Alessandro Ayres Vianna

Objective: This study aimed to evaluate the outcomes of the Ishiguro technique in the treatment of flexion deformity of the interphalangeal distal (IFD) joint, known as bony mallet finger (BMF) Albertoni Type C2, addressing a common condition that may cause functional impairment if not adequately treated. Methods: All cases of patients with Albertoni Type C2 bony mallet finger (BMF) who underwent the Ishiguro method between March 2018 and February 2023 were included, with a minimum postoperative follow-up of five months; cases of patients who did not complete the minimum five-month postoperative follow-up were excluded. Epidemiological data (age, sex, dominance) and fracture-related information (affected finger, fragment size, time from trauma to surgery, follow-up duration) were analyzed. Outcomes included anatomic reduction, union, return to activities, pain, flexion deficit, passive extension of the affected finger, passive extension of the contralateral finger, and Crawford criteria. Results: None of the analyzed characteristics—such as age, affected finger, interval between trauma and surgery, fragment size, and union—significantly influenced anatomic reduction (p > 0.05). The Crawford scale, as well as anatomic reduction, showed no significant impact (p > 0.05). However, all patients with positive results on the Crawford scale demonstrated union (p = 0.063). Conclusion: In our series, more than half of the patients achieved good or excellent results, predominantly characterized by anatomic reduction. No significant associations were identified with variables such as age, affected finger, time from trauma to surgery, fragment size, bone union, or anatomic reduction. These findings suggest that the Ishiguro technique may be effective in the treatment of BMF Albertoni Type C2. Level of Evidence III; Retrospective Study.

The franciscana dolphin (_Pontoporia blainvillei_), a small cetacean native to the Southwestern Atlantic Ocean (SAO), is critically threatened by bycatch in gillnet fisheries and habitat degradation. The Franciscana Management Area (FMA) Ia, located in Espírito Santo, Brazil, harbors the most endangered population of small cetaceans in the SAO. The Doce River region represents a vital habitat for this species, particularly following the 2015 mining waste spill, which further disrupted local ecosystems. Through drone-based monitoring, this study investigates the diving and surface behavior of franciscana dolphins, providing valuable insights for refining population estimates and advancing conservation strategies. The average surface time was 17 seconds (±15s), and the average dive time was 64 seconds (±26s). The diving time was almost four times longer than the surface time. These findings underscore the importance of ongoing monitoring to support effective management of this vulnerable population.

Objective: To determine the epidemiological profile of patients treated at a philanthropic hospital specialized in Orthopedics and Traumatology, located in a significant urban center, and evaluate the efficacy of initial empirical antibiotic treatment. Methods: Patients diagnosed with hand infections from September 2020 to September 2022 were included, excluding cases related to open fractures or post-surgical infections and those with incomplete medical records. The chi-square test was performed using STATISTICA ® software to correlate various variables. Results: A total of 34 patients participated, including 24 men and 10 women, with an average age of 41.9 years. Most male patients had Diabetes Mellitus, HIV, and drug addiction, and they resided in urban areas. Half of the patients did not report any apparent trauma. The most common infectious agent was Staphylococcus aureus*. Nearly 62% of patients required a change in the initial antibiotic regimen, with Penicillin being the most frequently substituted medication. Beta-lactam antibiotics and Quinolones were the most effective. Conclusion: These results suggest the importance of carefully evaluating the epidemiological profile of patients with acute hand infections and improving initial empirical treatment to ensure appropriate and effective therapy. Level of Evidence IV, Cross-Sectional Observational Study.