Surgical technology international
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Total hip arthroplasty is one of the most performed procedures in orthopaedic surgery. Implantation of a prosthesis determines changes in the distribution of loads on the host bone, and this phenomenon, known as stress shielding, is related to the biomechanical characteristics of the implant. Usually stress shielding involves the proximal portion of the femur by reducing the mechanical strength and ability to withstand the transmitted loads. The aim of our study is to demonstrate how the use of a short hip stem reduces the stress shielding phenomenon to the proximal femur. ⋯ We conclude that the amount of periprostetic bone reabsorption around the Metha< stem seems to be strictly related to the surgical technique and the final implant position.
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Anastomotic leaks following colorectal anastomosis has substantial implications including increased morbidity, longer hospitalization, and reduced overall survival. The etiology of leaks includes patient factors, technical factors, and anastomotic perfusion. An intact anastomotic blood supply is especially crucial in the physiology of anastomotic healing. ⋯ Large, multi-center prospective trials, such as the Perfusion Assessment in Laparoscopic Left-Sided/Anterior Resection Study (PILLAR II), demonstrated ease of use with remarkably low anastomotic leak rates after ICG-FA-guided intraoperative revision. Current randomized control trials featuring utilization in ICG-FA in low anterior resection are currently underway and will further clarify the role of ICG-FA in leak identification and prevention. Apart from colorectal surgery, FA has also been successfully employed in other surgical disciplines such as plastic surgery, vascular surgery, foregut surgery, urology, and gynecology.
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Postoperative dislocation occurs in approximately 2% of primary total hip arthroplasties (THAs). Risk factors associated with dislocation include: age of 70 years or older, body mass index (BMI) of 30 kg/m2 or greater, alcohol abuse, and neuro-degenerative diseases such as multiple sclerosis or Parkinson's disease. As a result, dual-mobility articulations, which have been typically used for revision procedures, have become an increasingly popular option for these "at risk" primary THAs. Few studies have assessed their use in this complex patient population. Therefore, the purpose of this study was to assess: 1) survivorship; 2) radiographic outcomes (cup migration, progressive radiolucencies, and changes in component position); 3) Harris Hip Scores; and 4) complications of the dual-mobility articulation in the setting of primary THA for patients at high risk for dislocation. ⋯ At short-term follow-up, dual-mobility articulations in primary THA offer survivorship, outcomes, and complications comparable to conventional THA designs in patients who are at increased risk for postoperative dislocation. Serious complications, such as polyethylene wear and intraprosthetic dislocations, have occasionally been reported with the use of these components. Therefore, future studies should be prospective, multi-center, and have longer-term follow-up to determine the true benefit of modular dual-mobility articulations in patients who are at high risk for dislocation.
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Performance-based feedback is critical to surgical skills acquisition. Barriers of geography and time limit trainees' access to expert mentorship. In this study, we hypothesized that telementoring using an asynchronous, web-based video interface would allow trainees to receive systematic feedback from expert mentors despite these barriers. ⋯ Video-based assessments had a high degree of concordance among expert raters. Asynchronous performance reviews by telementors offer opportunities for longitudinal feedback that overcome geographical, material, and temporal disparities. This platform offers a means of sharing expertise in surgical training, continuing education, credentialing, and global health.