1.The Displaced Bucket-Handle Tear of the Meniscus: MRi Findings.
Young Mi KWON ; Seon Kwan JUHNG ; Jong Jin WON ; Gyung Hi PARK ; Gang Deuk KIM
Journal of the Korean Radiological Society 1994;31(1):145-150
PURPOSE:To describe the features of displaced bucket-handle tears of the menisci on magnetic resonance (MR) images and to assess associated knee injuries. MATERIALS AND METHODS: We retrospectively reviewed coronal and sagittal MR images in 21 bucket-handle tears. The subjects were patients who had underwent preoperative MR evaluations of the knee and were identified from the arthroscopic surgical records as bucket-handle tear. We also described patterns of associated injuries. RESULTS:On coronal MR images, (a) in all cases, peripheral portion of the meniscus(bucket) had the appearance of a truncated or altered wedge;(b) central fragments(handle) were observed to be sitting in the intercondylar notch(16 cases) or located between the fernoral condyle and tibial plateau (5 cases). On sequential sagittal MR images, (c) the bow-tie appearance of the body of the meniscus was not seen (13 cases);(d) the bow-tie appearance of the displaced inner fragment was seen at the intercondylar notch level (9 cases);(e) "double posterior cruciate ligament" sign was presented (7 cases). Associated joint abnormalities included anterior cruciate ligament tears(l 1), contralateral meniscal tears(l 1), posterior cruciate ligament tears(3), medial collateral ligament tears(3), osteoarthritis(1), and Baker's cyst(l). CONCLUSION:Awareness of these characteristic MR findings(a-e) may increase the sensitivity of MR imaging in the diagnosis of displaced bucket-handle tears, and the MRI may be helpful to correctly characterize the displaced fragment and patterns of associated injury, providing arthroscopists a guide to appropriate surgical plans.
Anterior Cruciate Ligament
;
Collateral Ligaments
;
Diagnosis
;
Humans
;
Joints
;
Knee
;
Knee Injuries
;
Magnetic Resonance Imaging*
;
Posterior Cruciate Ligament
;
Retrospective Studies
2.Apoptotic Effects of 6-Gingerol in LNCaP Human Prostate Cancer Cells.
Hyun Woo KIM ; Deuk Hee OH ; Chaeyong JUNG ; Dong Deuk KWON ; Young Chai LIM
Soonchunhyang Medical Science 2011;17(2):75-79
OBJECTIVE: 6-Gingerol, one component of ginger (Zingiber officinale) compound, has been known to possess anti-inflammatory, analgesic, anti-emetic, and anti-cancer effects. In this study, the apoptotic ability of 6-gingerol was investigated in human prostate cancer cells. METHODS: 3-(4,5-Dimethylthiazol-2-yl)- 2,5-diphenyl-tetrazolium bromide (MTT) assay, flow cytometry, and western blot analysis were done in LNCaP human prostate cancer cell lines treated with the various doses of 6-gingerol for the different durations of drug exposure. RESULTS: 6-Gingerol in doses ranging from 100 to 300 microM induced dose- and time-dependent inhibition of cell viability in prostate cancer cells by using MTT assay. Maximal inhibition of cell viability was observed at 300 microM of 6-gingerol for 48 hours treatment in LNCaP cells. 6-Gingerol at the dose of 100 microM did not produce any significant change in apoptotic cells in flow cytometry analysis. However, significant increase in sub-G0/G1 phase was observed in cells treated with 200 and 300 microM of 6-gingerol. Any significant cell cycle arrest was not induced by 6-gingerol. In western blotting analysis, expression of caspase-3 was not evident in cells treated with 6-gingerol for 24 hours. However, 48 hours treatment with 6-gingerol altered the expression of caspase-3 in LNCaP cells. Expression of cleaved poly showed the dose-dependent fashion in both 24 hours and 48 hours treatment of 6-gingerol. CONCLUSION: These observations suggest that 6-gingerol may induce apoptosis in LNCaP human prostate cancer cells.
Apoptosis
;
Blotting, Western
;
Caspase 3
;
Catechols
;
Cell Cycle Checkpoints
;
Cell Line
;
Cell Survival
;
Fatty Alcohols
;
Flow Cytometry
;
Ginger
;
Humans
;
Poly(ADP-ribose) Polymerases
;
Prostate
;
Prostatic Neoplasms
3.The Action Mechanism of Relaxation Effect of Atropine on the Isolated Rabbit Corpus Cavernosum.
Young Deuk CHOI ; Woo Sik CHUNG ; Jong Sik HA ; Sung Won KWON
Korean Journal of Urology 1995;36(6):593-600
Atropine is the classic antimuscarinic anticholinergic drug that bas been used to block cholinergic neurotransmission in basic research and received recent interest clinically in the intracavernous pharmacotherapy of erectile dysfunction. It has been suggested that at low dose(0.00000001M), atropine blocks muscarinic receptors, thereby reducing both cholinergic of the adrenergic and cholinergic excitation of the NANC neuroeffector systems, on the other hand, at large pharmacological dose(0.001M),induces the release of EDRF which recently has been identified as nitric oxide(NO) or NO like substance. Therefore, we tried to confirm the action of atropine in the cavernosal tissue and define its mechanism. Strip of rabbit corpus cavernosum were isolated and mounted in 10 ml organ chambers to measure isometric tension. Muscle strips submaximally precontracted with phenylephrine(5x0.000001M) and treated with increasing concentrations of atropine(0.00000000001M to 0.00lM) showed tension increase upto 0.00000001M of atropine, and thereafter, relaxed concentration dependently(0.0000001M: 43.7%, 0. 000001M: 63.0%,0.00001M:86.2%,0.0001M:93.6%,0.001M:100%). Relaxations to atropine(5x0.000001M) were not inhibited even partially by endothelial disruption or by pretreatment with methylene blue or pyrogallol. Pretreatment of muscle strips with atropine(5x0.00000lM) caused concentration- related inhibition of a phenylephrine induced contraction, and in calcium-free high potassium depolarizing solution, decreased basal tension as well as inhibited contraction induced by CaC12. However, atropine did not produce reduction of responses to depolarizing medium(20, 40, 80mM KCl). With these results we can confirm the relaxation effect of atropine at a larger dose(>0.0000001M)on the cavernosal smooth muscle and suggest that its action is mediated by increasing intracellular calcium sequestration,not by hyperpolarization or EDRF.
Atropine*
;
Calcium
;
Drug Therapy
;
Erectile Dysfunction
;
Hand
;
Male
;
Methylene Blue
;
Muscle, Smooth
;
Phenylephrine
;
Potassium
;
Pyrogallol
;
Receptors, Muscarinic
;
Relaxation*
;
Synaptic Transmission
4.Two Cases of Cytomegalovirus Pneumonia after CD34 Selected Autologous Stem Cell Transplantation.
Young Lan KWON ; Jae Kwon JOENG ; Ga Young KIM ; Sae Rom KIM ; Se Young LEE ; Young Deuk YOUN ; Jung Lim LEE ; Won Sik LEE ; Gun Young KWON ; Jae Hoo PARK
Korean Journal of Hematology 2006;41(2):134-137
Cytomegalovirus (CMV) pneumonia is an important cause of treatment related mortality after allogeneic stem cell transplantation (SCT) and autologous SCT, particularly in a CD34 selected setting. There is little known about the immune reconstitution pertaining to the CMV after CD34 selected SCT. However, several studies have suggested there is more profound immunodeficiency early in the CD34 selected population compared with the unselected population. We encountered two fatal cases of CMV pneumonia at the CD34 selected SCT for T-cell lymphoblastic lymphoma and high-risk breast cancer that was confirmed through a lung biopsy and bronchoalveolar lavage. In conclusion, autologous CD34 selected CMV seropositive recipients need to be monitored in a similar manner to allogeneic recipients.
Biopsy
;
Breast Neoplasms
;
Bronchoalveolar Lavage
;
Cytomegalovirus*
;
Lung
;
Mortality
;
Pneumonia*
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
Stem Cell Transplantation*
;
Stem Cells*
;
T-Lymphocytes
5.Finger Injury by Green Onion Cutting Machine.
Young Min YIM ; Deuk Young OH ; Sung No JUNG ; Jong Won RHIE ; Sang Tae AHN ; Ho KWON
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2009;36(1):46-50
PURPOSE: Finger injury by green onion cutting machine is one of the common hand injuries in the kitchen. It has a unique feature: there are multiple parellel laceration 3 -5mm wide. There are two directions of injuries(vertical, oblique). It may involve bone, tendon, nerve, and vessel injuries. We discuss its management and the long -term progress. METHODS: We have treated six patients from 2003 to 2007. We carried out low tension approximation with thin suture materials to avoid ischemia and performed the additional operation as nail bed repair, tenorrhaphy, open reduction, vessel anastomosis, and composite graft. We reviewed the record of initial injury and collected the follow-up record. RESULTS: They were all middle aged - women who had worked in the kitchen. Right hand was dominent over left hand. The ratio of the directions was 3:3 (vertical:oblique). They were all competely healed although there were three atrophy, four hyperesthesia, and one nail deformity. CONCLUSION: Finger injury by green onion cutting machine is a unique pattern of laceration with various accompanied injuries. It may look like a severe form of injury, but in most cases have relatively favorable progress. We have to perform careful examination of accompanied injuries and carry out the proper management. First and foremost, the user especially in the middle aged women should be warned to be careful in handling this risky machine.
Atrophy
;
Female
;
Finger Injuries
;
Fingers
;
Follow-Up Studies
;
Glycosaminoglycans
;
Hand
;
Hand Injuries
;
Handling (Psychology)
;
Humans
;
Hyperesthesia
;
Ischemia
;
Lacerations
;
Middle Aged
;
Nails
;
Onions
;
Sutures
;
Tendons
;
Transplants
6.A clinical study of breast cancer.
Dong Young NOH ; Deuk Ho CHA ; Jae Won JO ; Young Jin SONG ; Oh Jung KWON ; In Kyu HONG ; Kuk Jin CHOE ; Jin Pok KIM
Journal of the Korean Cancer Association 1991;23(2):410-417
No abstract available.
Breast Neoplasms*
;
Breast*
7.The Discriminating Ability of a Prognosis According to the TNM, Okuda, CLIP, JIS, and BCLC Staging Systems for Hepatocellular Carcinoma.
Hye Young KOO ; Sung Won KWON ; Hwa Young LEE ; Sung Kyu HWANG ; Kyu Sung LIM ; Man Deuk KIM
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2010;14(1):1-9
PURPOSE: There is yet no ideal single staging system for hepatocellular carcinoma (HCC). The aim of this study was to analyze HCC survival times according to the TNM, Okuda, CLIP, JIS, and BCLC staging systems and their prognostic discrimination ability. METHODS: A retrospective analysis of medical records and statistical data from the Korean statistical information service was done for HCC patients diagnosed at Bundang CHA hospital between June, 1992 and February, 2009. RESULTS: During follow-up, 121 (72%) of 168 people died and 1, 3 and 5 year overall survival rates were, respectively, 58%, 35% and 25%. In the analysis of discriminative ability of each staging system, the CLIP staging system showed the highest LR chi-square value, and the lowest AIC value (p<0.05). Therefore, the CLIP staging system appears to be superior to the other systems. CONCLUSION: Of the 5 staging systems in this study, the CLIP staging system was superior to the other systems, but the results of many other studies from different countries have varied. It is necessary to establish the staging system suitable for each country's actual circumstances.
Carcinoma, Hepatocellular
;
Discrimination (Psychology)
;
Follow-Up Studies
;
Humans
;
Information Services
;
Medical Records
;
Prognosis
;
Retrospective Studies
;
Survival Analysis
;
Survival Rate
8.A Case of Forearm Muscle Herniation after Radial Forearm Sensory Tendocutaneous Free Flap.
Paik Kwon LEE ; Min Cheol KIM ; Young Joon JUN ; Deuk Young OH ; Jong Won RHIE ; Sang Tae AHN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2008;35(2):205-207
PURPOSE: Although muscle hernia has been well described in the lower-extremity, muscle hernias in the upper extremity are extremely rare. As with lower extremity muscle hernias, the forearm muscle hernia may result from forced exertion of strenuous activity or following blunt trauma. The objective of this paper is to report an extraordinary case of forearm muscle hernia after radial forearm sensory tendocutaneous free flap with references. METHODS: A 58-year-old male patient received wide excision and radical neck dissection and lower lip reconstruction with radial forearm sensory tendocutaneous free flap for squamous cell cancer on the lower lip. 16 weeks after the operation, he complained of protruding mass on the forearm and the size was increasing. In postoperative 18 weeks, MRI showed herniation of flexor digitorum superficialis. For unaesthetic cause and preventing progress, the authors performed direct fascial closure and Mesh graft. RESULTS: In 12 months after the surgery there was no recurrence and the patient remained symptom-free. CONCLUSION: Pain on extremity exertion and unaesthetic buldge of forearm due to forearm muscle hernia were the primary indications for surgery which consist of direct closure, fasciotomy, fascia lata onlay graft, fascia lata inlay graft, etc. The authors experienced uncommon forearm muscle hernia after radial forearm free flap and satisfying result of treatment.
Extremities
;
Fascia Lata
;
Forearm
;
Free Tissue Flaps
;
Hernia
;
Humans
;
Inlays
;
Lip
;
Lower Extremity
;
Male
;
Middle Aged
;
Muscles
;
Neck Dissection
;
Neoplasms, Squamous Cell
;
Recurrence
;
Transplants
;
Upper Extremity
9.Modified Three-Square-Flap for Moderate to Minor Syndactyly.
Byung Chul SEO ; Deuk Young OH ; Paik Kwon LEE ; Jong Won RHIE ; Sang Tae AHN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(5):655-658
PURPOSE: The main goals of correcting syndactyly of the hand are to form normal web appearance and to prevent motor dysfunction. We modified the original three-square-flap to improve interdigital web space and to reduce the wound healing problem due to tension. METHODS: From July 2005 to February 2006, three cases of moderate to minor syndactyly were treated using modified three-square-flap. These flaps were made in such as way that the A flap from dorsal side, the B flap from the interdigital surface, and the C flap from the volar side. We modified the design of dorsal A flap as a hourglass shape instead of square shape to make normal hourglass shaped interdigital web and to reduce the tension of closure with other two flaps(B and C flap). The B and C flap were made as square shape. RESULTS: During 4 to 10 months follow-up period, acceptable esthetic results were obtained without any specific complication, using our modification of the three-square-flap. CONCLUSION: Our method showed more satisfactory web appearance and was safe to use even in the cases of syndactyly secondary to burns and post- traumatic scars because of excellent blood circulation.
Blood Circulation
;
Burns
;
Cicatrix
;
Follow-Up Studies
;
Hand
;
Syndactyly*
;
Wound Healing
10.Vulvoperineal Reconstruction Using Various Fasciocutaneous Flaps.
Paik Kwon LEE ; Moon Seop CHOI ; Deuk Young OH ; Jong Won RHIE ; Sang Tae AHN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2004;31(4):479-484
The reconstruction after radical vulvectomy presents a difficult challenge. Ideal flap for vulvoperineal reconstruction has thin character, constant vascular supply, and presents concealed scar after reconstruction. Various flaps are used for reconstruction of the vulvar area, have their own advantages and disadvantages. The authors performed 15 vulvoperineal reconstructions using three kinds of different 28 fasciocutaneous flaps. Gluteal fold fasciocutaneous island flap seems like labia major and remains concealed donor scar along the gluteal fold. But secondary debulking procedure is sometimes required. Vulvoperineal V-Y advancement fasciocutaneous flap is thin, reliable, easily elevated, and matches with regional skin quality, but donor site scar is conspicuous on medial thigh. Gluteal fold V-Y advancement fasciocutaneous flap is also reliable, easily elevated, and matches with regional skin quality with thin flap and concealed donor scar on gluteal fold. Also, it can be advanced even a long distance. Through our experiences, these flaps are very useful for vulvar reconstruction, but in the aspect of donor site scar, thickness, and degree of advancement, gluteal fold V-Y advancement fasciocutaneous flap is superior to the other two patterns for the reconstruction of the large sized vulvoperineal defect.
Cicatrix
;
Humans
;
Skin
;
Thigh
;
Tissue Donors