1.A radiological study on articulotrochanteric distance index after Legg-Parthes' disease.
Seok Hyun LEE ; Sung Su HONG ; Yun Chul KOH ; Kyung Wook RHA
The Journal of the Korean Orthopaedic Association 1992;27(1):12-17
No abstract available.
2.Arthroscopic Evaluation of Subluxation of the Long Head of the Biceps Tendon and Its Relationship with Subscapularis Tears.
Kyoung Hwan KOH ; Su Cheol KIM ; Jae Chul YOO
Clinics in Orthopedic Surgery 2017;9(3):332-339
BACKGROUND: The purpose of this study was to evaluate the angle between the long head of the biceps tendon (LHBT) and the glenoid during arthroscopic surgery and its correlation with biceps subluxation on magnetic resonance imaging (MRI). Furthermore, we evaluated the relationship of this angle with subscapularis tears and biceps pathologies. METHODS: MRI and arthroscopic images of 270 consecutive patients who had undergone arthroscopic surgery were retrospectively evaluated. On MRI, 60 shoulders with biceps subluxation and 210 shoulders without subluxation were identified. On the arthroscopic view from the posterior portal, the angle between the LHBT and the glenoid (biceps-glenoid angle) was measured. The biceps-glenoid angle, tears of the LHBT, degenerative superior labrum anterior to posterior (SLAP) lesions, and presence of a subscapularis tear were compared according to the presence of biceps subluxation on MRI. RESULTS: In the subluxation group, 51 (85%) had a subscapularis tendon tear and all shoulders showed biceps tendon pathologies. In the non-subluxation group, 116 (55.2%) had a subscapularis tendon tear, 125 (60%) had tears in the biceps tendon, and 191 (91%) had degenerative SLAP lesions. The incidences of subscapularis tears (p < 0.001) and biceps pathologies (p < 0.001) showed significant differences. The mean biceps-glenoid angle was 87.0° (standard deviation [SD], 11.4°) in the subluxation group and 90.0° (SD, 9.6°) in the non-subluxation group, showing a statistically significant difference (p = 0.037). CONCLUSIONS: Shoulders with subluxation of the biceps tendon on the preoperative MRI revealed more pathologies in the subscapularis tendon and biceps tendon during arthroscopy. However, the arthroscopically measured biceps-glenoid angle did not have clinical relevance to the determination of subluxation of the LHBT from the bicipital groove.
Arthroscopy
;
Head*
;
Humans
;
Incidence
;
Magnetic Resonance Imaging
;
Pathology
;
Retrospective Studies
;
Shoulder
;
Tears*
;
Tendons*
3.Improved stress analyses of dental systems implant by homogenization technique.
Chul Su KOH ; Man Sup LEE ; Kui Won CHOI
The Journal of the Korean Academy of Periodontology 1997;27(1):263-290
Homogenization technique is employed to investigate the series of stress analyses of mandible for three different types of dental implants. This technique helps to make proper material model of bone and analyze such a non homogeneous structure at the level of individual microstructural unit. The stress analyses with homogenization technique show much higher stress level in the sponge bone, compared to those of conventional FEM. It also manifested that even a minor lateral force results in crucial stresses in the dental implant system and that the macroscale model should take the shape and size after real mandible to produce reasonable solution in the analyses of dental implant systems. The shapes of dental implants simulated in this study are rectangularcross-sectioned type, hemi-sphere rooted type, and wedge type implant. The stress states of mandible with hemisphere rooted type implant and wedge type implant show similar levels, while those with sectioned rectangular implant results in higher stresses. It is suggested that the distance between the implant tip and cortical bone be kept far enough to prevent stress concentrations in the mandible.
Dental Implants
;
Mandible
;
Porifera
4.Avoidance of Injury to the Inferior Alveolar Nerve in Mandibular Angle Contouring; Maneuver of One Inch.
Kun Chul YOON ; Sang Yup YOON ; Kyung Suck KOH ; Sang Tae KIM
Journal of the Korean Society of Aesthetic Plastic Surgery 2003;9(2):33-36
Complications of mandibular angle contouring may include damage to the inferior alveolar nerve. This study was undertaken to quantify the path of the inferior alveolar nerve in the normal human mandible and in the mandibles of patients presenting for cosmetic reduction of the mandibular angles. The study was based upon the panorama radiography of 20 normal population (ten men, ten women) and 20 patients (ten men, ten women) complaining of square face. Using panorama radiographs and paper tracing, the distance from the "A" point (Fig. 1) to the inferior alveolar nerve was recorded within its mandibular osseous canal in the mandibular angle. The nerve was identifiable in each ramus. The average distance between A point and the other points along the osseous canal is 21.48mm. Therefore together with an additional margin of several millimeters, it is important to maintain a safe distance of at least an inch (25mm) between the saw and the anterior border of the ramus. From our clinical experiences, we are suggesting that this "1 inch maneuver" to be very helpful in avoiding injury to the inferior alveolar nerve, especially for the novice surgeon.
Humans
;
Male
;
Mandible
;
Mandibular Nerve*
;
Radiography
;
Radiography, Panoramic
5.Comparison of Efficacy and Satisfaction between the TVT-SECUR(R) and MONARC(R) Procedures for the Treatment of Female Stress Urinary Incontinence.
Moo Youl JEONG ; Su Jin KIM ; Hyo Sin KIM ; Jun Sung KOH ; Joon Chul KIM
Korean Journal of Urology 2010;51(11):767-771
PURPOSE: The tension-free vaginal tape SECUR(R) (TVT-S) is a new, minimally invasive sling procedure for treating female stress urinary incontinence (SUI). However, results of comparisons of the TVT-S with the transobturator tape (TOT) sling are lacking. Therefore, we investigated outcome and satisfaction of the TVT-S procedure compared with the TOT procedure. MATERIALS AND METHODS: We included 64 patients with SUI who underwent the TVT-S (n=31) or TOT (MONARC(R), n=33) procedure and were followed up for more than 1 year. The preoperative evaluation included history taking, pelvic examination, consecutive 3-day voiding diary, and urodynamic study including Valsalva leak point pressure. Postoperatively, continence status and subjective patient satisfaction were evaluated. Cure was defined as the absence of any episodes of involuntary urine leakage during stressful activities and a stress cough test. RESULTS: The TVT-S group (71.0%) showed a slightly lower cure rate than did the MONARC group (84.8%); however, there was no significant difference between the 2 groups (p=0.179). Nine of the patients who underwent the TVT-S showed incontinence postoperatively. Among them, the H approach was used in 7 patients and the U approach was done in 2 patients. Following TVT-S and MONARC, the patients' reported satisfaction was 80.6% and 78.8%, respectively. Patient satisfaction did not differ significantly between the two groups (p=0.854). CONCLUSIONS: Our results showed that the TVT-S and MONARC procedures may be comparable in terms of cure rate and patient satisfaction after more than 1 year of follow-up.
Cough
;
Female
;
Follow-Up Studies
;
Gynecological Examination
;
Humans
;
Patient Satisfaction
;
Suburethral Slings
;
Surgical Procedures, Minimally Invasive
;
Treatment Outcome
;
Urinary Incontinence
;
Urinary Incontinence, Stress
;
Urodynamics
6.Lamotrigine-induced Anticonvulsant Hypersensitivity Syndrome: Treatment with Steroid and Intravenous Immunoglobulin.
Su Jeong YOU ; Ji Yeon KOH ; Hoon Chul KANG
Journal of the Korean Child Neurology Society 2007;15(1):90-93
Lamotrgine is an antiepileptic drug that is effective for multiple types of seizure and has side-effects such as headache, nausea, dizziness, diplopia, ataxia, cutaneous lesions, and anticonvulsant hypersensitivity syndrome. Anticonvulsant hypersensitivity syndrome consists of the hallmark features of fever, rash, lymphadenopathy and internal organ involvement, induced by aromatic anticonvulsants, for example phenytoin, phenobarbital, carbamazepine, and lamotrigine. We report a case of 13-year-old girl who had a fever, generalized erythematous skin eruption, facial edema, eosinophilia, and elevated liver enzyme induced by lamotrigine and resolved with discontinuation of medication and intravenous steroid and immunoglobulin.
Adolescent
;
Anticonvulsants
;
Ataxia
;
Carbamazepine
;
Diplopia
;
Dizziness
;
Edema
;
Eosinophilia
;
Exanthema
;
Female
;
Fever
;
Headache
;
Humans
;
Hypersensitivity*
;
Immunoglobulins*
;
Liver
;
Lymphatic Diseases
;
Nausea
;
Phenobarbital
;
Phenytoin
;
Seizures
;
Skin
7.A Case of Retinal Hemorrhage after Climbing the Himalaya Mountains.
Yong Su CHO ; Hyoung Jun KOH ; Soon Hyun KIM ; Sung Chul LEE ; Oh Woong KWON
Journal of the Korean Ophthalmological Society 2001;42(1):203-207
High altitude exposure may produce multiple symptoms of mountain sickness. A 27-year-old man presented with metamorphopsia in his left eye which occurred following climbing the Himalaya Mountains. His best corrected visual acuity was right eye, 0.9 and left eye, 0.3. Ophthalmoscopy disclosed retinal hemorrhages in both eyes and a subfoveal hemorrhage in left eye. Fluorescein angiography showed blockage of fluorescence caused by retinal hemorrhages. Indocyanin green angiography showed no hot spot. One month later, best corrected visual acuity of his left eye was 0.4 and the degree of metamorphopsia decreased. Thus we report the case of mountain sickness who showed retinal hemorrhage and subfoveal hemorrhage with a review of available literatures.
Adult
;
Altitude
;
Altitude Sickness
;
Angiography
;
Fluorescein Angiography
;
Fluorescence
;
Hemorrhage
;
Humans
;
Ophthalmoscopy
;
Retinal Hemorrhage*
;
Retinaldehyde*
;
Vision Disorders
;
Visual Acuity
8.Nocturnal Arterial Oxygen Saturation Monitoring in Patients with Respiratory Disease.
In Seon CHOI ; Jae Beom YANG ; Young Chul KIM ; Ik Joo CHUNG ; Yu Ho KANG ; Yeoung Il KOH ; Sang Seon PARK ; Min Su LEE ; Kyung Ok PARK
Tuberculosis and Respiratory Diseases 1994;41(2):103-110
To find out the predictors of nocturnal arterial oxygen desaturation in patients with respiratory diseases, transcutaneous oxygen saturation(StcO2) monitoring studies using a pulse oximeter were performed during sleep in 20 patients. StcO2 was decreased more than 4% from the baseline value in 18 patients(90%) and more than 10%('Desaturator') in 8(40%). Five of the seven patients(71.4%) with awake PaO2<60mmHg and three of the thirteen patients(23.1%) with awake PaO2≥60mmHg were 'desaturators'. The awake PaO2/FIO2 and PaO2/PAO2 could distinguish 'desaturator' from 'nondesaturator, and PaO2, SaO2 or StcO2 could not. These results suggest that the nocturnal oxygen desaturation depends on the severity of the underlying disease rather than the baseline PaO2. Anthropomorphic and lung function factors could not separate between 'desaturator' and 'non-desaturator', and about a quarter of patients with a wake PaO2≥60mmHg developed significant desaturation. Therefore, it is necessary to monitor the nocturnal arterial oxygen saturation in patients with respiratory diseases regardless of their severity of airflow obstruction or awake PaO2.
Humans
;
Lung
;
Oxygen*
9.Two Cases of Pneumocystitis Carinii Pneumonia in AIDS withNormal Findings in Chest Roentgenogram.
Sang Seon PARK ; Young Il KOH ; Min Su LEE ; Joo Yeol YANG ; Seong Chul IM ; An Soo CHANG ; Hyun Joo NA ; Hyung Kwan PARK ; Young Chul KIM ; In Seon CHOI ; Kyung Ok PARK
Tuberculosis and Respiratory Diseases 1995;42(3):394-399
Pneumocystis carinii pneumonia(PCP) remains the leading cause of death in patients with AIDS. Although the most common radiographic presentation of PCP is the developme-nt of diffuse, bilateral interstitial or alveolar infiltrates in 48 to 86 per cent of AIDS patients, PCP may also present with either a completely normal or only minimally abnormal chest radiograph in 6 to 23 per cent of patients. We experienced two patients with AIDS presenting high fever and chest pain but normal chest radiograph, who had been proved to have PCP by bronchoalveolar lavage and trans-bronchial lung biopsy.
Biopsy
;
Bronchoalveolar Lavage
;
Bronchoscopy
;
Cause of Death
;
Chest Pain
;
Fever
;
Humans
;
Lung
;
Pneumocystis carinii
;
Pneumonia*
;
Radiography, Thoracic
;
Thorax*
10.A Clinical observation on Skin Disease of Elderly patients.
Woo Seok KOH ; Ho Chel CHOI ; Byung Su KIM ; Si Won LEE ; Seung Chul LEE ; Jae Hak YOO ; Kae Jeung KIM ; Seung Young JUNG ; Un Cheol YEO ; Eil Soo LEE ; Young Gull KIM ; Hee Chul EUN
Korean Journal of Dermatology 1999;37(5):614-619
BACKGROUND: It is a trend that the average life span is prolonged in proportion to the advance of socio-economy and medical science. Consequently, the number of elderly patients with skin diseases is increasing. OBJECTIVE: This study was performed to see the change of patterns of skin diseases in elderly patients. METHODS: One thousand four hundred and twenty elderly patients, over the age of 65, who visited the departments of dermatology and in five hospitals, from January 1, 1997 to December 31, 1997 were selected. We surveyed the frequeney of skin disease by types and the distributions by month, season and age.
Aged*
;
Dermatology
;
Epidemiologic Studies
;
Humans
;
Seasons
;
Skin Diseases*
;
Skin*