1.A Case of Neurocutaneous Melanosis in a 46-year Old Man.
Sung Eun CHANG ; Hwa Jung LEE ; Jae Hee SEO ; Jai Kyoung KOH
Annals of Dermatology 1997;9(4):293-297
Neurocutaneous melanosis is a very rare congenital syndrome characterized by the presence of large or multiple congenital melanocytic nevi and benign or malignant melanotic tumors of the central nervous system. We report herein a case of neurocutaneous melanosis with leptomeningeal melanosis and a malignant melanoma of the right temporal lobe in a 46-year old man. The case is exceptional as regards the late onset of symptoms and death. Even without a malignant melanoma, the symptomatic neurocutaneous melanosis has a fatal course. The syndrome is rare but lethal, so the dermatologist should be aware of this syndrome when evaluating the patients with large or numerous congenital melanocytic nevi so as to watch for the usual signs of increased intracranial pressure and to take prompt palliative measures.
Central Nervous System
;
Humans
;
Intracranial Pressure
;
Melanoma
;
Melanosis*
;
Nevus, Pigmented
;
Temporal Lobe
2.Coracoclavicular Ligament Suture Augmentation with Anatomical Locking Plate Fixation for Distal Clavicle Fracture.
Tae Kang LIM ; Min Soo SHON ; Hyung Gon RYU ; Jae Sung SEO ; Jae Hyun PARK ; Young KO ; Kyoung Hwan KOH
Clinics in Shoulder and Elbow 2014;17(4):175-180
BACKGROUND: For Neer type IIB fracture of distal clavicle with coracoclavicular ligament injury, various surgical treatments have been used in literatures. However, there was no consensus on the optimal treatment. The aim of this study is to report the clinical and radiological results of open reduction and internal fixation of unstable distal clavicle fracture and suture augmentation of disrupted coracoclavicular ligament. METHODS: A prospective study was performed in 23 patients with Neer type IIB distal clavicle fracture in Seoul Medical Center, Eulji Hospital, and National Medical Center. Firstly, suture anchors are inserted in the base of coracoid process and preliminary reduction was achieved by tie-off of three suture limbs around the clavicle. Then, the final fixation was completed with anatomical locking plate. Bony union and the distance between coracoclavicular ligaments were evaluated. Clinical results and complications including stiffness and secondary procedures were evaluated. RESULTS: Bony union was achieved in all cases except one (22 of 23). At mean 14.9 months, no significant difference in the mean coracoclavicular distance was observed compared to uninjured shoulder (8.2 +/- 7.9 mm versus 7.3 +/- 3.4 mm, p=0.14). Pain visual analogue scale, American Shoulder and Elbow Surgeons score, Constant score, and Disabilities of the Arm, Shoulder and Hand score were 0.5, 83.4, 78.5, and 6.2, respectively. Revision surgery was performed in one case of nonunion. Four patients who complained of skin irritation underwent implant removal. CONCLUSIONS: In cases of an unstable distal clavicle fracture with coracoclavicular ligament disruption, satisfactory clinical results were obtained by locking plate fixation and coracoclavicular ligament suture augmentation concurrently.
Arm
;
Clavicle*
;
Consensus
;
Elbow
;
Extremities
;
Hand
;
Humans
;
Ligaments*
;
Prospective Studies
;
Seoul
;
Shoulder
;
Shoulder Fractures
;
Skin
;
Suture Anchors
;
Sutures*
3.A Case of Total Descemet's Nembrane Detachment Treated by Non-expansible SF6 Gas Iinfusion..
Jae Woong KOH ; Woo Jeong WOON ; Kyoung Soo NA
Journal of the Korean Ophthalmological Society 2002;43(12):2598-2602
PURPOSE: We intend to report that a case of total Descemet's membrane detachment, occured after cataract operation which was reattached with non-expansible SF6 gas infusion. METHODS: 77-year-old woman who was undertaken cataract surgey 7days ago showed corneal edema, decreased visual acuity and rolled detached Descemet's membrane which was attached inferior cornea. Nine days after cataract surgery, 0.25 ml of non-expansible SF6 gas 20% was infused into anterior chamber. RESULTS: Three days after intracameral injection of non-expansible SF6 gas 20%, Descemet's membrane was begin to reattach and corneal edema was improved progressively. CONCLUSIONS: When total Descemet's membrane detachment occurs after intraocular surgery, intracameral injection of non-expansible SF6 gas is to be a effective treatment.
Aged
;
Anterior Chamber
;
Cataract
;
Cornea
;
Corneal Edema
;
Descemet Membrane
;
Female
;
Humans
;
Visual Acuity
4.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*
5.Total Elbow Arthroplasty: Clinical Outcomes, Complications, and Revision Surgery
Jae Man KWAK ; Kyoung Hwan KOH ; In Ho JEON
Clinics in Orthopedic Surgery 2019;11(4):369-379
Total elbow arthroplasty is a common surgical procedure used in the management of advanced rheumatoid arthritis, posttraumatic arthritis, osteoarthritis, and unfixable fracture in elderly patients. Total elbow prostheses have evolved over the years and now include the linked, unlinked, and convertible types. However, long-term complications, including infection, aseptic loosening, instability, and periprosthetic fracture, remain a challenge. Here, we introduce each type of implant and evaluate clinical outcomes and complications by reviewing the previous literature.
Aged
;
Arthritis
;
Arthritis, Rheumatoid
;
Arthroplasty
;
Elbow Prosthesis
;
Elbow
;
Humans
;
Osteoarthritis
;
Periprosthetic Fractures
;
Reoperation
;
Treatment Outcome
6.Radiotherapy for Oral Cavity Cancer.
Jae Won SHIM ; Seong Yul YOO ; Kyoung Hwan KOH ; Chul Koo CHO ; Hyong Geun YUN ; Jae Young KIM
Journal of the Korean Society for Therapeutic Radiology 1993;11(2):267-276
Eighty five patients of oral cavity cancer, treated with radiation at the Department of Therapeutic Radiology, Korea Cancer Center Hospital, during the period from March 1985 to September 1990 were analyzed retrospectively. Among 85 patients, 37 patients were treated with radiation only and 48 patients were treated with radiation following surgery And 70 patients received external irradiation only by 60Co with or without electron, the others were 7 patients for external irradiation plus interstitial implantation and 8 patients for external irradiation plus oral cone electron therapy. Primary sites were mobile tongue for 40 patients, mouth floor for 17 patients, palate for 12 patients, gingiva including retromolar trigone for 10 patients, buccal mucosa for 5 patients, and lip for 1 patient. According to pathologic classification, squamous cell carcinoma was the most common (77 patients). According to AJC TNM stage, stage I + II were 28 patients and stage III+IV were 57 patients. Acturial overall survival rate at 3 years was 43.9%, 3 year survival rates were 60.9% for stage I + II, and 23.l% for stage III+IV, respectively. As a prognostic factor, primary T stage was a significant factor (p<0.01). The others, age, location, lymph node metastasis, surgery, radiation dose, and cell differentiation were not statistically significant. Among those factors, radiation plus surgery was more effective than radiation only in T3+T4 or in any N stage although it was not statistically sufficient(p<0.1). From those results, it was conclusive that definitive radiotherapy was more effective than surgery especially in the view of pertainig of anatomical integrity and function in early stage, and radiation plus surgery was considered to be better therapeutic tool in advanced stage.
Carcinoma, Squamous Cell
;
Cell Differentiation
;
Classification
;
Gingiva
;
Humans
;
Korea
;
Lip
;
Lymph Nodes
;
Mouth Floor
;
Mouth Mucosa
;
Mouth*
;
Neoplasm Metastasis
;
Palate
;
Radiation Oncology
;
Radiotherapy*
;
Retrospective Studies
;
Survival Rate
;
Tongue
7.Neutron Therapy of Unresectable and Recurrent Rectal Cancer.
Seong Yul YOO ; Kyoung Hwan KOH ; Chul Koo CHO ; Woo Yun PARK ; Hyong Geun YUN ; Jae Won SHIM
Journal of the Korean Society for Therapeutic Radiology 1993;11(1):127-132
Total of 53 patients of unresectable and recurrent rectal cancer treated with neutron beam during the period from Oct. 1987 to Apr. 1992 were analyzed. Dose fractionation for the neutron only group was 1.5 Gy per fraction, 3 fraction per week, 21 Gy/41/2 wks for 42 patients out of 53(76%). Neutron only but modified fractionation schedule (10% more or less of total dose) was applied for 9 patients, and mixed team (neutron boost) was for 4 patients. Complete tumor response was obtained in 40 patients(76% response rate). Local control rate was 28 out of 53(53%). Statistically significant better prognostic factors for local control were age below 49 years old (15/22, 68%) than above 50 years old (13/31, 42%), male (20/32, 63%) than female(8/21, 38%), tumor size less than 5 cm and non-metastatic(16/24, 67%) than size more than 5 cm or metastatic(12/29, 4l%). Major complication had developed in 7 patients (13%). Two year overall survival rate by Kaplan-Meier method was 30%, but it was rised to, 47% when the tumor was less than 5cm non-metastatic.
Appointments and Schedules
;
Dose Fractionation
;
Humans
;
Male
;
Middle Aged
;
Neutrons*
;
Rectal Neoplasms*
;
Survival Rate
8.Anatomical Reduction of All Fracture Fragments and Fixation Using Inter-Fragmentary Screw and Plate in Comminuted and Displaced Clavicle Mid-Shaft Fracture.
Kyoung Hwan KOH ; Min Soo SHON ; Seung Won LEE ; Jong Ho KIM ; Jae Chul YOO
Journal of the Korean Fracture Society 2012;25(4):300-304
PURPOSE: To report the treatment results of anatomical reduction of all fracture fragments and internal fixation using an inter-fragmentary screw and plate in displaced mid-shaft clavicle fracture with comminution. MATERIALS AND METHODS: Between June 2005 and August 2011, 13 consecutive displaced clavicle fractures with comminution (Edinburgh classification IIB2) treated by anatomic reduction and internal fixation using inter-fragmentary screw and plate were retrospectively evaluated. There were 11 male and 2 female patients with a mean age of 37.4 years (15~55 years). The right clavicle was injured in 4 patients and the dominant arm was involved in 46%. The mean duration from trauma to surgery was 7.0 days. The cause of injury was a traffic accident in three, a fall in two, and sports activity or direct injury in eight patients. All of the fracture pieces were anatomically reduced and fixed with inter-fragmentary screws. An additional plate was applied to maintain and reinforce the reduction of the fracture. Radiographic assessments for the numbers of fragments and the amount of shortening and displacement were performed. To verify the fracture healing and determine the time from fracture surgery to union and complications, all of the radiographs taken after surgery were evaluated. RESULTS: The number of fragments was 2 in 7 cases, 3 in 5 cases, and 6 in one case. The mean shortening of the clavicle was 1.1 cm (0.3~2.1 cm) and mean displacement between the main fragments was 2.6 cm (1.3~4.5 cm). The mean duration of follow-up was 16.5 months (8~26 months). Radiographic union was achieved in all patients with a mean time to union of 10.8 weeks (8~14 weeks). There were no complications including metal failure, nonunion, or infection. CONCLUSION: Anatomical reduction of all the fracture fragments and fixation using inter-fragmentary screws in addition to the usual plate fixation showed good fracture healing in displaced clavicle fracture with comminution.
Accidents, Traffic
;
Arm
;
Clavicle
;
Displacement (Psychology)
;
Female
;
Follow-Up Studies
;
Fracture Healing
;
Fractures, Comminuted
;
Humans
;
Male
;
Retrospective Studies
;
Sports
9.Microsurgical consideration in the liver transplantation from living related donor.
Sang Hoon HAN ; Sang Jae NAM ; Sang Hoon PARK ; Kyoung Suk KOH ; Sung Gyu LEE ; Young Joo LEE ; Kwang Min PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(5):921-927
Living-Related-Liver-Transplantation(LRLT) has been established as a reliable method of treatment for patients with end-stage liver disease when the scarcity of cadaveric organ donor was considered. But the hepatic artery is high at risk in thrombosis(HAT) following LRLT. So microsurgical technique was introduced in anastomosis of hepatic artery. This study was aimed at using microsurgical technique in LRLT and presenting some technical details of the procedures. From December 1994 to November 1997, a sereis of 41 LRLTs on patients with end-stage liver disease was performed with follow-up period of 5 to 40 months(mean,15.6 months). Organs were donated by living-related donors(n=36) and living-nonrelated ones(n=5). Hepatic artery was reconstructed with microsurgical technique by plastic surgeon. All hepatic arteries were patent intraoperatively and postoperatively except one case, which had leakage at anastomosed site on the postoperative fourth day.Hepatic artery is high at risk in thrombosis(HAT) following LRLT due to the caliber discrepancy and technical difficulties. To overcome these risks, microsurgical technique was introduced. The technique has greatly reduced arterial complication. However, there are some difficulties in microsurgery of LRLT, which are somewhat different from those in other microsurgery fields: the first difficulty is to obtain a good operative field and a sufficient view through the microscope. The second one is to overcome arterial caliber discrepancy. And the last is to achieve a stable posture in narrow and deep operating field against the respiratory movement and heartbeat.With the persistent team approach of plastic and general surgeons in the field of LRLT, we could have reduced the HAT and have had better outcome after LRLT.
Arteries
;
Cadaver
;
Follow-Up Studies
;
Hepatic Artery
;
Humans
;
Liver Diseases
;
Liver Transplantation*
;
Liver*
;
Microsurgery
;
Posture
;
Tissue Donors*
10.Hypoesthesia after Open Reduction and Plate Fixation of Clavicular Midshaft Fractures: Correlation with Plate Location and Clinical Features of Hypoesthesia.
Seong Hun KIM ; Joon Yub KIM ; Kyoung Hwan KOH ; Myung Gon JUNG ; Jae Ho CHO
Journal of the Korean Fracture Society 2016;29(2):121-127
PURPOSE: The aim of this study is to evaluate the correlation between the location of the plate and the incidence of clavicular hypoesthesia and the clinical features of patients with clavicular hypoesthesia after open reduction and internal fixation of clavicular midshaft fractures. MATERIALS AND METHODS: Seventy-eight patients who underwent open reduction and plate fixation for clavicle midshaft fractures between March 2013 and October 2014 were assessed for eligibility. The total clavicular length (A), the distance to the medial end of the plate from the sternoclavicular joint (B), and the distance to the lateral end of the plate from the sternoclavicular joint (C) were measured. Correlation between the location of the clavicular plate and the incidence of clavicular hypoesthesia was evaluated. In addition, the severity, and recovery of hypoesthesia were evaluated. Patient satisfaction, pain visual analogue scale were evaluated regarding hypoesthesia. RESULTS: The incidence of hypoesthesia was 32.1% (25/78 patients). No correlation was observed with respect to the location of the clavicular plate and the incidence of clavicular hypoesthesia (p=0.666 at the medial end, p=0.369 at the lateral end). Recovery from hypoesthesia was observed in 23 out of 25 patients (p=0.008). Patient satisfaction and pain showed negative correlation with the incidence of hypoesthesia (p=0.002 and p=0.022). CONCLUSION: There was no correlation between clavicular hypoesthesia and the plate location. Although most cases of hypoesthesia were recovered, we should try to avoid hypoesthesia due to the negative 'correlation' with patient satisfaction and pain.
Clavicle
;
Fracture Fixation
;
Humans
;
Hypesthesia*
;
Incidence
;
Patient Satisfaction
;
Statistics as Topic
;
Sternoclavicular Joint