View clinical trials related to Skin Graft.
Filter by:The purpose of this study was to explore the accuracy of sentinel skin grafts from the same donor source in diagnosing renal allograft rejection, and to provide new ideas and options for the later clinical diagnosis of renal allograft rejection. Further, try to provide timing guidance for early immunization intervention.
Burning produces changes in the biomechanical properties of the skin causing limitation of movement. The increase in skin suppleness is very important in the rehabilitation process, since its increase makes therapeutic interventions aimed at increasing the range of motion, thus improving functional pattern. Will be evaluated 60 volunteers of both sexes aged 20-80 years seen at the Burns Unit of the Clinical Hospital of the Faculty of Medicine of Ribeirão Preto. There will be a traditional physical therapy evaluation as well as evaluation of the specific characteristics of the burn and scar. The temperature of the region will be assessed by thermography, and biophysical parameters and biomechanical skin evaluated by Cutometer and their accessory probes (mexameter, reviscometer, sebometer) before, immediately after and 10, 20 and 30 minutes of application of therapeutic resources. Volunteers will undergo continuous application of ultrasound with 3 MHz and intensity of 1 W/cm2 in the region due to scar deep second degree burn or third degree, and the application time of 2 minutes for each effective radiation area of the head (ERA) in a predetermined region of 9X5 cm a total of 4 minutes of application, therapy paraffin 20 minutes and 4 minutes endermology negative pressure between 100 and 200mmHg, in a continuous mode with glass head (1.5cm in diameter .) Applications will be set by random draw (design crusader cross-over) with an interval of 7 days between applications (wash-out). The data will be submitted to analysis of normality by the Shapiro-Wilk test, and the behavior of the effect between groups and pre-and post-intervention will be evaluated by two-way ANOVA followed by post-hoc (Bonferroni) or Friedman, p <0.05
In reconstructive surgery , most losses of cutaneous substance require the use of a thin skin graft . This technique allows epidermization of the defect by applying a thin layer of autologous epidermis. It does not reconstitute the injured skin. Transplants cause retractile scars, adherent to the deep plan, that may require revision surgery . Since a decade , dermal matrices are mainly used in burned skin centers . The collagen -elastin matrix has the advantage to set up in the same operation that the skin graft and contain elastic fibers , two assets which improve the results of skin grafting. Objective: Evaluation of the clinical efficacy of the addition of a dermal matrix to skin graft on Skin Foldability, at day 360. Methodology: This is a multicenter randomized study (CHU Caen , Amiens, Rouen and Lille) Conduct of the study : The transplant will be performed according to the protocol defined between inter -region surgeons. The implementation of the dermal matrix will be in the same surgical technique as thin skin graft ( group 1 ) or the thin skin graft will be performed alone ( group 2) time . Evaluation Criteria Main : Skin Foldability ( Uf ) assessed grafted site will be compared to the opposite side ungrafted evaluated at Day 360 . Quantitative data will be measured by a cutometer Skin Elasticity Meter 580 (Courage and Khazaba Electronic GmbH). To achieve the main objective, it is planned to compare the ratio between Uf graft site and the opposite healthy site between two groups: skin + matrix graft , or skin graft only. Thus, the Wilcoxon test for independent samples will be used to settle bilateral formulation between the null hypothesis ( there is no difference between the two groups ) and the alternative hypothesis ( there is a difference between the two groups ) . In determining the overall risk of first species to 5% and the power of this test to detect the 90% expected under the alternative hypothesis difference should be the main criterion for evaluating at least 59 patients in each group so 118 patients total. Prospect If the contribution of a dermal matrix in loss of skin substances improves skin pliability and reduces pain , functional and aesthetic sequelae grafts thin skin , the dermal matrix may be proposed as a complementary treatment in these indications.