Low-level laser irradiation (GaAlAs) accelerates bone regeneration in MPAS after SARME. However, the optical density measurements after 7 months of follow-up were lower in comparison with the preoperative measurements.

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.

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The purpose of this study was to evaluate the effect of surgically assisted rapid maxillary expansion on the sagittal and vertical maxillary planes. Thirty-three adult patients aged between 18 and 40 years who required surgically assisted rapid maxillary expansion were included in this study. They were divided into two groups: the Haas type expander (16) and the Hyrax type expander (17). All patients were subjected to subtotal LeFort I osteotomy with pterygomaxillary disjunction. Lateral cephalometric radiographs were taken during the preoperative assessment (T1), soon after completion of the expansion (T2), and 4 months after the end of the expansion (T3). The following cephalometric measures were obtained in each of the three radiographs for all the patients: SNA, SN palatal plane, Frankfurt horizontal plane. NA, CF-A, CF-NA, Nperp-A, CF-A, Frankfurt horizontal plane-ANS, and Frankfurt horizontal plane-PNS. Statistically significant changes were observed in the cephalometric measures: SNA, Frankfurt horizontal plane, NA, Nperp-A in the patients in the Haas group, and CF-A in the patients in the Hyrax group, demonstrating anterior displacement of the maxilla. The cephalometric measures SN.palatal plane, CF-A, CF-NA, Frankfurt horizontal plane-ANS, and Frankfurt-PNS plane that evaluated vertical displacement did not show changes in either group. The surgically assisted rapid maxillary expansion caused anterior displacement of the maxilla in both groups, but only the Haas group had statistical significance. Neither the Haas group nor the Hyrax group showed vertical displacement of the maxilla. When Hyrax and Haas groups were compared, there were no statistically significant differences for sagittal and vertical changes.

Spirometric parameters change on the 2nd and 7th postoperative days and tend to normalize on the 15th day. Postoperative pain, BMI, and increased IAP are not related to these changes. The use of compressive garments increases the IAP.