Realizing in-house algorithm-driven free fibula flap set up within 24 hours: a pilot study evaluating accuracy with open-source tools.

Objective: This study aims to critically evaluate the effectiveness and accuracy of a time safing and cost-efficient open-source algorithm for in-house planning of mandibular reconstructions using the free osteocutaneous fibula graft. The evaluation focuses on quantifying anatomical accuracy and assessing the impact on ischemia time.

Methods: A pilot study was conducted, including patients who underwent in-house planned computer-aided design and manufacturing (CAD/CAM) of free fibula flaps between 2021 and 2023.

Clinical utility of a protein-based oncopanel in patients with end-stage head and neck cancer.

In a prospective clinical initiative, we selected heavily pretreated head and neck carcinoma patients and assessed the clinical utility of a protein-based oncopanel for identification of potential targetable markers. Tumor samples of 45 patients were evaluated using a 12-marker immunohistochemistry panel. The primary end point was the prevalence of potentially actionable markers.

Three-phase bone scintigraphy for imaging osteoradionecrosis of the jaw.

Unlabelled: This study evaluates the diagnostic utility of 3-phase bone scintigraphy for diagnosing osteoradionecrosis of the jaw (ORNJ).

Methods: Thirty-two consecutive patients with a history of radiation to the head and neck region (range, 62-70 Gy; mean, 68 Gy; median, 69 Gy) due to squamous cell cancer and suspected ORNJ underwent 3-phase bone scans after injection of 520 to 750 MBq of Tc-MPD. In addition to planar scans, tomographic images (SPECT) were acquired in the second phase and SPECT/CT images during the third phase.

Tissue engineering of human oral mucosa on different scaffolds: in vitro experiments as a basis for clinical applications.

Objectives: The lack of oral mucosa in oral and maxillofacial surgery for intraoral grafting after trauma or tumor resection can be balanced by tissue-engineered oral mucosa. The aim of this study was to generate a tissue-engineered oral mucosa equivalent (OME).

Study Design: First, primary oral fibroblasts were cultured for 7 days on different materials: Tissufoil E (TFE), dermal regeneration template (DRT), and Vicryl.

Cryopreservation of autologous bone grafts: an experimental study on a sheep animal model.

A sheep animal model was used to investigate the clinical behavior of autologous bone transplants after cryopreservation. The aim of the present study was to compare fresh, cryopreserved and deep-frozen bone transplants in terms of their osseointegration. We used a serum-free cryopreservation protocol with DMSO as cryoprotectant for the bone transplants, which were harvested from the iliac crest of the sheep.

[Clinical and immunohistochemical findings of intra- and extraoral angiosarcomas].

Purpose: A clinico-pathologic study of typical symptoms of intra- and extraoral angiosarcomas and clinical course under therapy is presented as well as an analysis of the immunohistochemical differential diagnosis of the tumour specific formed spaces.

Patients And Methods: Four male patients aged 63-78 years suffered from angiosarcomas of the maxillary sinus, the bucca (two patients) and the alveolar ridge of the lower jaw.

Histopathology: For comparative analysis paraffin embedded tissue of the initial biopsies was available.

Possibilities and limitations of current stereo-endoscopy.

Background: Stereo-endoscopy has become a commonly used technology. In many comparative studies striking advantages of stereo-endoscopy over two-dimensional presentation could not be proven. To show the potential and fields for further improvement of this technology is the aim of this article.

Comparison between three-dimensional presentation of endoscopic procedures with polarization glasses and an autostereoscopic display.

Background: Most endoscopic procedures are done with a two-dimensional (2D) view or a spatial presentation with polarization glasses. A new method of presenting three-dimensional (3D) spatial views is the autostereocopic display. We compared the performances of untrained test persons using these methods.