Background: The study of the anatomical structure of the ankle joint ligaments is essential for understanding the stability, axis, and movement of the joint, as well as their interrelationship with the function. It also provides fundamental quantitative data for the training and research of physiotherapists, as well as the practice of injury and trauma medicine. Proper diagnosis and treatment of ankle joint injuries, as well as understanding the mechanism of injury, are based on this knowledge. Ankle joint injuries are common, with ligament and tendon injuries accounting for 85% of ankle injuries. In Mongolia, 81.1% of ankle injuries are new, 9.4% are similar to the initial injury, 8.1% are recurrent injuries, and 0.7% have unknown causes. Depending on the mechanism of injury, certain ligaments and connective tissues can be damaged. Ankle ligament injuries are the most common cause of acute ankle pain, and chronic ankle pain is often due to structural changes in the ankle ligaments. Aim: To summarize the research on the normal anatomy of the ankle and subtalar joint, as well as the studies on joint injuries, using the dissection method. Materials and Methods: Literature search was conducted in Thomson Reuters, Pubmed central database, Google Scholar, and Web of Science databases, as well as the statistical data from the Health Development Center and the National Center for Trauma and Orthopedics. Keywords used include: ankle joint, subtalar joint, ankle joint and subtalar joint injuries. A total of 330 publications were identified, and 34 key articles on the normal anatomy of the ankle and subtalar joint, as well as joint injuries, were included in the review. Results: The ankle joint is formed between the distal end of the tibia and the superior articular surface of the talus. It allows plantar flexion and dorsiflexion movements, with a normal range of 30 degrees for plantar flexion and 50 degrees for dorsiflexion. The subtalar joint is formed between the posterior articular surfaces of the talus and calcaneus. It allows inversion and eversion movements, with a normal range of 35 degrees for inversion and 20 degrees for eversion. The ankle ligaments are divided into three groups: lateral, medial, and inferior tibiofibular (syndesmotic) ligaments. The most common cause of ankle joint injuries is excessive inversion of the subtalar joint, leading to injuries to the joint capsule, lateral and medial collateral ligaments, and the syndesmotic ligaments. Excessive plantar flexion and dorsiflexion of the ankle joint can also cause injuries to the posterior talofibular ligament, the osteochondral region of the talar neck, and the anterior-inferior margin of the tibia. Conclusion Comprehensive study of the ankle joint structure provides the basis for explaining the mechanism of injury. Further research in Mongolia is needed, combining dissection and imaging techniques, to develop standardized evaluation protocols that correlate with clinical outcomes.

Introduction : Water is a vital resource for human existence and is essential for daily food processing, preparation, washing, hygiene, and sanitation. Furthermore, providing the population with safe drinking water is one of the pressing problems of the world and some regions.
In recent years, population density and the scale of commercial and industrial activities, as well as clean and dirty water consumption were increased in the capital city. As a result of these, ground and surface water resources are becoming scarce and polluted.
Therefore, assessment of daily drinking and residential water consumption of Ulaanbaatar should be determined to use drinking water properly in daily life and water loss. This study assessed the actual amount of households’ daily water consumption. Goal: The purpose of this study is to determine the daily consumption of drinking water for households in ger areas and apartments in Ulaanbaatar. Materials and Method: This study covers 30 households in ger areas and 15 apartment households, in Ulaanbaatar. Household members performed 6-10 types of measurements every day, within 7 days. As a result of these measurements, actual consumption of water quantity used for drinking and household purposes was calculated. Statistical analysis was done by SPSS Version 21 to calculate the true probability of difference between parameters. Result: 67.9% of the households in the ger areas were 4-5 family members. The average daily household consumption of drinking and domestic water were 68.3 ± 3.57 L (95% 61.3-75.3), the minimum consumption was 12 L, and the maximum was 227 L. Average of the household water consumption water was 97.6-108.9 liters during the weekends, and water consumption was statistically higher than weekdays (p=0.001; p=0.01).
The water consumption of residential households with 3 family members accounted for the majority (30.8%) in this study. The average daily consumption of drinking and domestic water was 297.67±19.7 liters. There was no statistically significant difference (p=0.96) in week. The average daily water consumption including drinking and residential was 270.3-335.97 L.
The total daily drinking and residential water consumption per person was 15.57 L for households in ger areas and 90 L for apartment households. Calculating the daily water consumption of households in ger areas, 60.3% of it is used for laundry, washing dishes, food preparation, washing face and hands, and clothes, 31% for drinking, and 8.7% for outdoor water use. While apartment households, approximately 94.1%, were used for household and 5.9% for drinking purposes. Research ethics approval : This study was discussed at the meeting of the Academic Council of the National Center for Public Health. In addition, this study was carried out according to the methods and methods discussed and approved at the meeting of the Medical Ethics Control Committee of the Ministry of Health (Resolution No. 08). Conclusion The total daily consumption of drinking and residential water per person were 15.57 litres for the households in the ger areas and 90 litres for the apartment households. It implies that it does not exceed the WHO recommendations

BACKGROUND Recent studies show malocclusion rate among Mongolian population is increasing year by year. Malocclusion has a strong relationship with dental caries and its complications. Cephalometric measurement norms are one of the important tools that are used for diagnosis and treatment of malocclusions. Nowadays there are no cephalometric linear measurement norms among Mongolian population according to age and sex. Background of this study was to determine cephalometric linear measurement norms among Mongolian children. METHODS Total 161 children of 6 years old were participated in this study and 79 (36 male and 43 female) children with normal occlusion were selected to determine cephalometric linear measurement norms. Winceph 11.0 program is was used for measurements. RESULTS From all participants’ children with normal occlusion occupied 49% (79 children). Result of measurement results shows no significant statistical differences between males and females. CONCLUSION These cephalometric linear measurements norms will be standard norms for Mongolian children and it is very important tool for orthodontic practice.

BACKGROUND In Mongolia, Gastric cancer is second most common cancer. 904 (603-men, 301- women) new gastric cancer cases reported in 2016 and is about twice as common in men than women. The number of new gastric cancer cases was 29.3 per 100.000 men and women in Mongolia. A greater percentage of total gastric cancer cases were III, IV stage(85.5%). In 2016, The Orkhon province had the highest rate in Mongolia (54.3 cases per 100.000 men and women). In Mongolia and Orkhon province, gastric cancer remains an important public health problem. METHODS A total of 60 gastric cancer cases diagnosed at Medipas Hospital between March 2016 and October 2017 were analyzed retrospectively. RESULTS The average age of all gastric cancer patients was 59.75±9.91 years. The men to women ratio was 1:0.28. The most common location of gastric cancer was upper third(59.7%), followed by middle third (26.9%) and lower third (13.4%) of the stomach. Thepercentage of total gastric cancer cases were advanced gastric cancer (66.7%) than early gastric cancer (31.7%). And One case(1.6%) diagnosed MALT lymphoma. 55% of total gastric cancer cases were treated by Endoscopic submucosal dissection and Gastroectomy surgery. CONCLUSION One reason the overall survival rate is poor in the Mongolia is that most stomach cancers are diagnosed at an advanced rather than an early stage. The stage of the cancer has a major effect on a patient’s prognosis.

Study objective is to determine the mean systolic blood pressure (SBP) and diastolic blood pressure (DPB), prevalence of hypertension (HTN), treatment status, and respective trends in Mongolian population during 2005-2009.Two independent cross-sectional population-based surveys were carried out in 2005 and 2009 to monitor cardiovascular risk factors in men and women aged 15-64 years. The surveys were conducted according to the WHO STEP wise approach.