fat-graft mammoplasty technique to increase the size, change the shape, and alter the texture of the breasts. Although in some cases augmentation mammoplasty is applied to correct congenital defects of the breasts and the chest wall in other cases it is performed purely for cosmetic reasons.
Reduction mammoplasty is the plastic surgery procedure for reducing the size of large breasts. In a breast reduction surgery for re-establishing a functional bust that is proportionate to the patient's body, the critical corrective consideration is the tissue viability of the nipple–areola complex (NAC), to ensure the functional sensitivity and lactational capability of the breasts. The indications for breast reduction surgery are three-fold – physical, aesthetic, and psychological – the restoration of the bust, of the patient's self-image, and of the patient's mental health.
Grafting refers to a surgical procedure to move tissue from one site to another on the body, or from another creature, without bringing its own blood supply with it. Instead, a new blood supply grows in after it is placed. A similar technique where tissue is transferred with the blood supply intact is called a flap. In some instances, a graft can be an artificially manufactured device. Examples of this are a tube to carry blood flow across a defect or from an artery to a vein for use in hemodialysis.
Microsurgery is a general term for surgery requiring an operating microscope. The most obvious developments have been procedures developed to allow anastomosis of successively smaller blood vessels and nerves which have allowed transfer of tissue from one part of the body to another and re-attachment of severed parts. Microsurgical techniques are utilized by several specialties today, such as general surgery, ophthalmology, orthopedic surgery, gynecological surgery, otolaryngology, neurosurgery, oral and maxillofacial surgery, endodontic microsurgery, plastic surgery, podiatric surgery and pediatric surgery.
The internal thoracic artery (ITA), also known as the internal mammary artery, is an artery that supplies the anterior chest wall and the breasts. It is a paired artery, with one running along each side of the sternum, to continue after its bifurcation as the superior epigastric and musculophrenic arteries.
Gluteoplasty denotes the plastic surgery and the liposuction procedures for the correction of congenital, traumatic, and acquired defects/deformities of the buttocks and the anatomy of the gluteal region; and for the aesthetic enhancement of the contour of the buttocks.
The terms free flap, free autologous tissue transfer and microvascular free tissue transfer are synonymous terms used to describe the "transplantation" of tissue from one site of the body to another, in order to reconstruct an existing defect. "Free" implies that the tissue is completely detached from its blood supply at the original location and then transferred to another location and the circulation in the tissue re-established by anastomosis of artery(s) and vein(s). This is in contrast to a "pedicled" flap in which the tissue is left partly attached to the donor site ("pedicle") and simply transposed to a new location; keeping the "pedicle" intact as a conduit to supply the tissue with blood.
Mastopexy is the plastic surgery mammoplasty procedure for raising sagging breasts upon the chest of the woman, by changing and modifying the size, contour, and elevation of the breasts. In a breast-lift surgery to re-establish an aesthetically proportionate bust for the woman, the critical corrective consideration is the tissue viability of the nipple-areola complex (NAC), to ensure the functional sensitivity of the breasts for lactation and breast-feeding.
A DIEP flap is type of breast reconstruction where blood vessels, fat, and skin from the lower belly are relocated to the chest to rebuild breasts after mastectomy. DIEP stands for the deep inferior epigastric perforator artery, which runs through the abdomen. This is a type of autologous reconstruction, meaning one's own tissue is used.
Nasal reconstruction using a paramedian forehead flap within oral and maxillofacial surgery, is a surgical technique to reconstruct different kinds of nasal defects. In this operation a reconstructive surgeon uses skin from the forehead above the eyebrow and pivots it vertically to replace missing nasal tissue. Throughout history the technique has been modified and adjusted by many different surgeons and it has evolved to become a popular way of repairing nasal defects.
The tint of forehead skin so exactly matches that of the face and nose that it must be first choice. Is not the forehead the crowning feature of the face and important in expression? Why then should we jeopardize its beauty to make a nose? First, because in many instances, the forehead makes far and away the best nose. Second, with some plastic juggling, the forehead defect can be camouflaged effectively.
Flap surgery is a technique in plastic and reconstructive surgery where tissue with an intact blood supply is lifted from a donor site and moved to a recipient site. Flaps are distinct from grafts, which do not have an intact blood supply and relies on the growth of new blood vessels. Flaps are done to fill a defect such as a wound resulting from injury or surgery when the remaining tissue is unable to support a graft, or to rebuild more complex anatomic structures like breasts or jaws.
Scalp reconstruction is a surgical procedure for people with scalp defects. Scalp defects may be partial or full thickness and can be congenital or acquired. Because not all layers of the scalp are elastic and the scalp has a convex shape, the use of primary closure is limited. Sometimes the easiest way of closing the wound may not be the ideal or best way. The choice for a reconstruction depends on multiple factors, such as the defect itself, the patient characteristics and surgeon preference.
The cheek constitutes the facial periphery and plays a key role in the maintenance of oral competence and mastication. It is also involved in the facial manifestation of human emotion and supports neighboring primary structures.
Perforator flap surgery is a technique used in reconstructive surgery where skin and/or subcutaneous fat are removed from a distant or adjacent part of the body to reconstruct the excised part. The vessels that supply blood to the flap are isolated perforator(s) derived from a deep vascular system through the underlying muscle or intermuscular septa. Some perforators can have a mixed septal and intramuscular course before reaching the skin. The name of the particular flap is retrieved from its perforator and not from the underlying muscle. If there is a potential to harvest multiple perforator flaps from one vessel, the name of each flap is based on its anatomical region or muscle. For example, a perforator that only traverses through the septum to supply the underlying skin is called a septal perforator. Whereas a flap that is vascularised by a perforator traversing only through muscle to supply the underlying skin is called a muscle perforator. According to the distinct origin of their vascular supply, perforators can be classified into direct and indirect perforators. Direct perforators only pierce the deep fascia, they don't traverse any other structural tissue. Indirect perforators first run through other structures before piercing the deep fascia.
Fat transfer, also known as fat graft, lipomodelling, or fat injections, is a surgical process in which a person's own fat is transferred from one area of the body to another area. The major aim of this procedure is to improve or augment the area that has irregularities and grooves. Carried out under either general anesthesia or local anesthesia, the technique involves 3 main stages: fat harvesting, fat processing and fat injection.
Nipple reconstruction, specifically nipple-areola complex (NAC) reconstruction, is a procedure commonly done for patients who had part or all of their nipple removed for medical reasons. For example, NAC reconstruction can apply to breast cancer patients who underwent a mastectomy, the surgical removal of a breast. NAC reconstruction can also be applied to patients with trauma, burn injuries, and congenital or pathological abnormalities in nipple development.
{{cite journal}}
: CS1 maint: multiple names: authors list (link)