جستجوی مقالات مرتبط با کلیدواژه « دست » در نشریات گروه « پزشکی »

Microbial contamination of bread can endanger the health of consumers. The aim of this study was to determine the microbial contamination of bread and hands of workers directly supplying bread in selected bakeries in Bandar Abbas.

In this descriptive-analytical study conducted in 2020, 76 bakeries were randomly selected and bread samples were taken using relative stratified sampling method, based on the baking type, and transferred to the food laboratory to measure the microbial load. Also, from each bakery, a bread distributor was selected to investigate the hand microbial contamination. The microbial load of bread samples was measured in a food lLaboratory and the microbial load of workers' hands was measured using an SSP device. Statistical analysis was performed using SPSS software. Mean and standard deviation parameters were used to describe the data and Chi-square test was used to examine the relationship between variables at a significance level of 0.05.

Based on the results, out of a total of 76 samples taken from the workers, 51 samples (80%) were found to be infected with microorganisms. Having a health card, using face masks, and respecting personal hygiene, social distancing, and disinfection protocols had a significant relationship with workers' hand contamination (P-Value<0.05). The results of measuring the microbial load of bread samples showed that all samples were free of microbial contamination.

Despite no microbial contamination in the bread samples, contamination of workers' hands can be a source of microbial contamination for bread. Therefore, it is recommended that health officials consider strict controls over personal hygiene and the health of bakeries.

Estimating limb length based on the remaining parts of each limb is one of the most important challenges among anatomists and forensic specialists. The aim of this study was to evaluate the relationship between upper limb length and length of upper limb segments to derive a regression formula for estimating upper limb length.

Four parameter of upper limb length, arm length, forearm length and arm length were taken from 199 students of Tehran University of Medical Sciences (18-25 years old) and then statistically analyzed using SPSS 16 software. And linear regression model was used to estimate the length of the upper limb.

By examining the Pearson correlation in the whole statistical population, a direct relationship was found between the total length of the upper limb and arm length, forearm length and arm length (p = 0.0001, 0.803, 0.824, 0.836, respectively).

We found a strong correlation between upper limb length and arm length, forearm length and length. Regression analysis also showed that arm and forearm length were more valuable than forearm length for estimating upper limb length.

Understanding hand structures is necessary to diagnose its diseases and injuries. Several methods have been used to teach the anatomy of this body part. In this article, we introduce a new educational tool and examine the impact of its use in learning anatomy.

Color images of different layers of hand structures were connected with a spring. On each page, the desired structure was cut and that part could be turned from another direction so that the tool was beyond a booklet and could create a three-dimensional image of the region. In this way, a multi-layered structure was made that looking at each part of it and going to the next part was equivalent to removing a layer from the palm of the hand and observing the layer beneath. After making the educational tool, 280 students who participated in the study were divided into two groups: control (A) and experimental (B). Both groups participated in a pre-test. After teaching the theory of hand anatomy for both groups, the control group received practical training using the traditional method and the experimental group using the proposed educational tool, and both groups participated in a post-test and the scores of the pre and post-test groups were compared. Data were analyzed using SPSS 24 statistical software using Mann-Whitney and Wilcoxon tests.

The pre-test scores of groups A and B were 3.48±1.197 and 3.49±1.481, respectively. The post-test scores of groups A and B were 6.97±1.504 and 10.54±1.303, respectively. Therefore, although the pre-test scores of groups A and B were not much different (P>0.05), the post-test scores of the two groups showed a significant difference (P<0.001). Students also expressed that using this educational tool has made learning hand anatomy more interesting for them.

The results of this study showed that the proposed educational tool is effective in the field of hand anatomy education.

Notice to importance of traumatic triangular fibrocartilage complex (TFCC), this study aimed to compare the effect of open surgery and supportive medical treatment on the improvement of trauma and quality of life in patients with TFCC.

In a clinical trial study, 32 patients with triangular fibrocartilage trauma were selected and randomly divided into two groups of intervention and control. The intervention group underwent open surgery and the control group were receiving supportive treatments as non-steroidal anti-inflammatory drugs (NSAIDS), physiotherapy, and corrective action. All patients were followed for 3 months after intervention, and quality of life and improvement was evaluated using Mayo score, and compared between the two groups.

The mean Mayo score before intervention was 30.0 ± 7.8 and 29.4 ± 10.7 in open surgery and supportive treatment groups, respectively, and no statistically difference was seen between the two groups (P = 0.560). The mean Mayo score after intervention was 68.2 ± 6.4 and 42.2±10.3 in surgery and supportive treatment groups, respectively, and the difference between groups was statistically significant (P < 0.001).

Our study showed that open surgery in patients with TFCC is better than the conservative treatment

Aging in the modern society is conjoined with different diseases such as osteoarthritis (OA) which causes reduced occupational abilities for people and burden of financial and societal problems on society. Occupational risk factors are among the main risk factors for hand OA. Despite their major effects on daily living of elders, there are different results in the literature considering the occupational risk factors.

Aim of the present study was to review the present evidence on occupational risk factors effective on hand OA.

In this systematic review article, articles related to occupational risk factors in hand OA and their effects on functional capacity and occupational abilities of elders since 1980 till present were investigated in data bases including PubMed, Cochrane, Web of Science, Science Direct, Scopus, Iran Doc, and SID.

In reviewing the literature, two different but interrelated themes were explored relating to the occupational risk factors in hand OA including occupations related to the hand OA and biomechanical factors inside those occupations. People with manual occupations which needed manipulating heavy, large, and vibratory tools such as miners and farmers were at risk of OA in bigger joints of hand such as metacarpophalangeal and wrist; while people with occupations requiring precision and repetitive griping such as dentists and housewives were at risk of OA in smaller joints in the hand such as fingers’ distal interphalangeal and thumb’ carpometacarpal. Biomechanical factors inside those occupations related to the hand OA were a combination of work with heavy tools, excessive repetition, static contractions for a long period, precision grip, power grasp, low variety in tasks, vibration, high level of muscle activity, excessive use of joints, and lack of enough resting time.

A special task or occupation cannot trigger hand OA while it is the biomechanical factors inside occupations which makes a hand at risk of OA in long periods. Knowing occupational risk factors for hand OA may help and persuade health team, employers, employees, and workers in preventive screenings and better designing of work and living environments according to the ergonomic principles.

Enchondroma is the most common benign bone tumor in hand، which can be seen in various manifestations such as swelling، pain، deformity and pathologic fracture. Different surgical treatments were reported for enchondroma to prevent the progressive deformity and pathological fractures. The purpose of this study was to investigate the result of treatment of enchondroma of hand with curettage alone.

In a cross sectional study، 17 patients with average age of 32 years with enchondroma of hand who were operated in a 6-year period in a training hospital in Tehran-Iran were evaluated. The patients received the treatment of tumor removal without filling the resultant defect. The cases were evaluated for range of motion، grip power and radiographic Tordai classification.

In a 15. 2 month (12-88 months) follow-up no recurrence was observed and all of the patients re-gained their previous finger range of motion.

Treatment of enchondroma of hand with curettage alone، without filling the defect would result in satisfactory outcome with low recurrence rate and good restoration of power and function.