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Superior long term functional and scar outcome of Meek micrografting compared to conventional split thickness skin grafting in the management of burns

Lee SZ, Halim AS

Burns, 2019 09;45(6):1386-1400.
PMID: 31054957 DOI: 10.1016/j.burns.2019.04.011

INTRODUCTION: Autologous skin grafting is the mainstay of treatment in burn patients. Extensive full thickness burns remains a challenge to the burns surgeon due to the lack of autologous skin donor sites. The conventional split thickness skin grafting (SSG) and the Meek micrografting (Meek) technique are part of the armamentarium of the burns surgeon to curtail the challenge of paucity of donor sites. With advances in burn care, mortality rates of burn patients have reduced. As a result, with more patients surviving acute burn, there is a paradigm shift of research towards assessment of functional outcomes and quality of life of the burn survivors. As there is lack of research regarding the functional outcome of the Meek technique, this study was designed to examine the long term functional outcome of the Meek technique and SSG in burns.
METHOD: A cross-sectional study was conducted in Hospital Universiti Sains Malaysia to assess patients with burns between 10 to 40% total body surface area (TBSA) and with at least one year after injury. The Burn Specific Health Score-brief (BSHS-B) was utilized to compare the functional outcome whilst the Vancouver Scar Scale (VSS) was used for comparison on the scar outcome of the two skin grafting techniques.
RESULTS: Forty three patients (Meek,15; SSG,28) were included. The mean current age (years old) of Meek and SSG was 24.7 (range, 7-75) and 25.9 (range, 7-65) respectively. The mean TBSA (%) of the Meek group was 26.7 (range, 13-40) while that of the SSG group was 16.1 (range, 10-32). A simplified domain structure was used for the BSHS-B questionnaire. The work and sexuality subscale were analyzed separately due to missing data. There mean scores of affect and relations was higher in Meek compared to SSG (Meek, 3.86; SSG, 3.75; p > 0.05). Function domain was also better in Meek compared to SSG (Meek, 3.88; SSG, 3.73; p > 0.05). The Meek group displayed superior scar outcome compared to SSG as evidenced by the statistically significant difference in score for the pigmentation, pliability, height and total VSS score.
CONCLUSION: The Meek group showed more favorable BSHS-B scores compared to the SSG group. The scar outcome of the Meek technique is significantly superior to SSG. Therefore, the Meek technique is superior in the management of burns because the long term scar and functional outcome of this technique is better compared to conventional SSG.

Matched MeSH terms: Skin Transplantation/methods*
Recurrent occipital dermatofibrosarcoma protuberans tackled with wide local excision: A case report and current management

Kho JPY, Ng BHK, John R

Med J Malaysia, 2019 02;74(1):82-84.
PMID: 30846668

Dermatofibrosarcoma protuberans (DFSP) is a slowgrowing, locally invasive tumour of the dermis. It commonly presents in the trunks and proximal extremities but is seen to a lesser extent in the head and neck regions. We present a case report of a recurrent DFSP in a 48-year-old Iban woman at the occipital region. The patient underwent wide local excision and removal of outer table of cranium, dressing followed by split thickness skin graft. Histopathological examination confirmed dermatofibrosarcoma protuberans with clear lateral surgical margins and a deep margin of 0.5mm. She is currently undergoing radiotherapy and is planned for 50Grey 25cycles.

Matched MeSH terms: Skin Transplantation/methods
Outcome of the Modified Meek Technique in the Management of Major Pediatric Burns

Lee SZ, Halim AS, Wan Sulaiman WA, Mat Saad AZ

Ann Plast Surg, 2018 09;81(3):295-301.
PMID: 29994880 DOI: 10.1097/SAP.0000000000001565

INTRODUCTION: The modified Meek micrografting technique has been used in the treatment of severely burned patients and a number of articles have examined the use of the modified Meek technique in adults and in mixed-age groups. However, there is a paucity of research pertaining to the outcome in the pediatric age group. The aim of this study is to present our favorable outcome in pediatric major burns using the modified Meek technique.
METHODS: A retrospective review of burn cases in Hospital Universiti Sains Malaysia from 2010 to 2015 was conducted. Cases of major burns among pediatric patients grafted using the Meek technique were examined.
RESULTS: Twelve patients were grafted using the Meek technique. Ten (91.7%) patients were male, whereas 2 (8.3%) were female. The average age of patients was 6 years (range, 2-11 years). The average total body surface area was 35.4% (range, 15%-75%). Most burn mechanisms were due to flame injury (66.7%) as compared with scalds injury (16.7%) and chemical injury (16.7%). There was no mortality. All patients were completely grafted with a good donor site scar. The average graft take rate was 82.3%, although 8 cases had positive tissue cultures from the Meek-grafted areas. The average follow-up duration was 3.6 years (range, 1.1-6.7 years). Only 1 case developed contracture over minor joint.
CONCLUSIONS: The Meek technique is useful when there is a paucity of donor site in the pediatric group. The graft take is good, contracture formation is low, and this technique is cost-effective.

Matched MeSH terms: Skin Transplantation/methods*
The Use of Engineered Bilayered Skin (MyDermTM) in the Management of Massive Skin Defect in Grade III Gustilo-Anderson Open Fracture

Mohamed Haflah NH, Ng MH, Mohd Yunus MH, Naicker AS, Htwe O, Fahmi M, et al.

Int J Low Extrem Wounds, 2017 Sep;16(3):212-216.
PMID: 28862056 DOI: 10.1177/1534734617724974

Open fracture Gustilo-Anderson grade IIIC is associated with higher risk of infection and problems with soft tissue coverage. Various methods have been used for soft tissue coverage in open fractures with large skin defect. We report a case of a patient who had grade IIIC open fracture of the tibia with posterior tibial artery injury. The patient underwent external fixation and reduction. Because of potential compartment syndrome after vascular repair, fasciotomy of the posterior compartment was performed. This wound, however, became infected and because of further debridement, gave rise to a large skin defect. A tissue engineered skin construct, MyDermTM was employed to cover this large defect. Complete wound closure was achieved 35 days postimplantation. The patient then underwent plating of the tibia for nonunion with no adverse effect to the grafted site. The tibia eventually healed 5 months postplating, and the cosmetic appearance of the newly formed skin was satisfactory.

Matched MeSH terms: Skin Transplantation/methods*
Epidermal Regeneration of Cultured Autograft, Allograft, and Xenograft Keratinocytes Transplanted on Full-Thickness Wounds in Rabbits

Hanifi N, Halim AS, Aleas CF, Singh J, Marzuki M, Win TT, et al.

Exp Clin Transplant, 2015 Jun;13(3):273-8.
PMID: 26086837

Skin grafting has been evolving as an important application in reconstructive surgery. Mixed reports about the survival of allogeneic and xenogeneic keratinocytes require further substantiation to determine the role of these cells in wound healing.

Matched MeSH terms: Skin Transplantation/methods*
Full-thickness skin wound healing using autologous keratinocytes and dermal fibroblasts with fibrin: bilayered versus single-layered substitute

Idrus RB, Rameli MA, Low KC, Law JX, Chua KH, Latiff MB, et al.

Adv Skin Wound Care, 2014 Apr;27(4):171-80.
PMID: 24637651 DOI: 10.1097/01.ASW.0000445199.26874.9d

Split-skin grafting (SSG) is the gold standard treatment for full-thickness skin defects. For certain patients, however, an extensive skin lesion resulted in inadequacies of the donor site. Tissue engineering offers an alternative approach by using a very small portion of an individual's skin to harvest cells for propagation and biomaterials to support the cells for implantation. The objective of this study was to determine the effectiveness of autologous bilayered tissue-engineered skin (BTES) and single-layer tissue-engineered skin composed of only keratinocytes (SLTES-K) or fibroblasts (SLTES-F) as alternatives for full-thickness wound healing in a sheep model. Full-thickness skin biopsies were harvested from adult sheep. Isolated fibroblasts were cultured using medium Ham's F12: Dulbecco modified Eagle medium supplemented with 10% fetal bovine serum, whereas the keratinocytes were cultured using Define Keratinocytes Serum Free Medium. The BTES, SLTES-K, and SLTES-F were constructed using autologous fibrin as a biomaterial. Eight full-thickness wounds were created on the dorsum of the body of the sheep. On 4 wounds, polyvinyl chloride rings were used as chambers to prevent cell migration at the edge. The wounds were observed at days 7, 14, and 21. After 3 weeks of implantation, the sheep were euthanized and the skins were harvested. The excised tissues were fixed in formalin for histological examination via hematoxylin-eosin, Masson trichrome, and elastin van Gieson staining. The results showed that BTES, SLTES-K, and SLTES-F promote wound healing in nonchambered and chambered wounds, and BTES demonstrated the best healing potential. In conclusion, BTES proved to be an effective tissue-engineered construct that can promote the healing of full-thickness skin lesions. With the support of further clinical trials, this procedure could be an alternative to SSG for patients with partial- and full-thickness burns.

Matched MeSH terms: Skin Transplantation/methods*
Fulltext Biocompatibility and toxicity of poly(vinyl alcohol)/N,O-carboxymethyl chitosan scaffold

Kamarul T, Krishnamurithy G, Salih ND, Ibrahim NS, Raghavendran HR, Suhaeb AR, et al.

ScientificWorldJournal, 2014;2014:905103.
PMID: 25298970 DOI: 10.1155/2014/905103

The in vivo biocompatibility and toxicity of PVA/NOCC scaffold were tested by comparing them with those of a biocompatible inert material HAM in a rat model. On Day 5, changes in the blood parameters of the PVA/NOCC-implanted rats were significantly higher than those of the control. The levels of potassium, creatinine, total protein, A/G, hemoglobulin, erythrocytes, WBC, and platelets were not significantly altered in the HAM-implanted rats, when compared with those in the control. On Day 10, an increase in potassium, urea, and GGT levels and a decrease in ALP, platelet, and eosinophil levels were noted in the PVA/NOCC-implanted rats, when compared with control. These changes were almost similar to those noted in the HAM-implanted rats, except for the unaltered potassium and increased neutrophil levels. On Day 15, the total protein, A/G, lymphocyte, monocyte, and eosinophil levels remained unaltered in the PVA/NOCC-implanted rats, whereas urea, A/G, WBC, lymphocyte, and monocyte levels remained unchanged in the HAM-implanted rats. Histology and immunohistochemistry analyses revealed inflammatory infiltration in the PVA/NOCC-implanted rats, but not in the HAM-implanted rats. Although a low toxic tissue response was observed in the PVA/NOCC-implanted rats, further studies are necessary to justify the use of this material in tissue engineering applications.

Matched MeSH terms: Skin Transplantation/methods
The use of glycerol-preserved skin allograft in conjunction with reconstructive and flap surgery: seven years of experience

Saad AZ, Halim AS, Khoo TL

J Reconstr Microsurg, 2011 Feb;27(2):103-8.
PMID: 20976667 DOI: 10.1055/s-0030-1268208

Major reconstructive surgery may be extensive and prolonged, and it may cause edema and compromise the flap pedicle if closed under tension. Glycerol-preserved skin allograft (GPA) can provide a means for tension-free closure and temporary cover of the wound. Seven years of analysis on GPA used in conjunction with major reconstruction was undertaken to highlight its indications, results, and outcomes. Forty-seven patients were included, aged between 9 and 73 years. Majority of patients had reconstruction following tumor resection and trauma. The main indication for use of GPA was temporary, loose cover of the wound in 44% of cases; flap pedicle protection in 31% of cases; donor site wound cover in 10%; flap monitoring in one case; and management of flap-related complications in 6% of cases. Free flap reconstruction was performed in 72% of cases. In conclusion, GPA is a useful adjunct in reconstructive surgery. It can be used temporarily to allow tension-free wound closure, as well as to protect the flap pedicle until edema subsides and the pedicle becomes stable. This latter approach allows secondary wound closure and good esthetic outcome.

Matched MeSH terms: Skin Transplantation/methods*
The application of glycerol-preserved skin allograft in the treatment of burn injuries: an analysis based on indications

Khoo TL, Halim AS, Saad AZ, Dorai AA

Burns, 2010 Sep;36(6):897-904.
PMID: 20299154 DOI: 10.1016/j.burns.2009.03.007

Glycerol-preserved skin allograft (GPA) plays a crucial role in the management of burns. Its indications include wound-bed preparation, definitive dressing and sandwich grafting technique.

Matched MeSH terms: Skin Transplantation/methods*
Effect of keratin-gelatin and bFGF-gelatin composite film as a sandwich layer for full-thickness skin mesh graft in experimental dogs

Thilagar S, Jothi NA, Omar AR, Kamaruddin MY, Ganabadi S

J Biomed Mater Res B Appl Biomater, 2009 Jan;88(1):12-6.
PMID: 18161832

Skin grafts are indicated when there is a major loss of skin. Full-thickness skin graft is an ideal choice to reconstruct defect of irregular surface that is difficult to immobilize. Full-thickness mesh grafts can be applied to patch large skin defect when there is less donor site in extensively traumatized and burned surgical patients. The concept of using natural biomaterials such as keratin, basic fibroblast growth factor is slowly gaining popularity in the field of medical research to achieve early healing. The main objective of this study is to evaluate the efficacy of gelatin conjoined with keratin processed from the poultry feather and commercially available basic fibroblast growth factor (bFGF) as a sandwich layer in promoting the viability of full-thickness skin mesh grafts. The efficacy was assessed from the observation of clinical, bacteriological, and histopathological findings in three groups of experimental dogs. The clinical observations such as color, appearance and discharge, and hair growth were selected as criteria which indicated good and early acceptance of graft in keratin-gelatin (group II). On bacteriological examination, Staphylococcus aureus and Proteus was identified in few animals. Histopathological study of the patched graft revealed early presences of hair follicles; sebaceous gland, and normal thickness of the epidermis in keratin-gelatin in group II treated animals compared with other group (group I-control, group III-bFGF-gelatin).

Matched MeSH terms: Skin Transplantation/methods
Use of dermal regeneration template (INTEGRA) in reconstructive burn surgery

Sasidaran R, Dorai AA, Sulaiman WA, Halim AS

Med J Malaysia, 2008 Jul;63 Suppl A:29.
PMID: 19024967

We present our two year experience with a dermal regeneration template (INTEGRA) in burn reconstructive surgery for contracture release as well as a reconstructive tool for management of soft tissue loss.

Matched MeSH terms: Skin Transplantation/methods
Usage of allogeneic single layered tissue engineered skin enhance wound treatment in sheep

Adha PR, Chua KH, Mazlyzam AL, Low KC, Aminuddin BS, Ruszymah BH

Med J Malaysia, 2008 Jul;63 Suppl A:30-1.
PMID: 19024968

A major factor limiting survival following extensive thermal injury is insufficient availability of donor sites to provide enough skin for the required grafting procedures. Limitation of autologous grafting promotes the usage of allograft skin substitutes to promote wound healing. Here, we investigated the wound healing potential of allograft single layered tissue engineered skin which comprises of either keratinocytes (SLTES-K) or fibroblast (SLTES-F) with fibrin as the delivery system. Results from gross and microscopic evaluation showed our single layered tissue engineered skin constructed with keratinocytes or fibroblast after gamma radiation with the dosage of 2Gy could serve as allograft for the treatment of skin loss.

Matched MeSH terms: Skin Transplantation/methods
Laminated pedicled latissimus dorsi myocutaneous flap for single-stage reconstruction of a composite anterior neck and tracheal defect

Wu LY, Halim AS, Sain AH

J Otolaryngol, 2005 Feb;34(1):69-72.
PMID: 15966482
Matched MeSH terms: Skin Transplantation/methods*