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Aim: The evidence regarding a potential role of food supplementation as an adjunct therapy in scar aftercare is limited. In this scoping review we aim to provide an overview of the possible beneficial role of supplementations in aftercare settings. Method: After formulating the research question and accompanying key words, a comprehensive search for relevant publications was performed using PubMed and Web of Science. Two authors independently identified and checked each study against the inclusion criteria. All data was collected and summarized for further discussion. Results: After screening, 11 studies were included in the qualitative synthesis. Four studies including human subjects showed a promising connection between scar improvement and supplementation of vitamin D, omega-3 fatty-acids or a Solanaceae-free diet and lower omega-6 fatty-acid intake. Most of the studies were performed on in-vitro models. Preliminary evidence confirmed the beneficial role of vitamin D. Curcumin- and quercetin-supplementation were linked to decreased fibroblast proliferation. Vitamin C enhanced collagen production in healthy as well as keloidal dermal fibroblasts. Chitin stimulated cell-proliferation in human fibroblasts and keratinocytes. Conclusion: The findings suggest early potential benefits of additional food supplementation in scar management for scars but provide no clear evidence. To establish guidelines or gather more evidence on food supplementation, studies involving human subjects (in vivo) are essential. The intricacies associated with nutritional studies in vivo present multifaceted challenges. It should be emphasized that substantial additional evidence is required before aspects such as timing and dosage of supplementation could be addressed for clinical application. Lay Summary: Aim: This scoping review looks at whether taking food supplements might help with scar care alongside standard scar management following burn injury. Little information is thought to be available on this subject. An up-to-date review of the literature was undertaken to assimilate the body of evidence and determine if a consensus could be drawn.Method: A specific research question was designed and search conducted in scientific databases like PubMed and Web of Science. Two of our team members carefully selected and reviewed each study to determine which studies met the inclusion or exclusion criteria. All studies that met the inclusion criteria were then reviewed and the information collated to enable conclusions to be drawn.Results: Eleven studies met the inclusion criteria and were used to formulate the conclusions drawn. Four studies showed that taking vitamin D, omega-3 fatty acids, a diet without certain vegetables (Solanaceae), and eating less omega-6 fatty acids might help improve scars. It is important to note that most studies (seven out of 11) were carried out in a laboratory and not with real people. These lab studies showed that vitamin D might be helpful. Supplements like curcumin and quercetin seemed to slow down the growth of skin cells like fibroblasts and keratinocytes. Vitamin C aided collagen synthesis, which is important for healthy skin, in both normal and keloid scar cells. Another substance, chitin, was also found to help skin cells and keratinocytes grow better.Conclusion: Our findings point to some early possible benefits of taking extra nutrient supplements for managing scars but do not provide clear evidence. More research is required to enable the development of supplement recommendation and guidelines to be produced. Future research should focus on human trials but do keep in mind that carrying out supplement studies with people is more complicated. The evidence provided by this scoping review is insufficient to recommend the intake of any supplements or the imposition of dietary restrictions for the purpose of managing scars.

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When performing a unilateral incomplete cleft lip repair, it is essential to create a good sub-structure of the upper lip contour, reconstruct the orbicularis oris muscle, and prevent an unwanted scar. The aim of this study was to investigate the clinical effect of muscle reconstruction using a five-flap method with a short straight-line incision in unilateral incomplete cleft lip repair. Thirty-two infants with unilateral incomplete cleft lip were treated with this method between April 2020 and February 2023. A short straight-line incision was designed along the philtral column. The orbicularis oris muscle was reconstructed with a five-flap method in three areas: nasal base area, white lip area, and red lip area. Patient outcomes were assessed through subjective evaluation and anthropometric measurements. No patient experienced any postoperative complications. The philtral column and Cupid's bow were well reconstructed. Deviation of nasal columella was corrected and the nasal floor was elevated. Functionally and aesthetically satisfactory outcomes were obtained in all patients over long-term follow-up. In conclusion, this technique was able to create a good sub-structure of the nasolabial contour and bring a significant improvement in bilateral symmetry, showing it to be an effective method for incomplete unilateral cleft lip repair with minimal scarring.

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The aim of this study is to review the role of renin-angiotensin in skin regeneration and wound healing with a focus on molecular mechanisms. Angiotensin receptor type 1 (AT1R) are abundant in the wounded area, and thus, lead to the activation of ERK, STAT1, and STAT3 which can lead to epidermal self-renewal. The expression of Renin Angiotensin System (RAS) components was significantly lower in wounds caused by burning, rather than intact skin, noting that RAS is involved in the re-epithelialization of skin. ERK, STAT and STAT3 are the targets of Ang II, indicating that RAS active components are involved in fibroblast, stem cells and keratinocyte migration. The effect of inhibiting the RAS on wound healing is context-dependent. On one hand, it is suggested that inhibiting RAS during this phase may slow down wound healing speed. On the other hand, studies have shown that RAS inhibition in this phase can lead to α-SMA activation, ultimately accelerating the wound healing process. Most of the investigations indicate that the inhibition of RAS with Angiotensin Receptor Blockers (ARBs) and Angiotensin Converting Enzyme (ACE) plays a significant role in tissue remodeling in the last phase of wound healing. It has been shown that the inhibition of RAS can inhibit scar formation and fibrosis through the downregulation of inflammatory and fibrogenic agents, such as TGF-ß, SMAD2/3, and TAK1, PDGF-BB, and HSP47. To sum up, that local administration of RAS regulators might lead to less scar formation and inflammation in the last phase of wound closure.

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In modern burn care, the focus extends beyond mere patient survival to encompass long-term functional and cosmetic outcomes. Research suggests that the technique and manner of suturing during skin grafting play a significant role in scar formation. This study aimed to explore the effectiveness of wound edge approximation with skin grafting compared to the conventional approach, where the graft edge exclusively interacts with the wound edge, in reducing hypertrophic scar development. Seventy-four burn unit patients eligible for grafting were randomly allocated into two groups: those receiving grafts with overlapping edges (Group A) and those receiving grafts with edges tailored to the burn wound (Group B). Evaluation of graft sites occurred immediately post-surgery and at 1 and 6 months post-operatively using the standardized Vancouver Scar Scale (VSS) administered by trained surgeons. The findings of this study revealed that there was no statistically significant difference between the two examined groups regarding the average duration of hospitalization and the mean thickness of wounds (P>0.05). Similarly, the mean scores for pain, vascular index, and pigmentation index immediately post-surgery, at 1 month, and 6 months later, as well as the scar height index and flexibility immediately and at 1 month post-surgery, and the Vancouver Scar Scale index at the study's conclusion, showed no significant variation between the two groups (P>0.05). However, at the 6-month follow-up, the mean scar height score (P=0.004) in the overlapping group and the mean flexibility score (P=0.017) in the non-overlapping group were significantly lower compared to the respective alternative group. This indicates a notable improvement in scar height and wound flexibility in the overlapping group over the non-overlapping group after 6 months.

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One important complication of the tracheostomy procedure is the depressed scar left after the tube is removed. A depressed tracheostomy scar can be aesthetically and functionally unacceptable. Tracheostomy scar treatment aims to fill lost soft tissue volume and correct tracheal skin tug. There are various techniques described to manage post-tracheostomy scars, including the use of autologous tissue or allogenic material and the creation of muscle flaps. In this article, the authors introduce a surgical method using four layers: the scar, the strap muscles, the platysma muscle, and the skin. This procedure has been used in two patients with depressed scar after prolonged tracheostomy placement. The tracheal tug was eliminated in each patient, and an imperceptible cutaneous scar remained. In each case, patient satisfaction was complete. The authors recommend this technique as a simple and effective method of closure for these troublesome tracheostomy scars.

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Background: Selective bromelain-based enzymatic debridement (BED) has emerged as a valid alternative for the treatment of extensive burns, with Total Body Surface Area (TBSA) > 20%. Autologous skin grafting represents the procedure of choice but the scarcity of donor sites remains the main reconstructive challenge. The modified Meek micro-grafting technique may represent a valid strategy to optimize the final outcome. Methods: A single-cohort retrospective analysis was performed, involving nine burn patients (TBSA > 20%) who underwent both BED and subsequently modified Meek technique. Demographic and clinical data (mechanism of injury, surgical treatment, complications, necessity of re-grafting, further surgery and esthetic outcome) were collected. Results: All patients had large burns of mixed and deep dermal thickness (first, second, and third degree). All burns were enzymatically debrided postadmission and covered by the modified Meek technique. Local infection due to poor general conditions was the main complication for all patients. All but two patients survived. The selectiveness of the enzymatic debridement and dermal preservation seemed to improve the quality of scars resulting from micro-grafting. Evaluations performed at 12 ± 2 months postburn showed superior scar quality compared to areas treated with traditional (sheet/mesh) grafts. Conclusion: Combined BED and Meek techniques may provide an effective synergic combination for the treatment of extensive burns.

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Hypertrophic scarring is a significant complication post burn injury, especially for delayed healing after 3 weeks. Burn injuries healing prior to 3 weeks also have the potential to develop hypertrophic scarring, even when prescribed prophylactic conservative scar interventions. A retrospective chart audit reviewed 326 burn patients treated at a paediatric tertiary hospital from 2014 to 2019 who sustained a partial thickness burn, healed >14 days and did not receive skin grafting. A scar was deemed hypertrophic if >1 mm in height. Early hypertrophic scar prevalence was defined as 3-6 months post burn, while persistent hypertrophic scarring was defined as 12-18 months post burn. Median days to wound closure was 18. The prevalence of early and persistent hypertrophic scarring was 56.1% and 16.3%, respectively. Seventeen (5.2%) children underwent medical interventions for scar modulation. Early signs of hypertrophic scarring were seen in just over half the patients presenting to burn therapy and despite scar intervention, persistent hypertrophic scarring was seen in 16.3%. At both time points, just over half of the children presenting healed between 14 and 21 days. Therefore, children healing prior to 21 days have potential to develop hypertrophic scarring.

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Objectives: This study aimed to investigate the presence and severity of inferior turbinate hypertrophy (ITH) in patients with hypertrophic scars (HTS). Methods: This case-control study was conducted with patients diagnosed with HTS during dermatologic examination and a control group without HTS. An otolaryngologist evaluated the presence and severity of inferior turbinate hypertrophy by anterior rhinoscopy. Results: ITH was more common in patients with HTS compared to the control group (64%, and 34%, respectively) (p=0.014). In the HTS group, 48% of patients had grade 2, and 16% had grade 3 ITH; in the control group, 24% had grade 2, and 10% had grade 3 ITH (p=0.046). Also, ITH was higher in patients who complained of pruritus or pain (83%, and 80%, respectively) in the HTS than in asymptomatic HTS patients (p=0.020). Conclusion: A higher number of patients with HTS had ITH compared to the control group, especially those who reported pruritus or pain associated with scar. Given the limited understanding of the full pathogenesis and treatment of HTS and ITH, their association potentially provides new insights into these related conditions.

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Introdução: A síntese de feridas de pele tensionadas é uma área que tem sido alvo de estudos para o desenvolvimento de técnicas de sutura que sejam capazes de realizar o fechamento primário dessas feridas com alívio de tensão, garantindo uma cicatrização adequada e evitando complicações como deiscência, edema, sangramento e infecção. Método: Esta pesquisa tratou-se de um estudo piloto, sendo a primeira apresentação da técnica de Sutura em Polia Retificada para síntese de feridas de pele tensionadas através do acompanhamento prospectivo, duplo-cego, de uma série de casos de 8 pacientes randomicamente admitidos no centro cirúrgico de um hospital de alta complexidade de uma cidade de médio porte. Resultados: A Sutura em Polia Retificada é uma técnica versátil e apta para lidar com feridas de pele tensionadas, uma vez que no intraoperatório conseguiu fechar por primeira intenção lesões de até 6,5 centímetros e de diferentes regiões tensionadas sem necessidade do uso de técnicas mais complexas, como retalhos, enxertos, zetaplastia e fechamento por segunda intenção. Além disso, no pós-operatório, houve redução dos escores da POSAS, indicando um processo de cicatrização satisfatório tanto para os observadores quanto para o paciente. É imprescindível mencionar, também, que o desfecho mais temido no seguimento dos pacientes com feridas tensionadas submetidos a fechamento primário - a deiscência - foi completamente evitado. Conclusão: A técnica é simples, confiável, segura e reprodutível, com curta curva de aprendizagem, de forma que a Sutura em Polia Retificada pode ser considerada como uma nova ferramenta a ser integrada ao arsenal cirúrgico.

Introduction: The synthesis of tensioned skin wounds is an area that has been the subject of studies for the development of suturing techniques that are capable of performing the primary closure of these wounds with tension relief, ensuring adequate healing, and avoiding complications such as dehiscence, edema, bleeding, and infection. Method: This research was a pilot study, being the first presentation of the Rectified Pulley Suture technique for the synthesis of tensioned skin wounds through prospective, double-blind monitoring of a series of cases of 8 patients randomly admitted to the surgical center of a high-complexity hospital in a mediumsized city. Results: Rectified Pulley Suture is a versatile technique suitable for dealing with tensioned skin wounds, since intraoperatively it was able to close, by first intention, lesions measuring up to 6.5 centimeters and in different tensioned regions without the need for the use of more extensive techniques. complex, such as flaps, grafts, Z-plasty, and secondary intention closure. Furthermore, post-operatively, there was a reduction in POSAS scores, indicating a satisfactory healing process for both observers and the patient. It is also essential to mention that the most feared outcome in the follow-up of patients with tension wounds undergoing primary closure - dehiscence - was completely avoided. Conclusion: The technique is simple, reliable, safe, and reproducible, with a short learning curve, so the Rectified Pulley Suture can be considered a new tool to be integrated into the surgical arsenal.

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BACKGROUND: Hypertrophic osteoarthropathy (HOA) is a rare and intricate hereditary disease. The appearance and functional deformity of the forehead caused by thickened folds are the main clinical manifestations of patients with hypertrophic osteoarthropathy. The cause of this disease is still unknown. Currently, surgical treatment has become one of the best strategies, mainly for improving the appearance of the forehead. There has been no literature report on the use of "W"-shaped skin flap resection for thickened forehead skin in patients with hypertrophic osteoarthropathy. METHODS: All cases of hypertrophic osteoarthropathy in our department in the last 7 years, and previous literature on hypertrophic osteoarthropathy, were reviewed. RESULTS: A total of 5 cases of hypertrophic osteoarthropathy in our department (mean age 21 years, all male patients) were reviewed. All patients underwent open surgery to remove the thickened skin on the forehead or the wrinkles and gyrus-shaped scalp. The jagged skin tissue was removed (8-9) cm × (1-2.5) cm × 0.5 cm. The folds and thickness of the frontal skin of the patients were greatly improved after the operation. Patient satisfaction with the treatment outcomes was unanimous. However, one case experienced a postoperative wound infection during follow-up. The utilization of the "W"-shaped excision technique allowed for the maximal removal of excessively diseased tissue, thereby facilitating a smoother resolution of the depression. CONCLUSIONS: A total of 5 cases of hypertrophic osteoarthropathy were treated in our department, and all of them underwent frontal skin "W"-shaped excision, which was safe, feasible, and practical, and the postoperative results were satisfactory. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

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Introduction: Many studies have been done on the use of aloe vera in wound healing, but fewer studies were done on the influence of this material on the reduction of the alar scar. Therefore, we evaluated the effect of a newly made aloe vera cream on alar wound healing after rhinoplasty. Materials and Methods: This was a randomized, double-arm, parallel-group, double-blind controlled trial and was done from June 2021 to February 2022. External wedge resection was done for all patients. The patients were randomly assigned to receive aloe vera cream (n=31) (intervention group) or Face Doux cream (comparison group) (n = 29). A pharmacist prepared the aloe vera cream. The primary outcome measure was the wound scar status which was assessed by two Questionnaires, including the mean Patient Scar Assessment Questionnaire (PSAQ) and Vancouver Scar Scale (VSS). Randomization and Blinding were done. Results: The mean PSAQ was significantly lower in group A after two weeks (26.9 versus 31.5, P<0.001), after two months (15.7 versus 19.6, P=0.04), and six months follow-up (8.8 versus 11.8, P=0.005). The mean VSS was significantly lower in group A after two weeks (5.6 versus 7.1, P=0.001), after two months (3.5 versus 4.9, P=0.002), and six months (1.2 versus 2.7, P<0.001). Repeated measurement analysis showed that both interventions significantly affected PSAQ and VSS. Conclusion: Although both interventions had a significant effect on PSAQ and VSS, compared to Face Duox, the topical use of Aloe Vera cream significantly reduced scar formation after alar resection, both statistically and clinically.

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Introduction: Scar massage is a commonly used treatment in hand therapy. The current empirical evidence that supports it is disparate and of variable quality, with no established effective dosage and method proposed. This study aimed to identify the current practice among Australian hand therapists using massage as an intervention for scarring following surgery to the hand and upper limb. Methods: A purposely designed self-report online survey was emailed to current members of the Australian Hand Therapy Association (n = 958). Data collected included demographics, intervention techniques, conditions treated and protocols, scar assessment and knowledge and training about scar massage as a clinical intervention. Results: A total of 116 completed questionnaires were received (a response rate of 12.1%). All respondents used scar massage as part of their clinical practice with 98% to improve soft tissue glide (n = 114), 92% for hypersensitivity (n = 107), and 84% to increase hand function (n = 97). Only 18% (n = 21) of respondents used standardised outcome measures, and most therapists had learned scar massage from a colleague (81%). Conclusions: Commonalities in how respondents implemented scar massage were found. Participants reported relying primarily on clinical experience to inform their practice. Whilst scar massage was widely used, few respondents had received formal skills training or completed outcome measures regularly to formally evaluate its clinical efficacy or impact. Replication of this study with a larger international sample of participants is warranted to determine if these findings reflect general practice.

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Keloids seem to overexpress cyclo-oxygenase-2 (COX-2), suggesting a role in its deregulated pathway in inducing an altered epithelial-mesenchymal interaction, which may be responsible for the overgrowth of dermal components resulting in scars or keloid lesions. This study aimed to evaluate the effect of Parecoxib, a COX-2 inhibitor, on cell growth in fibroblast primary cultures obtained from human keloid tissues. Tissue explants were obtained from patients who underwent intralesional excision of untreated keloids; central fractions were isolated from keloid tissues and used for establishing distinct primary cultures. Appropriate aliquots of Parecoxib, a COX-2 inhibitor were diluted to obtain the concentration used in the experimental protocols in vitro (1, 10 or 100 µM). Treatment with Parecoxib (at all concentrations) caused a significant decrease in cellular growth from 24 hours onwards, and with a maximum at 72 hours (P < .02). Moreover, at 72 hours Parecoxib significantly reduced cellular vitality. Parecoxib treatment also induced an increase in fragmented nuclei with a maximum effect at 100 µM and a significant decrease in Bcl-2 and an increase in activated caspase-3 protein levels at 72 hours compared with control untreated cultures. Our findings suggest a potential use of the COX-2 inhibitor, Parecoxib, as the therapy for keloids.

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BACKGROUND: Prevailing tension-reducing suture methods have a spectrum of issues. This study presents a straightforward yet highly efficacious suture technique known as the Split-level Folding, Step-type Tension-relieving Suture technique, which could play a pivotal role in preempting incisional scarring. AIMS: To introduce Split-level Folding, Step-type Tension-relieving Suture technique and assess its effect on scar minimization. METHODS: A retrospective analysis of 64 patients who underwent treatment utilizing the proposed suturing methodology. Assessment parameters included the Patient and Observer Scar Assessment Scale (POSAS), the Vancouver Scar Scale (VSS), scar width, complications, and all evaluated at 6- and 12-month postoperatively. RESULTS: At 12-month follow-up, the POSAS and VSS scores in the normal suture group (32.58 ± 5.43, 3.58 ± 1.39) were considerably higher than the step-type suture group (29.75 ± 3.56, p = 0.0007; 2.78 ± 1.17, p = 0.0006). Moreover, the step-type suture group showcased a significantly narrower average incision scar width (1.62 ± 0.36) than the normal suture group (1.87 ± 0.42, p = 0.0004). This novel tension-relieving suture technique that effectively circumvents the occurrence of persistent localized eversion and other complications often associated with traditional tension-relieving sutures. CONCLUSIONS: The Split-level Folding, Step-type Tension-relieving Suture technique emerges as a highly promising option for averting incisional scarring. This suture method works well for incisions on the chest, back, and extremities, resulting in significantly better long-term outcomes.

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OBJECTIVE: Scar adherence due to a pathological healing process can cause physical and psychological disturbance. Soft tissue mobilisation (STM) techniques are widely used to treat and prevent scar adherence, but little is known on their effects. We aimed to analyse the effect of STM in patients with subacute post-surgical scar adhesions affecting the extremities. METHOD: A single-group quasi-experimental study was conducted on consecutive patients undergoing post-surgery limb rehabilitation. Patients with a baseline Adhesion Severity (AS) index of <0.5 at the worst scar point, as measured by the Adheremeter, were eligible. All patients who completed a minimum of five manual treatment sessions were included. The primary outcome was the AS index and the secondary outcome was the Italian version of the Patient and Observer Scar Assessment Scales (POSAS-I). RESULTS: A cohort of 19 patients underwent an average of eight STM sessions over a period of one month. The AS index value increased from a median of 0.12 at baseline (interquartile range (IQR): 0.05-0.25) to 0.41 post-treatment (IQR: 0.26-0.63; median change: 0.24; IQR: 0.16-0.40; p<0.001). A large effect size was observed for both AS and Observer Scar Assessment Scale (OSAS-I) (Cohen r=0.6), with a large probability of superiority (PS) (87% and 86%, respectively). A moderate effect was observed for the Patient Scar Assessment Scale (PSAS-I) (Cohen=0.4; PS=71%). Pre-post treatment changes exceeded the minimal detectable changes for the AS and OSAS-I in 68% of subjects, and for PSAS-I in 21% of subjects. CONCLUSION: STM manual techniques may produce a large effect on the mobility of adherent subacute post-surgical scars.

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The morphology of facial scars shows a wide variation in terms of texture and colour. To date, there are no reliable predictors of aberrant scarring. We conducted a retrospective analysis to identify factors associated with specific scar features and types. Photographs and medical records of 428 patients with facial scars were retrospectively reviewed. Patients with keloids were excluded. The mean age of the patients was 45.43 ± 23.13 years with a male-to-female ratio of 1:1.36. Atrophic scars were the most common (42.8%), followed by flat scars (38.7%) and hypertrophic scars (18.5%). Scars on the forehead were more likely to be atrophic, whereas scars on the chin/jaw and around the mouth were more likely to be hypertrophic. Hypopigmentation was significantly more common in scars located on the forehead. Redness (erythema) was significantly more common in scars located on the chin/jaw. Old scars were less likely to be erythematous, and hypertrophic. Atrophic scars were more common in younger patients. Scars caused by dermatologic conditions, such as acne, were more likely to be atrophic, whereas surgical scars had the lowest risk of being atrophic or hypertrophic. In conclusion, the location, onset, and cause of facial scars were associated with specific features of scars.

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OBJECTIVE: This research compares the efficacy of subcutaneous soft tissue and temporalis fascia in tympanic membrane grafting for large tympanic membrane perforations. METHODS: A retrospective cohort study compared tympanic membrane graft success rate and hearing outcomes in 248 patients who underwent tympanoplasty using subcutaneous soft tissue (n = 118) or temporalis fascia (n = 130) via the post-auricular approach. RESULTS: Comparable results were observed in both groups. Tympanic membrane graft success rate was 98.3 per cent (116 ears) in the subcutaneous soft tissue group and 98.5 per cent (128 ears) in the temporalis fascia group. The rate of air-bone gap closure within 20 dB was 54.2 per cent (64 ears) and 60.0 per cent (78 ears) in the soft tissue and temporalis fascia groups, respectively (p = 0.360). CONCLUSION: Subcutaneous soft tissue is a reliable and readily available tympanic membrane graft material in both revision and primary tympanoplasty for large tympanic membrane perforations.

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Objective:To explore the clinical effect of composite skin transplantation combined with systemic rehabilitation in the treatment of extensive scar contracture deformity around the popliteal fossa in children after burns.Methods:A retrospective observational research method was adopted. Seventeen children with extensive scar contracture deformities around the popliteal fossa after burns who met the inclusion criteria and were admitted to the First Affiliated Hospital of Air Force Military Medical University from March 2018 to April 2022 were selected. Among them, there were 10 males and 7 females, aged 2-11 years, with scar contracture deformities lasting from 10 months to 9 years, all located around the popliteal fossa, 10 cases of right popliteal fossa, 5 cases of left popliteal fossa, 2 cases of bilateral popliteal fossa, scars around the popliteal fossa result in a knee joint extension angle of only 95° to 115°. The scar contracture during surgery was thoroughly released, joint mobility was restored, so as to form a secondary wound range of 10 cm×8 cm-20 cm×13 cm. In stage Ⅰ, after completely releasing the scar contracture, the wound was covered with negative pressure closure drainage (VSD) for 2-3 days. In stage Ⅱ, a large autologous blade thick scalp and allogeneic decellularized dermal matrix composite graft was performed to repair the wound around the popliteal fossa. After 8-10 days of surgery, the dressing was changed to check the survival of the skin graft. One week after the skin graft survived, a 12 month orderly knee joint function training was conducted under the guidance of a rehabilitation therapist. Postoperative sequential treatment with a combination of strong pulsed light and ultra pulsed carbon dioxide lattice laser for 5-7 courses of significant scar hyperplasia in the skin graft area and edges.Results:15 cases of pediatric patients had good skin graft survival; One patient developed a wound due to partial displacement of the transplanted autologous scalp, and one patient developed a plasma swelling under the limb graft, which was drained through an opening. Two patients underwent dressing changes for 3 weeks before the wound healed. After follow-up for 6 to 36 months, the elasticity and appearance of the skin graft were similar to those of a medium thickness skin graft. Children with knee joint contracture were able to fully extend to 180°, and knee joint function was significantly improved. There was no scar formation or hair loss in the donor skin area.Conclusions:The combination of composite skin transplantation and systematic rehabilitation has a good effect on the treatment of extensive scar contracture around the popliteal fossa in children after burns, avoiding the problem of scars left in the donor area due to autologous skin grafting.

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ABSTRACT Purpose: Recently, hyaluronic acid (HA) was proposed as a promising option for the treatment of acquired lower eyelid cicatricial ectropion. However, this effect was not confirmed by quantitative assessments. This study aimed to assess the effect of hyaluronic acid on the treatment of acquired lower eyelid cicatricial ectropion. Methods: Eight patients with acquired lower eyelid cicatricial ectropion (13 eyelids) were treated with a single 1 mL injection of hyaluronic acid in the preseptal area of the lower eyelid. Evaluation of symptoms and biomicroscopic exam was performed before and 30 days after hyaluronic acid injection. Quantitative analysis of the lower eyelid position (with and without lid traction) was determined before and 30 days after hyaluronic acid injection through standard photographs analyzed using the ImageJ. Results: All patients experienced partial improvement of symptoms. The lower eyelid position was significantly lifted after hyaluronic acid injection with a significant reduction of medial and lateral angles, reduction of the margin reflex distance, and total and medial ocular fissure area. However, signs of lid margin inflammation and corneal punctate keratitis persisted. Conclusions: Hyaluronic acid injected in the pre-septal area of the lower eyelid improved acquired lower eyelid cicatricial ectropion symptoms and significantly lifted the position of the lower eyelid. Further studies, with a large number of participants and a long-term follow-up period, are needed to better determine the permanency of the effects of hyaluronic acid injections on the treatment of acquired lower eyelid cicatricial ectropion.

RESUMO Objetivo: Recentemente, o ácido hialurônico foi proposto como promissor no tratamento do ectrópio cicatricial adquirido da pálpebra inferior. No entanto, não foram feitas avaliações quantitativas para confirmar este efeito, motivo que levou a realização do presente estudo que visou avaliar o efeito do ácido hialurônico no tratamento do ectrópio cicatricial adquirido da pálpebra inferior. Métodos: Oito portadores de ectrópio cicatricial adquirido da pálpebra inferior (13 pálpebras) foram tratados com uma única dose de 1 mL de ácido hialurônico, injetada na área pré-septal da pálpebra inferior. Os sintomas e o exame biomicroscópico foram realizados antes e 30 dias após a injeção do ácido hialurônico. A análise quantitativa da posição palpebral inferior (com e sem tração palpebral) foi determinada antes e 30 dias após a injeção do ácido hialurônico por meio de fotografias que foram analisadas usando o programa ImageJ. Resultados: Todos os pacientes apresentaram melhora parcial dos sintomas. A posição da pálpebra inferior foi elevada significativamente após a injeção do ácido hialurônico, com redução significativa dos ângulos medial e lateral, da distância entre o reflexo pupilar e a margem da pálpebra inferior, da área de fissura palpebral total e da área medial. No entanto, sinais de inflamação da margem palpebral e ceratite puntata da córnea persistiram. Conclusões: O ácido hialurônico injetado na área pré-septal da pálpebra inferior, melhorou os sintomas do ectrópio cicatricial adquirido da pálpebra inferior e elevou significativamente a posição da pálpebra inferior. Estudos com maior número de participantes e período de acompanhamento mais longo são necessários para melhor determinar os efeitos das injeções de ácido hialurônico a longo prazo no tratamento do ectrópio cicatricial adquirido da pálpebra inferior.

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ABSTRACT Purpose: To assess the outcomes of deep anterior lamellar keratoplasty or penetrating keratoplasty at the scar and the edema stages. Methods: Forty-five patients (45 eyes) with keratoconus scar stage (scar group, n=26; penetrating keratoplasty a subgroup, n=7; deep anterior lamellar keratoplasty b subgroup, n=19) and keratoconus edema stage (edema group, n=19; penetrating keratoplasty c subgroup, n=12; deep anterior lamellar keratoplasty d group, n=7) who received penetrating keratoplasty or deep anterior lamellar keratoplasty from 2000 to 2022 were retrospectively studied. At 1, 6, and 12 months after surgery, the best-corrected visual acuity, astigmatism, spherical equivalent, corneal endothelial cell density, and complications were analyzed. Results: The best-corrected visual acuity and average corneal endothelial cell loss rate were not significantly different between the scar and edema groups (p>0.05). At 6 and 12 months after surgery, the astigmatism and spherical equivalent in the scar group were significantly lower than those in the edema group (p<0.05). The spherical equivalent of the deep anterior lamellar keratoplasty b subgroup was lower than that of the penetrating keratoplasty a subgroup in the scar group 6 months after surgery (p<0.05). In the edema group, there was no significant difference in spherical equivalent between subgroups (p>0.05). There were no significant differences in best-corrected visual acuity and astigmatism between subgroups within the two groups (p>0.05). In comparison to the scar group, the edema group experienced more complications. According to a survival analysis, there was no statistically significant difference between the scar group and the edema group regarding the progression of vision. Conclusions: In terms of the outcomes and prognosis for vision after keratoplasty with edema stage and scar stage, deep anterior lamellar keratoplasty may be as effective as penetrating keratoplasty.