Case Report of a Patient With Malignant Peripheral Nerve Sheath Tumor Treated With Wide Resection.

Malignant peripheral nerve sheath tumors are soft tissue sarcomas originating from peripheral nerves. They are more frequently diagnosed in individuals with neurofibromatosis and tend to affect young men more often than women. The most common sites for these tumors within the peripheral nerve sheath are in the pelvis and the distal femur. Although chemotherapy and radiotherapy are not frequently used, it should be noted that in some cases, postoperative radiotherapy and chemotherapy may be beneficial. The primary treatment approach typically involves the complete surgical removal of the tumor. Here, we discuss the case of our patient whom we successfully treated with extensive resection and followed up with postoperative radiotherapy at our clinic.

Angle bisector method to determine the accurate angle for tibiofibular syndesmotic fixation: A validation study with 3D-printed anatomical models.

PURPOSE: This study aimed to validate the angle bisector method on 3D-printed ankle models to reveal whether it aids in placing syndesmotic screws at an accurate trajectory that is patient- and level-specific and also not surgeon-dependent. METHODS: DICOM data of 16 ankles were used to create 3D anatomical models. Then the models were printed in their original size and two trauma surgeons performed the syndesmotic fixations with the angle bisector method at 2 cm and 3.5 cm proximal to joint space. Afterward, the models were sectioned to reveal the trajectory of the screws. The photos of the axial sections were processed in a software to determine the centroidal axis which is defined as true syndesmotic axis and analyze its relationship with the screws inserted. The angle between the centroidal axis and syndesmotic screw was measured by two-blinded observers 2 times with 2 weeks interval. RESULTS: The average angle between the centroidal axis and screw trajectory was 2.4° ± 2° at 2 cm-level and 1.3° ± 1.5° at 3.5 cm-level, indicating a reliable direction with minimal differences at both levels. The average distance between fibular entry points of the centroidal axis and screw trajectory was less than 1 mm at both levels indicating that the angle bisector method can provide an excellent entry point from fibula for syndesmotic fixation. The inter- & intra-observer consistencies were excellent with all ICC values above 0.90. CONCLUSION: The angle bisector method provided an accurate syndesmotic axis for implant placement which is patient- & level-specific and not surgeon-dependent, in 3D-printed anatomical ankle models.

Bibliometric analysis of 100 most influential papers related to septic arthritis of native joints.

Aim: Bibliometric studies have gained popularity since they are able to define the characteristics of articles on specific subjects. The aim of this study was to analyze the characteristics of 100 most-cited papers related to septic arthritis of the native joints. Methods: Web of Science database was analyzed and 100 most-cited articles about septic arthritis were determined. The characteristics of the articles including publication year, country, journal, study type, and sponsorship were recorded and investigated for any possible relationship with citation numbers. The visualization of the most commonly used keywords was made by software. Results: The highest citation number and density were 309 and 21.6, respectively. The highest contribution was from the USA with 44 articles. The most common study type was case series with 26 articles. Annals of the Rheumatic Diseases journal had the highest number of articles with 8 papers. Fifteen studies were funded. The average citation density of review articles was significantly higher than in clinical and basic science studies (p < 0.001). Citation density was positively correlated with publication year and institution number, while it was negatively correlated with the level of evidence. Conclusion: This study summarizes the general characteristics and research trends of the 100 most influential septic arthritis papers. Citation density and level of evidence performance were better in more recent articles. Additionally, citation density was higher in papers that included contributions from multiple institutions and papers with a high level of evidence. However, a high level of evidence is lacking indicating the need for better study design in future research.