1.Effects of quadriceps angle on patellofemoral contact pressure
Yoon-Hyeong YOO ; Sung-Jun LEE ; Soon-wuk JEONG
Journal of Veterinary Science 2020;21(5):e69-
Background:
An inappropriate Q angle may affect the biomechanics of the canine patellofemoral joint.
Objectives:
The purpose of this study was to evaluate the effects of changes in quadriceps angle (Q angle) on patellofemoral joint pressure distribution in dogs.
Methods:
Eight stifles were positioned at 45, 60, 75, 90, 105, and 120° of flexion in vitro, and 30% body weight was applied through the quadriceps. Patellofemoral contact pressure distribution was mapped and quantified using pressure-sensitive film. For the pressure area, mean pressure, peak pressure, medial peak pressure, and lateral peak pressure, differences between groups according to conditions for changing the Q angle were statistically compared.
Results:
Increases of 10° of the Q angle result in increases in the pressure area (P = 0.04), mean pressure (P = 0.003), peak pressure, and medial peak pressure (P ≤ 0.01). Increasing the Q angle by 20° increases the pressure area (P = 0.021), mean pressure (P≤ 0.001), peak pressure (P ≤ 0.01), and medial peak pressure (P ≤ 0.01) significantly, and shows higher mean (P ≤ 0.001) and peak pressures than increasing by 10°. Decreasing the Q angle increases the mean pressure (P = 0.013), peak pressure, and lateral peak pressure (P ≤ 0.001).
Conclusions
Both increases and decreases in the Q angle were associated with increased peak patellofemoral pressure, which could contribute to the overloading of the cartilage.Therefore, the abnormal Q angle should be corrected to the physiologically normal value during patellar luxation repair and overcorrection should be avoided
2.The Effect of Short Term Dutasteride Therapy on Microvessel Density in Benign Prostatic Hyperplasia.
Je Hyeong WOO ; Jeong Yoon KANG ; Eun Kyung KIM ; Tag Keun YOO
Korean Journal of Urology 2008;49(6):515-519
PURPOSE: Several studies have shown that finasteride limits hematuria in patients with benign prostatic hyperplasia(BPH). However, there are few reports addressing dutasteride therapy. We evaluated the effect of dutasteride on intraoperative blood loss and on microvessel density(MVD) in patients with BPH. MATERIALS AND METHODS: We studied 39 patients with BPH who underwent transurethral resection of the prostate(TURP). Group I included 22 patients who received dutasteride 0.5mg daily for 2 weeks preoperatively, and group II included 17 patients who did not. Blood loss was evaluated by comparing preoperative and postoperative hemoglobin. Sections from the prostatic suburothelium and hyperplastic prostate were individually stained for CD 34. MVD was calculated by counting the number of positively stained blood vessels in 5 random high power fields. There were no significant differences between the groups in terms of age, total prostatic volume, resected prostatic weight, or prostate-specific antigen (PSA). RESULTS: The mean MVD in the suburethral portion in dutasteride-treated patients was significantly lower than that seen in untreated patients(14.47 versus 22.19 vessels per high power field, p=0.026). In nodular hyperplasia, there was no significant difference in MVD between the two group(14.72 versus 15.24 vessels per high power field, p=0.801). CONCLUSIONS: Short term pretreatment with dutasteride decreases suburethral prostatic MVD in patients with BPH and may help reduce blood loss during TURP, particularly in huge BPH, which sometimes bleeds excessively during operation.
Azasteroids
;
Blood Vessels
;
Finasteride
;
Hematuria
;
Hemoglobins
;
Humans
;
Hyperplasia
;
Microvessels
;
Prostate
;
Prostate-Specific Antigen
;
Prostatic Hyperplasia
;
Transurethral Resection of Prostate
;
Dutasteride
3.Primary Bladder Signet Ring Cell Carcinoma Extended to Prostate.
Je Hyeong WOO ; Hyun Jung PARK ; Eun Kyung KIM ; Jeong Yoon KANG ; Jeong Yun JEONG ; Tag Keun YOO
Korean Journal of Urology 2007;48(3):356-358
A primary signet ring cell carcinoma (PSRCC) of the urinary bladder is a rare variant of a mucin-producing adenocarcinoma. The prognosis of a PSRCC is poor, as silent progression in a linitis platica fashion leads to delayed diagnosis. Herein, the case of a PSRCC of the bladder, which extended to the prostate, which was treated with a cystoprostatectomy, is reported.
Adenocarcinoma
;
Carcinoma, Signet Ring Cell*
;
Delayed Diagnosis
;
Prognosis
;
Prostate*
;
Urinary Bladder*
4.Gait Analysis in Cervical Spondylotic Myelopathy at Pre- and Post-Surgery.
Woo Hyun SONG ; Hyeong Joon KIM ; Jong Yoon YOO ; In Young SUNG ; Seung Chul RHIM ; Se Jin YOON
Journal of the Korean Academy of Rehabilitation Medicine 2003;27(1):58-62
OBJECTIVE: To investigate objectively the postoperative change of the gait pattern in patients with cervical myelopathy through gait analysis. METHODS: Thirty nine patients who underwent cervical decompression and fusion for cervical myelopathy were studied. Preoperatively, gait disturbance was present in all patients. The patients were evaluated with Nurick classification, Functional Independence measure (FIM) score and gait analysis using three dimensional motion analyzer before surgery, 1 week and 3 months after surgery. RESULTS: In the Nurick classification there was statistically significant change but no significant change in FIM score after surgery. In the gait analysis there were statistically significant improvements in all the linear parameters, kinetic (ankle plantarflexion moment) and kinematic (knee range of motion in swing phase) parameters (p<0.05). CONCLUSION: This study suggests that gait analysis can be used as a quantitative tools of postoperative gait improvement in patient with cervical myelopathy.
Classification
;
Decompression
;
Gait*
;
Humans
;
Range of Motion, Articular
;
Spinal Cord Diseases*
5.Peritonitis due to spontaneous rupture of the urinary bladder in an end stage renal disease patient with anuria.
Won Kyu LEE ; Young Sam KIM ; Bong Hwan KIM ; Yoon Hyeong KIM ; Yoo Soon KO ; Hyung Ki KIM ; Byeong Kwon LEE
Korean Journal of Medicine 2007;72(6):679-683
Patients with nonfunctioning bladders, such as found in anuric renal failure, are prone to a severe form of urinary tract infection called pyocystis. Pyocystis is the accumulation of pus in the bladder. Anuric patients are often believed to be incapable of acquiring a urinary pathogen; thus, the urinary tract may be mistakenly discounted as a possible source of sepsis and bladder rupture. Although bladder rupture is normally associated with trauma, spontaneous bladder rupture may occur, especially in patients with mental disabilities, alcohol abuse and urinary tract infection. We report a rare case of a spontaneous intraperitoneal bladder rupture, probably precipitated by pyocystis. Symptoms and signs were atypical and included pain and vomiting with fever, abdominal distension and ascites. An abdominal CT and retrograde cystography showed a large quantity of intraperitoneal fluid and tearing in the dome of the bladder. Repair of the rupture site of the bladder after laparotomy was performed. However,, the patient expired due to peritonitis and pulmonary infection.
Alcoholism
;
Anuria*
;
Ascites
;
Fever
;
Humans
;
Kidney Failure, Chronic*
;
Laparotomy
;
Peritonitis*
;
Renal Insufficiency
;
Rupture
;
Rupture, Spontaneous*
;
Sepsis
;
Suppuration
;
Tomography, X-Ray Computed
;
Urinary Bladder*
;
Urinary Tract
;
Urinary Tract Infections
;
Vomiting
6.Incidence estimation of thyroid cancer among Koreans.
Yoon Ok AHN ; Byung Joo PARK ; Keun Young YOO ; Hyeong Sik AHN ; Dae Hee KANG ; Moo Song LEE ; Hong Hoe KOO ; Bo Youn CHO ; Seung Keun OH ; Jung Kwon LEE
Journal of Korean Medical Science 1991;6(1):37-44
The medical records of inpatients with diagnoses of either ICD-9 193(malignant neoplasm of the thyroid gland) or 226(benign neoplasm of the thyroid gland) in the claims sent in by medical care institutions throughout the country, to the Korea Medical Insurance Corporation (KMIC) during the period from January 1, 1986 to December 31, 1987 were abstracted. These records were abstracted in order to identify and confirm new cases of thyroid cancer among the beneficiaries of the KMIC. Using these data, the incidence rate of thyroid cancer among Koreans was estimated as of July 1, 1986 through June 30, 1987. The crude rates were estimated to be 0.76(95% Cl: 0.63-0.87) and 3.87(95% Cl: 3.60-4.14) per 100,000 in males and females, respectively, and the cumulative rates for the age spans 0-64 and 0-74 in males were 0.06% and 1.10%, respectively. In females, those were equally 0.35%. The age-adjusted rate for the world population was 0.93 per 100,000 in males, which is one of the lowest levels in the world. However, the adjusted rate in females was 3.96 per 100,000, which is an average level and very similar to that of the Chinese in Singapore and Shanghai. A similar tendency was shown in the case of the truncated rates for the age group of 35-64, which was 1.91 per 100,000 in males and 8.82 per 100,000 in females.
Adolescent
;
Adult
;
Age Factors
;
Aged
;
Epidemiologic Factors
;
Female
;
Humans
;
Korea/epidemiology
;
Male
;
Middle Aged
;
Sex Factors
;
Thyroid Neoplasms/*epidemiology/pathology
7.Association between Sarcopenia, Sarcopenic Obesity, and Chronic Disease in Korean Elderly.
Hee Sook LIM ; Yoon Hyung PARK ; Kyoil SUH ; Myung Hi YOO ; Hyeong Kyu PARK ; Hye Jeong KIM ; Jae Hyuk LEE ; Dong Won BYUN
Journal of Bone Metabolism 2018;25(3):187-193
BACKGROUND: It is a very important social issue for Korea to have a healthy old age as an aged society. Aging causes a lot of physical changes, especially sarcopenia. Sarcopenia is defined as a persistent decrease in skeletal muscle and muscle strength. Sarcopenic obesity is a phenomenon in which fat is replaced instead of muscle. The purpose of this study was to examine the prevalence of sarcopenia and sarcopenic obesity in Korean elderly and to analyze the relationship with chronic disease. METHODS: Data from the 2008 to 2011 the Korea National Health and Nutrition Survey were used. A total of 3,492 patients were classified into 3 groups (non-sarcopenia, sarcopenia, sarcopenic obesity), and general, anthropometry, health behavior, nutrient intake and chronic disease status were compared by the statistical analysis. RESULTS: The rate of moderate exercise was significantly lower in the sarcopenia and sarcopenic-obesity group than in the non-sarcopenia group (P=0.007). The sarcopenic obesity group had significantly higher energy (P=0.005), protein (P=0.046) and fat (P=0.001) intake than the sarcopenic group. The sarcopenic-obesity group had the highest ratio of diabetes (P=0.023) and dyslipidemia (P=0.004) in the 3 groups. Compared with the non-sarcopenia group, in the sarcopenia and sarcopenic obesity groups, the odds ratios (ORs) of diabetes was increased by 1.24 and 2.16 while the ORs of dyslipidemia was increased by 1.12 and 1.50, respectively. CONCLUSIONS: Regular exercise and adequate nutrient intake (energy, protein and fat) are essential for the prevention of sarcopenia in Korean elderly, and management of chronic disease in sarcopenic obesity elderly is important.
Aged*
;
Aging
;
Anthropometry
;
Chronic Disease*
;
Dyslipidemias
;
Health Behavior
;
Humans
;
Korea
;
Muscle Strength
;
Muscle, Skeletal
;
Nutrition Surveys
;
Obesity*
;
Odds Ratio
;
Prevalence
;
Sarcopenia*
8.IDH1/2 mutations in acute myeloid leukemia
Ja Min BYUN ; Seung-Joo YOO ; Hyeong-Joon KIM ; Jae-Sook AHN ; Youngil KOH ; Jun Ho JANG ; Sung-Soo YOON
Blood Research 2022;57(1):13-19
The mutational and epigenetic landscape of acute myeloid leukemia (AML) has become increasingly well understood in recent years, informing on biological targets for precision medicine. Among the most notable findings was the recognition of mutational hot-spots in the isocitrate dehydrogenase (IDH) genes. In this review, we provide an overview on the IDH1/2 mutation landscape in Korean AML patients, and compare it with available public data. We also discuss the role of IDH1/2 mutations as biomarkers and drug targets.Taken together, occurrence of IDH1/2 mutations is becoming increasingly important in AML treatment, thus requiring thorough examination and follow-up throughout the clinical course of the disease.
9.A Case of Kallmann's Syndrome with Unilateral Renal Aplasia and Diabetes Mellitus.
En Jung LEE ; Sung Wook HONG ; Yun Ki HONG ; Ji Sung YOON ; Ji O MOK ; Yeo Joo KIM ; Hyeong Kyu PARK ; Chul Hee KIM ; Sang Jin KIM ; Dong Won BYUN ; Won Kyung BAE ; Kyo Il SUH ; Myung Hi YOO
Journal of Korean Society of Endocrinology 2005;20(1):96-102
Kallmann's syndrome is defined as the combination of hypogonadotropic hypogonadism and anosmia/hyposmia. The syndrome is a result of defect in the embryonic migratory pathway of gonadotropin-releasing hormone, which synthesizes neurons and olfactory axons. The hypogonadotropic hypogonadism results due to absence of or incomplete pubertal development and may be associated with anosmia, hyposmia, midline defect(color blindness, cleft-lip, cleft-palate, unilateral renal agenesis, sensorineural deafness), cryptorchidism and skeletal anomaly. Till date in Korea, few cases of Kallmann's syndrome have been reported but there are no available reports on cases of Kallmann's syndrome with unilateral renal aplasia and diabetes mellitus. We handled a case of Kallmann's syndrome associated with unilateral renal agenesis and diabetes mellitus. In the current work, we present a peculiar case as afore mentioned with the review of related literature.
Axons
;
Blindness
;
Cryptorchidism
;
Diabetes Mellitus*
;
Gonadotropin-Releasing Hormone
;
Hypogonadism
;
Kallmann Syndrome*
;
Korea
;
Male
;
Neurons
;
Olfaction Disorders
10.The Effects of Ethyl Pyruvate on Lipopolysaccharide-induced Acute Lung Injury.
Seung Hyeun LEE ; Dae Wui YOON ; Jin Yong JUNG ; Kyung Joo LEE ; Se Joong KIM ; Eun Joo LEE ; Eun Hae KANG ; Ki Hwan JUNG ; Sung Yong LEE ; Sang Yeub LEE ; Je Hyeong KIM ; Chol SHIN ; Jae Jeong SHIM ; Kwang Ho IN ; Se Hwa YOO ; Kyung Ho KANG
Tuberculosis and Respiratory Diseases 2006;61(4):374-383
BACKGROUND: Ethyl pyruvate (EP) is a derivative of pyruvate that has recently been identified by both various in vitro and in vivo studies to have antioxidant and anti-inflammatory effects. The aim of this study was to determine the effect of EP on lipopolysaccharide (LPS)-induced acute lung injury (ALI). METHODS: 5 weeks old, male BALB/c mice were used. ALI was induced by an intratracheal instillation of LPS 0.5mg/Kg/50microliter of saline. The mice were divided into the control, LPS, EP+LPS, and LPS+EP groups. In the control group, balanced salt solution was injected intraperitoneally 30 minutes before or 9 hours after the intratracheal instillation of saline. In the LPS group, a balanced salt solution was also injected intraperitoneally 30 minutes before or 9 hours after instillation the LPS. In the EP+LPS group, 40mg/Kg of EP was injected 30 minutes before LPS instillation. In the LPS+EP group, 40mg/Kg of EP was injected 9 hours after LPS instillation. The TNF-alpha and IL-6 concentrations in the bronchoalveolar lavage fluid (BALF), and that of NF-KappaB in the lung tissue were measured in the control, LPS and EP+LPS groups at 6 hours after instillation of saline or LPS, and the ALI score and myeloperoxidase (MPO) activity were measured in all four groups 24 and 48 hours after LPS instillation, respectively. RESULTS: The TNF-alpha and IL-6 concentrations were significantly lower in the EP+LPS group than in the LPS group (p<0.05). The changes in the concentration of these inflammatory cytokines were strongly correlated with that of NF-kappaB (p<0.01). The ALI scores were significantly lower in the EP+LPS and LPS+EP groups compared with the LPS group (p<0.05). In the EP+LPS group, the MPO activity was significantly lower than the LPS group (p=0.019). CONCLUSION: EP, either administered before or after LPS instillation, has protective effects against the pathogenesis of LPS-induced ALI. EP has potential theurapeutic effects on LPS-induced ALI.
Acute Lung Injury*
;
Animals
;
Bronchoalveolar Lavage Fluid
;
Cytokines
;
Humans
;
Interleukin-6
;
Lung
;
Male
;
Mice
;
NF-kappa B
;
Peroxidase
;
Pyruvic Acid*
;
Tumor Necrosis Factor-alpha