Volume 11, Issue 1 (1-2023)
Abstract
Aims: Any surgery could be an anxiety-provoking event. A high level of preoperative anxiety may change the result of surgery. This study aimed to determine the effects of training intervention on anxiety in patients undergoing knee replacement.
Materials & Methods: This quasi-experimental study was conducted on 90 patients who were candidates for knee joint replacement surgery in teaching hospitals of Bojnord city in North khorasan Province in 2021. Patients were enrolled in three 90-minute sessions. In the first two sessions, the surgeon informed the patients about the disease, treatment approaches, surgery, and anesthesia, and in the last session, the clinical psychologist instructed them on how to control and deal with anxiety. Anxiety was assessed before, immediately after the intervention, and one day before surgery.
Findings: The mean scores of state anxiety before, immediately after the intervention, and one day before surgery were 44.38±10.76, 41.49±9.41, and 36.19±6.40, respectively. Moreover, the mean scores of trait anxiety before, immediately after the intervention, and one day before surgery were 43.87±10.81, 41.27±8.39, and 38.83±6.56, respectively, which show the effectiveness of the intervention in controlling patients' anxiety (p<0.05).
Conclusion: Informing the patients about their disease and how to deal with it and giving awareness about the effectiveness of the operation by the surgeon and the clinical psychologist is effective in controlling and reducing anxiety.
Moein Taheri , Mohammad Javad Mohammadi ,
Volume 23, Issue 10 (10-2023)
Abstract
In orthopedics, the drilling process is one of the most important steps in the preparation of medical tools and implants. Improving the performance of medical tools and implants is of great importance, because these tools and implants are used in the repair of bone and joint injuries. One of the ways to improve the efficiency of these tools and implants is to use titanium nitride nano coatings on drilling tools. This article is presented with the aim of experimental analysis and optimization of axial force in the orthopedic drilling process using a tool coated with titanium nitride nano coating by physical deposition method. The purpose of this research is to improve the performance and efficiency of this process by optimizing various parameters such as tool rotation speed, cutting depth and titanium nitride coating. For this purpose, experimental tests were conducted using the response surface method. the sensitivity analysis was also performed. The results have shown that the rotational speed, as the most effective parameter, has a lesser effect (45% effect) on the axial force in the case without nanocoating, while it shows a greater effect (73% effect) in the case with nanocoating.
