A New Design for Forearm Skin Flaps for Areas that Do not Require Additional Grafting.

Forearm skin flaps are widely used to reconstruct oral cancer due to their advantages, such as vascular stability, simple preparation, and a high success rate. However, traditional forearm skin flaps have shortcomings: the donor site requires grafting, which increases surgical trauma by creating a second surgical area, and the scarring at the donor site significantly affects the esthetics of the forearm. Therefore, we have designed a new ^-shaped radial forearm skin flap, in which the flap is designed as 2 semi-elliptical subunits.

[Clinical analysis of immune function and intestinal flora changes in patients with oral squamous carcinoma before and after treatment].

Purpose: To characterize the alterations of intestinal bacteria and immunological function in patients with oral squamous cell carcinoma(OSCC) before and after treatment.

Methods: From September 2020 to September 2021, 28 patients suffering OSCC and 10 healthy volunteers undergoing treatment at our hospital were enrolled in the study. Conventional treatment regimens were administered to OSCC patients and the changes in immune function, intestinal bacteria composition and short-chain fatty acids were measured 1 week before and 6 months after therapy.

Clinical application of double eyelid incision in internal fixation of zygomatic-frontal fracture.

Objectives: This study aimed to investigate the clinical application effect of double eyelid incision in the internal fixation of suturae zygomatico-frontalis fracture.

Methods: A total of 12 patients with zygomatic complex fracture and evident fracture segment displacement, accompanied by facial collapse or mouth opening limitation and other functional disorders, were selected for open reduction and internal fixation. The suturae zygomatico-frontalis fracture was fixed using a double eyelid approach.

[Biomechanical study of cystic lesions of the mandible based on a three-dimensional finite element model].

Objective: To analyze the biomechanics of cystic lesions in the mandibular body in a three-dimensional (3D) finite element model.

Methods: A 3D finite element model of cystic lesion of the mandibular body was constructed based on the CT images of the mandible of a healthy adult female volunteer with normal occlusion. The size of the cyst and the residual bone wall were analyzed when the lesion area approached the stress peak under certain constraints and loading conditions.