Some Remarks on Results Related to ∇-Convex Function

In the present article, we give new techniques for proving general identities of the Popoviciu type for discrete cases of sums for two dimensions using higher-order ∇-divided difference. Also, integral cases are deduced by different methods for differentiable functions of higher-order for two variables. These identities are a generalization of various previously established results. An application for the mean value theorem is also presented

Comparison of Primary Simple Closure and Limberg Flap Technique in Pilonidal Sinus

Introduction Pilonidal sinus is a disease affecting the intergluteal region. Many surgical techniques have been described for the treatment of this condition. The objective of this study was to compare Limberg flap technique and primary simple closure in terms of postoperative discharge. Materials and methods It was a randomized prospective study conducted at the Department of Surgery—removed for blind review-- from December 2018 to June 2021. Sixty male patients aged 15-30 years presenting with pilonidal sinus for the first time were included in the study. Patients with comorbidities and the American Society of Anesthesiologists (ASA) class three and above were excluded from the study. Patients were divided into two groups by lottery method. Data was entered and analyzed using Statistical Package for Social Sciences (SPSS) version 23.0. Chi-square tests were applied. A p-value of ≤ 0.05 was considered significant. Results The postoperative discharge was found in just five (16.3%) of the patients in group A (Limberg flap technique), while the discharge was present in 12 (40%) of the patients in group B (primary simple closure; p = 0.045). Conclusion Limberg flap technique is superior to primary simple closure in terms of postoperative discharge