1.An Exploration into Life, Body, Materials, Culture of Mediaeval East Asia: Focusing on Emergency Medicine Recipes in Local Medicinals of Koryŏ Dynasty
Kiebok YI ; Sanghyun KIM ; Chaekun OH ; Jongwook JEON ; Dongwon SHIN
Korean Journal of Medical History 2019;28(1):1-42
The Emergency Medicine Recipes in Local Medicinals (鄕藥救急方, Hyang'yak Kugŭpbang) (c. 14th century) is known to be one of the oldest Korean medical textbooks that exists in its entirety. This study challenges conventional perceptions that have interpreted this text by using modern concepts, and it seeks to position the medical activities of the late Koryŏ Dynasty 高麗 (918–1392) to the early Chosŏn Dynasty 朝鮮 (1392–1910) in medical history with a focus on this text. According to existing studies, Emergency Medicine Recipes in Local Medicinals is a strategic compromise of the Korean elite in response to the influx of Chinese medical texts and thus a medical text from a “periphery” of the Sinitic world. Other studies have evaluated this text as a medieval publication demonstrating stages of transition to systematic and rational medicine and, as such, a formulary book 方書 that includes primitive elements. By examining past medicine practices through “modern” concepts based on a dichotomous framework of analysis — i.e., modernity vs. tradition, center vs. periphery, science vs. culture — such conventional perceptions have relegated Emergency Medicine Recipes in Local Medicinals to the position of a transitional medieval publication meaningful only for research on hyangchal 鄕札 (Chinese character-based writing system used to record Korean during the Silla Dynasty 新羅 [57 BC–935 AD] to the Koryŏ Dynasty). It is necessary to overcome this dichotomous framework in order to understand the characteristics of East Asian medicine. As such, this study first defines “medicine 醫”, an object of research on medical history, as a “special form of problem-solving activities” and seeks to highlight the problematics and independent medical activities of the relevant actors. Through this strategy (i.e., texts as solutions to problems), this study analyzes Emergency Medicine Recipes in Local Medicinals to determine its characteristics and significance. Ultimately, this study argues that Emergency Medicine Recipes in Local Medicinals was a problem-solving method for the scholar-gentry 士人層 from the late Koryŏ Dynasty to the early Chosŏn Dynasty, who had adopted a new cultural identity, to perform certain roles on the level of medical governance and constitute medical praxis that reflected views of both the body and materials and an orientation distinguished from those of the so-called medicine of Confucian physicians 儒醫, which was the mainstream medicine of the center. Intertwined at the cultural basis of the treatments and medical recipes included in Emergency Medicine Recipes in Local Medicinals were aspects such as correlative thinking, ecological circulation of life force, transformation of materiality through contact, appropriation of analogies, and reasoning of sympathy. Because “local medicinals 鄕藥” is understood in Emergency Medicine Recipes in Local Medicinals as referring to objects easily available from one's surroundings, it signifies locality referring to the ease of acquisition in local areas rather than to the identity of the state of Koryŏ or Chosŏn. As for characteristics revealed by this text's methods of implementing medicine, Korean medicine in terms of this text consisted largely of single-ingredient formulas using diverse medicinal ingredients easily obtainable from one's surroundings rather than making use of general drugs as represented by materia medica 本草 or of multiple-ingredient formulas. In addition, accessible tools, full awareness of the procedures and processes of the guidelines, procedural rituals, and acts of emergency treatment (first aid) were more important than the study of the medical classics, moral cultivation, and coherent explanations emphasized in categorical medical texts. Though Emergency Medicine Recipes in Local Medicinals can be seen as an origin of the tradition of emergency medicine in Korea, it differs from medical texts that followed which specializing in emergency medicine to the extent that it places toxicosis 中毒 before the six climatic factors 六氣 in its classification of diseases.
Asian Continental Ancestry Group
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Ceremonial Behavior
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Classification
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Emergencies
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Emergency Medicine
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Emergency Treatment
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Far East
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Humans
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Korea
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Materia Medica
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Medicine, East Asian Traditional
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Methods
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Publications
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Thinking
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Writing
2.Satisfaction, and Factors Influencing Satisfaction, with Internal Environment and Safety of Emergency Medical Service Ambulances in Korea: Pilot Study of Patients and Guardians.
Jinwoo JEON ; Tae Ho LIM ; Sanghyun LEE ; Jaehoon OH ; Hyunggoo KANG ; Chiwon AHN ; Juncheol LEE
Journal of the Korean Society of Emergency Medicine 2015;26(6):598-604
PURPOSE: This study was conducted to assess the satisfaction, and factors influencing the satisfaction, of patients and guardians with the internal environment and safety of ambulances in Korea. METHODS: Participants were patients and guardians who were transported by public emergency medical service ambulance to an emergency medical center in June 2015. Data were collected using self-administered questionnaires. The degree of satisfaction with the ambulance was categorized as satisfaction (Likert scale 4 or 5) or dissatisfaction (Likert scale 1 or 2). The questionnaires comprised 3 categories: 1) demographics, 2) internal environment (space, light, temperature, humidity, soundproof, and odor), and 3) safety (vibration, leaning of body, and falling objects). RESULTS: Among 84 cases, 80.5% of patients and 83.7% of guardians gave positive responses regarding general satisfaction with the internal environment of the ambulance, but these percentages were lower regarding adequacy of space and light. Four factors had a statistically significantly influence on the degree of satisfaction: 1) sex of guardian regarding adequacy of space, 2) number of guardians regarding general satisfaction, 3) severity of patient regarding guardian's satisfaction with space, 4) diagnosis of patient (trauma vs non-trauma) regarding vibration during transport (all p<0.05). CONCLUSION: Overall, patients and guardians were satisfied with the internal environment and safety of ambulances except for adequacy of space and light.
Ambulances*
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Demography
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Diagnosis
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Emergencies*
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Emergency Medical Services*
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Humans
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Humidity
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Korea*
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Patient Satisfaction
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Pilot Projects*
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Vibration
3.Proximal Femur Salvage in Revision Knee Arthroplasty Due to Oncologic Indications:Long-term Results of Onlay and Overlapping Allograft in Revision Surgeries
Sanghyun CHO ; Dae-Geun JEON ; Wan Hyeong CHO ; Won Seok SONG ; Yongsung KIM
Clinics in Orthopedic Surgery 2023;15(5):853-863
Background:
Mechanical failures of tumor endoprosthesis in the distal femur usually require revision surgery. We investigated if the proximal femur host bone can be salvaged by onlay and overlapping allograft in revision surgeries due to aseptic loosening and stem fractures.
Methods:
We retrospectively reviewed 18 patients (7 men and 11 women) with osteosarcoma around the knee. The entire cohort was classified into three subgroups (no bone graft: 6, onlay allograft: 7, and overlapping allograft: 5) according to our treatment strategy.
Results:
The median interval from the initial surgery to the revision was 94.5 months (range, 21–219 months), and the median follow-up period from the revision surgery was 88.0 months (range, 24–179 months). At the last follow-up, 9 of the 18 patients maintained their endoprostheses, and the 5-year prosthesis survival rate was 57.9%. Limb survival was 100%. Five-year prosthesis survival rate was 66.7% in the no bone graft group, 85.7% in the onlay allograft group while 30.0% in the overlapping allograft group. In the no bone graft group and onlay allograft group, 66.7% (4/6) and 57.1% (4/7) maintained their revision prostheses while no prostheses survived in the overlapping allograft group. Recurrent stem loosening was observed in 14.2% (1/7) and 60.0% (3/5) of the onlay allograft and overlapping allograft groups, respectively, despite allograft bone union. The complication rate was 66.7% (12/18) in the entire cohort. The most common type of complication was infection (n = 6), followed by aseptic loosening (n = 4) and mechanical failure (n = 2).
Conclusions
This study indicates that onlay allograft can be used as a supportive method in revising failed endoprosthesis if the extent of host bone destruction is extensive. However, applying overlapping allograft to secure bone stock showed a high rate of mechanical failures and infection in the long term. Future studies with a larger cohort are necessary to assess the prognostic factors for the higher complication rate in overlapping allograft and the need for overlapping allograft. Surveillance with consideration of the risk of anteromedial osteolysis in allograft and efforts for prevention of periprosthetic infection are essential.
4.Operative Treatment of Pediatric Distal Forearm Bothbone Fracture.
Sang Uk LEE ; Changhoon JEONG ; Il Jung PARK ; Jaeyoung LEE ; Seman OH ; Kyung Hoon LEE ; Sanghyun JEON
Journal of the Korean Fracture Society 2015;28(4):237-244
PURPOSE: Pediatric patients with distal forearm bothbone fractures of surgical indication were treated with the Kapandji reduction technique for radius and flexible intramedullary nail for ulna at our institution. The purpose of this study is to evaluate clinical and radiological results. MATERIALS AND METHODS: From February 2012 to June 2014, we retrospectively evaluated 16 out of 18 cases with distal forearm bothbone fractures treated with the Kapandji reduction technique for radius and flexible intramedullary nail for ulna with at least 1-year follow-up. The average age at operation was 9.1 years (7-13 years). RESULTS: Adequate reduction for both radius and ulna was achieved for all cases, and none of the cases showed re-displacement until the last follow-up. Mean 6.6 weeks lapsed until bony union was observed for the radius. For the ulna, the mean was 6.5 weeks. All patients gained full wrist range of motion at the last visit. CONCLUSION: For pediatric distal forearm bothbone fractures, intrafocal Kapandji reduction and internal fixation with Kirschner wire for radius and reduction and internal fixation with a flexible intramedullary nail for ulna is the technique for handy reduction. Use of this technique can prevent re-displacement during the union process and achieve excellent clinical and radiologic results.
Follow-Up Studies
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Forearm*
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Humans
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Radius
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Range of Motion, Articular
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Retrospective Studies
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Ulna
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Wrist
5.Total Deformity Angular Ratio as a Risk Factor for Complications after Posterior Vertebral Column Resection Surgery
Byoung Hun LEE ; Seung Jae HYUN ; Sanghyun HAN ; Se Il JEON ; Ki Jeong KIM ; Tae Ahn JAHNG ; Hyun Jib KIM
Journal of Korean Neurosurgical Society 2018;61(6):723-730
OBJECTIVE: The aim of the present study was to identify whether the deformity angular ratio (DAR) influences the occurrence of complications after posterior vertebral column resection (PVCR) and to establish the DAR cut-off value.METHODS: Thirty-six consecutive patients undergoing PVCR from December 2010 to October 2016 were reviewed. The relationships between the total, sagittal, and coronal DAR and complications were assessed using receiver operator characteristics curves. The patients were divided into two groups according to a reference value based on the cut-off value of DAR. Demographic, surgical, radiological, and clinical outcomes were compared between the groups.RESULTS: There were no significant differences in the patient demographic and surgical data between the groups. The cut-off values for the total DAR (T-DAR) and the sagittal DAR (S-DAR) were 20.2 and 16.4, respectively (p=0.018 and 0.010). Both values were significantly associated with complications (p=0.016 and 0.005). In the higher T-DAR group, total complications (12 vs. 21, p=0.042) and late-onset complications (3 vs. 9, p=0.036) were significantly correlated with the T-DAR. The number of patients experiencing complications (9 vs. 11, p=0.029) and the total number of complications (13 vs. 20, p=0.015) were significantly correlated with the S-DAR. Worsening intraoperative neurophysiologic monitoring was more frequent in the higher T-DAR group (2 vs. 4) than in the higher S-DAR group (3 vs. 3). There was no difference in neurological deterioration between the groups after surgery.CONCLUSION: Both the T-DAR and the S-DAR are risk factors for complications after PVCR. Those who had a T-DAR >20.2 or S-DAR >16.4 experienced a higher rate of complications after PVCR.
Congenital Abnormalities
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Humans
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Intraoperative Neurophysiological Monitoring
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Reference Values
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Risk Factors
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Spine
6.The use of the bicipital groove as an intraoperative landmark for proximal humeral rotation during fracture fixation
Hyun-Joo LEE ; Sanghyun JOUNG ; Erica KHOLINNE ; Suk-Joong LEE ; Jong Pil YOON ; Jun TAN ; In-Ho JEON
The Ewha Medical Journal 2024;47(2):e25-
Objectives:
This study aimed to quantify the relationship between proximal humeral rotation and the lateral border of the bicipital groove on fluoroscopic imaging.
Methods:
A composite normal humerus with a marker placed on the lateral border of the bicipital groove was affixed to a custom rotation device at the proximal cut segment. Consecutive fluoroscopic images were captured from −60° to 60° in 5° increments and from −15° to 15° in 1° increments. The index value was calculated by taking the ratio of the distance from the medial boundary of the proximal humerus to the lateral border of the bicipital groove to the distance between the medial and lateral boundaries of the proximal humerus. The correlation between the humeral rotation and the index value was determined.
Results:
The index value showed a strong positive linear correlation position during internal rotation of the humerus across the entire range (r=0.998, P<0.001), as well as when the humerus was externally rotated, ranging from 15° of internal rotation to 15° of external rotation (r=0.991, P<0.001).
Conclusion
The lateral border of the bicipital groove may serve as a useful intraoperative landmark for assessing proximal humeral rotation. This could potentially enhance the outcomes of humeral fracture repair and upper arm arthroplasty.