No abstract available.
Anatomy, Regional*

The branches of the axillary nerve and branching pattern of the posterior cord of the brachial plexus are not fully described in the anatomy textbooks. The branching pattern of the axillary nerve is needed to understand various symptoms of quadrilateral space syndrome. We studied on the branching patterns and variation of the axillary nerve and posterior cord of brachial plexus in 127 adult cadaver arms. The axillary, radial and thoracodorsal nerves arising from the posterior cord of the brachial plexus were classified into 4 types according to the position of the thoracodorsal nerve. The most common type (42.5%) was that the three nerves directly arising from the posterior cord. The thoracodorsal nerve branched from the axillary nerve in 27.6%. The posterior branches of the axillary nerve were divided into 6 types by the arising point of the nerve to teres minor muscle. The deltoid branch and lateral superior brachial cutaneous nerve were divided after branching of nerve to teres minor muscle in 50.8%. The lower subscapular nerve was branched from the axillary nerve in 70.9%. We measured the distances from the branching point of the axillary nerve to the inferior border of the subscapularis in the quadriangular space and from the coracoid process to the axillary nerve. The length and motor point of the teres minor muscle were measured. The relationship of the axillary nerve and posterior circumflex humeral artery was observed. The axillary nerve was always medial to the artery and their superoinferior relationship was variable. The clinical significance of the branching pattern of the axillary nerve was discussed.
Adult ; Arm ; Arteries ; Brachial Plexus ; Cadaver ; Humans

The case of 17-year-old boy is presented, in whom back pain progressed to paraplegia. A spinal epidural hematoma was removed at surgery with complete recovery. No traumatic or febrile episode was obtainable. The importance of early diagnosis and early spinal decompression is stressed.
Adolescent ; Back Pain ; Decompression ; Early Diagnosis ; Hematoma, Epidural, Spinal* ; Humans ; Male ; Paraplegia

PURPOSE: To evaluate the usefulness of the Korean Developmental Screening Test (K-DST) for infants and children for developmental delay assessment. METHODS: This study was based on retrospective studies of the results of the K-DST, Preschool Receptive-Expressive Language Scale (PRES), Sequenced Language Scale for Infants (SELSI), Childhood Autism Rating Scale (CARS), Modified Checklist for Autism in Toddlers (M-CHAT), electroencephalography, magnetic resonance imaging, and extensive tests conducted in 209 of 1,403 patients, of whom 758 underwent the K-DST at the Korea University Guro Hospital between January 2015 and December 2016 and 645 were referred from local clinics between January 2015 and June 2016. RESULTS: Based on the K-DST results, the male children significantly more frequently required further or follow-up examination than the female children in most test sections, except for gross motor. The male children had notably lower mean scores than the female children. The PRES/SELSI results showed that when more further or follow-up evaluations were required in the K-DST communication section, significantly more problems in language delay or disorder emerged. When further or follow-up evaluation was required in the cognitive section in the CARS/M-CHAT, the possibility of autism increased significantly. A child tended to score low in the CARS test and show autism when further or follow-up evaluation was recommended in the K-DST. CONCLUSION: This study demonstrated the usefulness of the K-DST as a screening test early in the development of infants and children in Korea. Data of normal control groups should be examined to determine the accuracy of this investigation.
Autistic Disorder ; Checklist ; Child* ; Electroencephalography ; Female ; Follow-Up Studies ; Growth and Development ; Humans ; Infant* ; Korea ; Language Development Disorders ; Magnetic Resonance Imaging ; Male ; Mass Screening* ; Retrospective Studies

The author have presented 58 cases with tumors in spinal canal who were admitted to the department of neurosurgery, Presbyterian Medical Center, Keimyung university school of medicine from March 1975 to September 1979. Of these, 35 cases had spinal metastasis causing cord or cauda equina compression and 23 cause had spinal cord tumors. We attempted to analyse these cases clinically and discussed with the review of the literatures. The results were summarized as follows: In the age distribution, The common incidence of age was between first and second decade in spinal cord tumors and fifth decade in metastatic epiural tumors. The ratio of male to female was about 2:1 in both cases. 2) The most common complaint was weakness of extremities(33 cases:94%) in metastatic epidural tumor and pain in back and extremities(23 cases:10%) in spinal cord tumors. The sphincter disturbance was somewhat more common in metastatic epidural tumors(25 cases:71%) than in spinal cord tumors(11 cases:48%). 3) The duration of symptoms from onset to admission in the patients with metastatic epidural tumors were shorter than in those with spinal cord tumors. The majorities of the duration of symptoms were some monthes in both cases. 4) Motor weakness, reflex change and sensory impairment were the most frequent physical findings. 5) The thoracic region was the most common site of spinal cord tumors and metastatic epidural tumors. 6) Plain spine X-ray was abnormal in 13 cases(56%) of spinal cord tumors, 5 cases(71%) in the metastatic epidural tumors. Twenty three cases in the spinal cord tumors and twenty five cases in the metastatic epidural tumors had done myelography, and it showed intradural convexity in 23 cases(100%) of spinal cord tumors, complete obstruction(serrated or transverse) in 23 cases(91%) of metastatic epidural tumors. 7) The most frequent pathology of spinal cord tumors was schwannoma(16 cases) and the most frequent primary site of metastatic epidural tumors was lung(4 cases). 8) The prognosis was relatively excellent in spinal cord tumors and poor in metastatic epidural tumors in spite of treatment with decompression and radiation therapy.
Age Distribution ; Cauda Equina ; Decompression ; Epidural Neoplasms ; Female ; Humans ; Incidence ; Male ; Myelography ; Neoplasm Metastasis* ; Neurosurgery ; Pathology ; Prognosis ; Protestantism ; Reflex ; Spinal Canal ; Spinal Cord Neoplasms* ; Spinal Cord* ; Spine

The purpose of this study was to investigate variations in the communicating branch between the musculocutaneous and the median nerves and to discuss their clinical significance. Seventy two arms from 36 Korean adults were used. Twenty four cases (33.4%) among 72 arms had communications between the musculocutaneous and the median nerves. In 19.5%, a communicating branch ran from the musculocutaneous to the median nerves and in 4.2% of these a communicating branch formed a loop. A branch running from the median to the musculocutaneous nerves was observed in 6.9%. There were more than two communicating branches between two nerves in 5.6%. The average angle between the musculocutaneous nerve proximal and distal to the coracobrachialis was 159+/-9degrees at adduction of the arm. The musculocutaneous nerve did not pierce the coracobrachialis muscle in 2.8%. One case (1.4%) showed partial fusion of the trunks of the musculocutaneous and median nerves. The musculocutaneous nerve ran next to the median nerve after the coracobrachialis muscle and coursed laterally in 5.6% with or without a communicating branch. In these cases, the angle of the musculocutaneous nerve was more acute. The musculocutaneous nerve entrapment is discussed with this angle.
Adult ; Arm ; Humans ; Median Nerve* ; Musculocutaneous Nerve ; Running

PURPOSE: Febrile seizure (FS) is the most common type of seizure in children between 6 months to 5 years of age. A family history of febrile seizures can increase the risk a child will have a FS. Yet, prevalence of FS regarding external environment has not been clearly proved. This study attempts to determine the association between prevalence of FS and weather. METHODS: This study included medical records from the Korea National Health Insurance Review and Assessment Service. Data were collected from 29,240 children, born after 2004, diagnosed with FS who were admitted to one of the hospitals in Seoul, Korea, between January 2009 and December 2013. During the corresponding time period, data from the Korea Meteorological Administration on daily monitoring of four meteorological factors (sea-level pressure, amount of precipitation, humidity and temperature) were collected. The relationships of FS prevalence and each meteorological factor will be designed using Poisson generalized additive model (GAM). Also, the contributory effect of viral infections on FS prevalence and weather will be discussed. RESULTS: The amount of precipitation was divided into two groups for comparison: one with less than 5 mm and the other with equal to or more than 5 mm. As a result of Poisson GAM, higher prevalence of FS showed a correlation with smaller amount of precipitation. Smoothing function was used to classify the relationships between three variables (sea-level pressure, humidity, and temperature) and prevalence of FS. FS prevalence was correlated with lower sea-level pressure and lower humidity. FS prevalence was high in two temperature ranges (-7 to -1℃ and 18–21℃). CONCLUSION: Low sea-level pressure, small amount of precipitation, and low relative air humidity may increase FS prevalence risk.
Child* ; Fever ; Humans ; Humidity ; Korea ; Medical Records ; Meteorological Concepts ; National Health Programs ; Prevalence* ; Seizures ; Seizures, Febrile* ; Seoul ; Weather*

OBJECTIVE: The objectives of the present study were to investigate the annual detection rate of patients with Moyamoya disease (MMD) and to describe the prevalence and epidemiological features of the Moyamoya patients in Korea. MATERIALS AND METHODS: The authors analyzed the epidemiological data of Korean patients taken from the National Health Insurance Corporation in Korea among Moyamoya patients who were treated from 2004 until 2008. RESULTS: Based on 2004 data, 2,539 MMD patients were treated in Korea and the prevalence rate was 5.2 per 100,000 people. There were 2,987 in 2005, 3,429 in 2006, 4,051 in 2007, and 4,517 cases in 2008, and the prevalence rates per 100.000 people were 6.3, 7.0, 8.6, and 9.1, for those respective years. This represents an annual increase of 15% of new cases during this period. In 2008, 466 people were newly diagnosed with MMD, representing an incidence rate of 1 per 100,000 persons. The gender ratio was 1,547 men (34%) and 2,970 women (66%). Women had a higher incidence rate than men (1.94 times). There were two age peaks: teenagers and those in their forties. CONCLUSION: The present study shows that the number of Moyamoya patients in Korea is increasing. This increase could partly be explained by a recent increase in newly diagnosed cases, suggesting that a more careful consideration of the disease and better diagnostic techniques should be promoted among clinicians.
Adolescent ; Female ; Humans ; Incidence ; Korea ; Male ; Moyamoya Disease ; National Health Programs ; Prevalence

PURPOSE: The purpose of this study is to identify the epidemiologic and clinical characteristics of respiratory adenovirus infections in children, and to investigate the difference in the clinical features between single adenovirus infection and coinfection with adenovirus and other respiratory viruses. METHODS: A retrospective study was performed in 470 children hospitalized with respiratory adenovirus infections in Gwangmyeong Sungae Hospital between January 2013 and December 2013. RESULTS: The mean age of the patients was 46.2 months and the peak incidence was in the 12- to 24-month age group. The mean duration of hospitalization and fever were 4.5+/-1.1 and 4.5+/-9.2 days, respectively. Seasonally it had occurred throughout the year, but showed the highest prevalence in August and high prevalence in July, September, and October. The frequency of viral coinfection with other respiratory viruses was 39.6%. The age was significantly younger in coinfection group than in the single adenovirus infection group (P<0.001). The prevalence rates of bronchiolitis (P<0.001) and pneumonia (P=0.042) were significantly higher in the respiratory syncytial virus coinfection group. The coinfection rate was significantly higher in children aged less than 2 years (P<0.001), and the prevalence rates of bronchiolitis (P<0.001) and pneumonia (P<0.001) were also higher in the group aged less than 2 years than other age groups. CONCLUSION: Adenovirus is an important viral agent in hospitalized children with acute respiratory tract infection. Lower respiratory tract infections, such as bronchiolitis and pneumonia, and coinfection with other respiratory viruses were more frequently occurred in patients under 2 years of age. Further studies are needed to clarify whether coinfection with other respiratory viruses would increase the rate of lower respiratory tract infections in patients with respiratory adenoviral infections.
Adenoviridae Infections* ; Adenoviridae* ; Bronchiolitis ; Child ; Child, Hospitalized ; Coinfection ; Fever ; Hospitalization ; Humans ; Incidence ; Inpatients* ; Pneumonia ; Prevalence ; Respiratory Syncytial Viruses ; Respiratory Tract Infections ; Retrospective Studies ; Seasons

PURPOSE: This study aimed to evaluate the effects of i) the extent of peri-implant bone defects and ii) the application of bone cement on implant stability with respect to the measurement direction. METHODS: In 10 bovine rib bones, 4 implant osteotomies with peri-implant bone defects of various widths were prepared: i) no defect (D0), ii) a 2-mm-wide defect (D2), iii) a 4-mm-wide defect (D4), and iv) a 8-mm-wide defect (D8). The height of all defects was 10 mm. Implant stability quotient (ISQ) values and Periotest values (PTVs) were measured after implant placement and bone cement application. RESULTS: With increasing defect width, decreased ISQs and increased PTVs were observed. Statistically significant differences were found between groups D0 and D8, D0 and D4, and D2 and D8. Prior to bone cement application, inconsistent PTVs were found in group D8 depending on the measurement direction. Bone cement increased the implant stability. CONCLUSION: Peri-implant bone deficits measuring around 50% of the implant surface compromised implant stability. Clinically, PTVs should be cautiously interpreted in implants with large peri-implant defects due to inconsistent recordings with respect to the measurement direction.
Alveolar Bone Loss ; Bone Transplantation ; Dental Implants ; In Vitro Techniques ; Models, Anatomic ; Osteotomy ; Ribs