Purpose: Preoperative imaging evaluation may be useful for determining the position of recti abdominis muscles before their correction. The purpose of this study is to evaluate the accuracy of ultrasonography to measure the width of rectus abdominis muscle diastasis. Methods: Rectus diastasis was measured by ultrasonography preoperatively in 20 females. Rectus diastasis was measured in seven levels along the anterior rectus sheath by ultrasound after sustained deep inspiration and after expiration. Rectus diastasis, at the same levels, was also measured after its exposition during abdominoplasty by two independent observers, using a surgical compass. These values were compared using Wilcoxon's statistical text, for non independent values. Results: There was no significant difference between the values obtained by ultrasound and those measured during surgery in the supra-umbilical levels and at the level of the umbilicus. However, below the umbilicus these values differed significantly, showing smaller values in the imaging evaluation. Conclusion: Ultrasonography is an accurate method to measure rectus diastasis above the umbilicus and at the umbilical level. Key words: Abdominal Wall. Abdominal Muscles. Ultrasonography. Diagnostic Imaging. Surgery, Plastic. Rectus Abdominis. RESUMO Objetivo:Estudos radiológicos pré-operatórios podem ser úteis para determinar a posição dos músculos retos do abdome antes de sua correção. O objetivo deste estudo é avaliar a acurácia da ultra-sonografia para medir a largura da diástase dos músculos retos do abdome. Métodos: A diástase dos músculos retos foi medida pela ultra-sonografia, no pré-operatório em 20 mulheres. A diástase dos retos foi medida em sete níveis da bainha anterior dos retos foram examinados com ultrasom após inspiração profunda sustentada e após expiração. A diástase dos retos, nos mesmos níveis, foi também medida após sua exposição durante a abdominoplastia, por dois observadores independentes, usando compasso cirúrgico. As medidas foram comparadas usando o teste estatístico de Wilcoxon para dados não independentes. Resultados: Não houve diferença significante entre as medidas ultra-sonográficas e intra-operatórias nos níveis supra-umbilicais e na cicatriz umbilical. Todavia, inferiormente à cicatriz umbilical, essas medidas diferiram significantemente sendo as ultrasonográficas menores nestes pontos. Conclusão: A ultra-sonografia é um método acurado para medir a diástase de retos na região supra-umbilical e no nível do umbigo.
BackgroundBreast augmentation with silicone implants is one of the most frequently performed cosmetic surgeries worldwide. Surgical site infection (SSI) remains an important complication of this procedure. One of the most important risk factors for SSI is the presence of microorganisms on the skin surrounding the wound. Guidelines by the Centers for Disease Control (CDC) recommend that surgical wounds be covered with a sterile dressing for 24 to 48 hours. However, a recent study showed that the application of a dressing for six days after breast reduction reduced wound colonization by coagulase-negative staphylococci.Methods/DesignA randomized clinical trial was designed to assess two protocols of postoperative wound care to determine how the application duration of the postoperative dressing influences wound colonization in patients undergoing breast augmentation with silicone implants. Women aged between 18 and 60 years who are candidates for breast augmentation with silicone implants will be randomly allocated to group I (n = 48), in which the dressing will be removed on the first postoperative day, or group II (n = 48), in which the dressing will be removed on the sixth postoperative day. Cutaneous colonization will be assessed by cultures of samples of skin flora taken from the wound region. The incidence of SSI, using standardized CDC criteria, and the perceptions of patients towards the dressing will be secondary outcomes.DiscussionAn important component of SSI prevention is to minimize all possible risk factors, and the application of postoperative dressing plays a key role in this endeavor. The results of this clinical trial may help to standardize postoperative wound care after breast augmentation with silicone implants.Trial registrationThis trial was registered on 12 March 2012 with ClinicalTrials.gov (identifier: NCT01553604).
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