Surgical treatment of skin lesions in lupus erythematosus.

Lipodystrophies are a wide group of diseases with various etiology, mainly genetic, metabolic or autoimmune. The treatment of these diseases is chronic and not always effective. Major concerns for patients with lipodystrophies are also esthetic defects, especially deformities in the face, neck and upper limbs. There are many surgical methods that can be used to improve patient's appearance like fillers, autologous fat transfer and skin flaps. The aim of this paper is to present and discuss surgical techniques used for correction of lipoatrophy and other skin lesions present in lupus erythematosus. In the first presented patient, lipodermal grafts were performed in two stages (first - to both zygomatic areas, the second - to both nasolabial folds). Moreover, the patient was qualified for arm scar plasty. Deepithelialized skin in the affected area was covered with advanced local skin flaps. In the second patient, an extensive scarring lesion on the scalp was excised and the defect was closed with an expanded scalp flap. Patients with lipodystrophies may require aesthetic surgical procedures to improve their appearance. In patients with lupus erythematosus, autologous fat graft in the face area seems to be a safe and effective method of refilling the volume of atrophic tissues. On the basis of our experience, it is worth emphasizing that the process of fat graft resorption is typical. In patients with scalp scars, an effective method of their removal and hairline restoring is usage of the tissue expander.

Introduction

Lipodystrophy disorders are a group of heterogeneous conditions connected with defective metabolism and progressive loss of fat that affects the subcutaneous tissue of the face, upper limbs, thoracic region, occasionally extending to the groins or thighs, and rarely visceral compartment. Multiple genetic forms are often associated with other metabolic and systemic anomalies, and result in a gradually progressive lipoatrophy accompanied by redistribution of the fat especially in the upper body. Acquired types can be related to various autoimmune disorders, e.g. lupus erythematosus [1, 2]. As many as 30% of patients afflicted with lupus present dermatological symptoms on the face like malar rash, thick, red scaly patches on the skin, and less frequent alopecia, mouth, nasal, urinary tract and vaginal ulcers, and other lesions of the skin [3, 4]. Scarring and lipoatrophy exposed on the face can be a psychological problem. The cheeks, zygomatic areas and nasolabial folds are the most common sites treated surgically where a limited functional restoration and good aesthetic results can be obtained. Improvement in the case of small facial contour deformities can be achieved with autogenic fat grafts or lipodermal grafts. Fat grafts transferred by lipoinjection are subject to resorption processes, similarly to surgical grafts. The limitation of this popular technique is the volume of the injected fat, as excessive fat transfer may jeopardize revascularization. However, the procedure can be repeated multiple times and donor site morbidity is minimal [5]. Grafts supplementation with adipose-derived stem/stromal cells (CAL technique) may prove superior to the facial recontouring technique employed in patients with lupus profundus [6].

In some cases, dermal fillers like hyaluronic acid may be helpful in scar depression correction [7, 8]. Major areas of the resected necrotic skin together with the soft tissue defect may require coverage with either local or microvascular free tissue transfer. Different methods of local plasty can be indicated depending on the size and location of the lesion. Scalp defects can also be reconstructed with the use of expanders or the technique called “Nordström Suture” [9]. Unlike fat grafting, the free flaps transferred for facial contour reconstruction provide large volumes of reliable tissue. Disadvantages of these techniques include longer operative times and hospital stays, donor site scarring and morbidity. Deposition of immunoglobulins along the vascular basement membranes and often concomitant hypercoagulability in patients afflicted with collagen vascular diseases increase their risk of thrombosis. However, data from some authors deny any significant increase in microvascular flap complications in this population of patients and therefore they should not be excluded from free flap reconstruction [10, 11]. Also, the results of microsurgical correction of bilateral soft-tissue facial contour deformities show that it seems to be superior to unilateral cases [11]. The most commonly used microsurgical flaps include: anterolateral thigh and radial forearm flaps, superficial inferior epigastric flaps or inframammary extended circumflex scapular flaps for head and neck reconstruction [10-12].

The aim of this paper is to present and discuss surgical techniques used for correction of lipoatrophy and other skin lesions present in lupus erythematosus, on the basis of our own experiences.

Case reports

Patient 1

A woman aged 48 presented to the Plastic Surgery Out-Patient Clinic with severe atrophic lesions of fatty tissue in the cheeks, frontal area and left arm. Lipoatrophy and scarring skin lesions (lipodystrophy) were present in the zygomatic area, nasolabial folds, forehead and fronto-parietal scalp. The lesions were multifocal and well circumscribed from the adjacent tissues (Figures 1A, B). Medical history revealed that lipoatrophy has been proceeding for about 30 years. The patient was diagnosed with lupus erythematosus profundus (lupus panniculitis – LEP). Pharmacological treatment did not cause reduction of skin lesions and improvement of fatty tissue distribution. After finishing therapy, the patient was qualified for surgical corrections in the Plastic, Reconstructive and Aesthetic Surgery Clinic. At first, lipodermal graft from the gluteal fold was transferred to both zygomatic areas. Due to the basic illness and increased risk of graft atrophy, the patient was followed-up in the Out-Patient Clinic for 12 months. After a year, we observed a partial graft resorption, however the long-term outcome was very good (Figure 2A). Then, the patient was planned for the next stage of surgical treatment and lipodermal graft from the gluteal fold was transferred to fill deficits in both nasolabial folds. After 3 months from the previous procedure, the left arm plasty was performed – deepithelialized skin in the affected area was covered with advanced local skin flaps. Currently, 2 years after the first surgical procedure, the aesthetic result in the aspects of face and arm contour is satisfactory (Figures 2B, C).

Figure 1

Patient aged 48. A – Face lesions. B – Lesions on the arm

Figure 2

A – Status post lipodermal grafts transfer to both zygomatic areas. B – Status post lipodermal grafts transfer to both zygomatic areas and nasolabial folds. C – Status post arm plasty

Patient 2

A patient aged 59 presented to the Plastic Surgery Out-Patient Clinic with an extensive scarring lesion on the scalp. Medical history revealed that about 20 years before she was diagnosed with systemic lupus erythematosus (SLE) and treated pharmacologically. At the time of consultation, the autoimmune process was in remission and the observed scalp scar was a result of SLE. The size of the lesion was 7 cm × 6 cm and it was located in the parietal area, on the left to the midline (Figure 3). The patient was qualified for treatment in the Clinic. At first, Eurosilicone 250 cc tissue expander was implanted under the unaffected scalp. During the next 2 months, the expander was gradually filled to the final volume (Figure 4A). Then, it was removed and the scar in the parietal scalp was excised, and the defect was closed with an expanded scalp flap. The healing process was uncomplicated and the esthetic result assessed 12 months after the last procedure is very good (Figure 4B).

Figure 3

Patient aged 59: scalp lesion

Figure 4

Patient aged 59. A – Status post expander implantation and fulfillment. B – Status post lesion excision and defect closure with an expanded scalp flap

Discussion

Lipodystrophies are a wide group of diseases with various etiology, mainly genetic, metabolic or autoimmune [2, 13]. The treatment of this disease is chronic and not always effective. Proper diagnosis and adequate drug administration are of fundamental importance. Major concerns for patients with lipodystrophies are also aesthetic defects [13]. That is why for such patients, apart from general treatment, possibilities to eliminate the cosmetic malformations are also important. Correction procedures are performed mainly on the exposed body parts – face, neck and upper limbs.

There are many surgical methods to improve the patient's appearance and the choice of technique depends on the severity of the process and the preference of the surgical center. One of the possibilities is to correct face or neck contours using the autologous fat [5]. Pinski and Roenigk showed the results of surgical treatment in a group of 43 patients. All patients underwent autologous fat transplantation and indications included mainly lupus erythematosus. Authors concluded that autologous fat transplantation is a safe and effective procedure, with long follow-up observations (mean 26 months) [14]. Yoon et al. suggested that the autologous fat transfer is a good choice to correct face atrophic lesions in patients with lupus erythematosus. Unquestionable advantages of this method are that the material used is patients’ own tissue (biocompatible), it has no allergic reaction and is easy to harvest [15]. A similar treatment path was introduced in the first described patient. Fat graft was performed twice, in the first stage to cheeks in the zygomatic area, while during the second stage to the area of nasolabial folds. Currently, 2 years after the treatment was introduced, a good long-term aesthetic result is observed, and fat resorption is typical.

The usage of tissue expanders on the scalp makes it possible to excise the scalp scar, followed by defect closure with expanded skin and hairline restoration. Such surgical procedures are introduced in patients after burns or with alopecia [16, 17]. Tissue expander was implanted in the second described patient, in whom the scalp scar developed in the course of lupus erythematosus. The lesion was extensive and caused a cosmetic defect. The treatment resulted in good aesthetic effects.

Conclusions

Patients with lipodystrophies, independently of the disease cause, may require aesthetic surgical procedures to improve their appearance. The plan of surgical treatment should be individual and depends on the localization and extension of lipoatrophy. In patients with lupus erythematosus autologous fat graft in the face area seems to be a safe and effective method of refilling the volume of atrophic tissues. It is worth emphasizing that the process of fat graft resorption is typical and placing autologous fat in the atrophic area does not accelerate the fat resorption. The state of tissue hypercorrection allows for achieving more lasting and satisfactory surgical effects. In patients with scalp scars, the effective method of their removal and hairline restoring is the usage of the tissue expander.