1.The Treatment of Old Unreduced Dislocation of Shoulders: A Report of two cases
Myung Shik KIM ; Byung Duk PARK ; Ki Hong CHOI
The Journal of the Korean Orthopaedic Association 1971;6(3):269-272
Two cases of old unreduced dislocation of shoulder are reported. One was the posterior dislocation for six months with malunited fracture of humeral shaft in thirty degree lateral angulation. Her shoulder and arm aches with limitation of motion remaining only ten degrees in every direction but abduction in thirty degrees, The malunion of humeral shaft and shoulder were reduced surgically in result of eighty degrees abduction, seventy degrees flexion, sixty degrees extension and twenty degrees of external rotation with free of pain. Another case was an anterior dislocation for one year. Her range of shoulder motions are almost normal degree but brachial plaxus compression symptoms. Open reduction in practically Putti-Platt procedure was performed. She became completely free of brachial plexus symptom and ranges of shoulder motion are normal except about fifteen degrees less external rotation than preoperative condition. The surgical indication and the result of treatment were discussed for the the neglected cases of old unreduced dislocation of the shoulder.
Arm
;
Brachial Plexus
;
Dislocations
;
Fractures, Malunited
;
Shoulder
3.The effect of electrical stimulation of recurrent nerve on vocal cord position.
Eun Chang CHOI ; Hong Shik CHOI ; Young Mo KIM ; Un Kyo CHUNG ; Yong Jae PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(5):985-990
No abstract available.
Electric Stimulation*
;
Vocal Cords*
4.Tracheal homografts in the canine.
Hong Shik CHOI ; Eun Chang CHOI ; Kwang Moon KIM ; Nam Hoon CHO ; Kee Hyun PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(2):304-315
No abstract available.
Allografts*
5.Function of the interarytenoid(IA) muscle in phonation: in vivo laryngeal model.
Hong Shik CHOI ; Ming YE ; Gerald S BERKE
Yonsei Medical Journal 1995;36(1):58-67
Thyroarytenoid(TA), lateral cricoarytenoid(LCA), and IA muscles are referred to as the adductors of the vocal fold. The TA is known to shorten the vocal folds and to adduct the membranous vocal fold, and the LCA adducts the inter-vocal process region and IA adducts the posterior commissure. Even though IA has an important role for the positioning of the vocal folds during respiration and phonation together with the action of the posterior cricoarytenoid muscle, little is known about the effect of IA on voice parameters during phonation. An in vivo canine model was used in five mongrel dogs to examine the role of the IA muscle in controlling phonation. In two out of five dogs, sound could not be elicited without stimulating the IA branches of the recurrent laryngeal nerves. When the IA was dynamically and statistically stimulated, subglottic pressure, vocal intensity and fundamental frequency were increased. However, open quotient was not changed markedly. These results suggest that the IA affects the voice parameters mainly by controlling subglottic pressure during phonation.
Animal
;
Dogs
;
Electric Stimulation
;
Laryngeal Muscles/*physiology
;
Laryngoscopy
;
Models, Biological
;
Phonation/*physiology
;
Videotape Recording
6.A clinical study of the intracordal cyst.
Hong Shik CHOI ; Kwang Moon KIM ; Han Kyu LEE ; Se Heon KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(1):116-121
No abstract available.
7.Antibacterial Effect of Polyphosphates on Porphyromonas gingivalis.
Eu Gene CHOI ; Hong Yeoul KIM ; Jin Yong LEE ; In Shik CHOI ; Byung Lae PARK ; Je Won SHIN ; Yeong Chul CHOI
Journal of the Korean Society for Microbiology 1999;34(3):285-301
Porphyromonas gingivalis is strongly implicated in the pathogenesis of adult periodontitis, the major cause of tooth loss in adults. Use of an antibacterial agent controlling P. gingivalis as a periodontal therapeutic agent has been rationalized. The present study was performed to observe the antibacterial effect of inorganic polyphosphates (polyP) on P. gingivalis. P. gingivalis 2561 was grown in half-strength brain-heart infusion broth containing hemin and vitamin K with or without polyP. Minimal inhibitory concentration (MIC) of polyP with various chain lengths was determined by measuring the absorbance of the grown cells at 540 nm. MIC of polyP for the bacterium was determined to be 0.05%. The effect of polyP with a chain length of 75 (polyP 75) was further examined. PolyP 75 added to the growing culture of P. gingivalis at its exponential phase was as effective in inhibiting the growth of P. gingivalis as polyP 75 added at the very beginning of the culture. More than 99% of the cells lost their viability determined by viable cell count when polyP 75 was added to the culture of growing P. gingivalis at the concentration of 0.06%, suggesting that polyP 75 has a bactericidal effect on the bacterium. Intracellular nucleotide release from the cells was increased by approx. 20% in the presence of polyP 75 but was not reversed by the addition of divalent cations like Ca++ and Mg++. Under the transmission electron microscope, only a small number of the growing P. gingivalis cells were actually lysed. However, the majority of the cells appeared to be atypical in their shape, demonstrating accumulation of highly electron-dense granules and bodies of condensed nucleic acid-like material in the cytoplasm. In the presence of polyP 75, the protein profile of P. gingivalis was changed as determined by SDS-polyacrylamide gel electrophoresis and immunoblot, and the proteolytic activity of the bacterium demostrated on the zymograms was decreased. The overall results suggest that polyP have a strong bactericidal activity against P. gingivalis in which lysis in relation to chelation may not play the major role but unknown mechanism that possibly affects the viability of the bacterium may be involved. PolyP may be used as an agent for prevention and treatment of periodontitis.
Adult
;
Cations, Divalent
;
Cell Count
;
Chronic Periodontitis
;
Cytoplasm
;
Electrophoresis
;
Hemin
;
Humans
;
Periodontitis
;
Polyphosphates*
;
Polyps
;
Porphyromonas gingivalis*
;
Porphyromonas*
;
Tooth Loss
;
Vitamin K
8.In vitro laryngeal phonating model.
Hong Shik CHOI ; Gill Ryoung KIM ; Young Mo KIM ; Yong Jae PARK ; Hong Seok SEO ; Young Chan KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(3):567-575
No abstract available.
9.Clinical Observation on Ruptured Aortic Sinus of Valsalva.
Kyung Pyo HONG ; Myung Mook LEE ; Yun Shik CHOI ; Jeongdon SEO ; Young Woo LEE ; Yung Kyoon LEE ; Man Chung HAN
Korean Circulation Journal 1980;10(1):57-63
A Clinical observation was made on five patients with ruptured aortic sinus of Valsalva who visited Seoul National university hospital during the period of May, 1975~Jan., 1980. 1. Age distribution was from 19 to 32 years and four patients were male and the rest one case was female. 2. Chief complaints on admission were dyspnea in 3 cases and chest pain in 2 cases. Onset of symptoms was abrupt in 4 cases. 3. Continuous murmur was heard at third and fourth intercostal space along left sternal border with thrill in all cases. 4. Cardiac catheterization and aortography showed regurgitant flow from aorta to right ventricle in all cases. 5. Operation was done successfully in 3 cases, of which aortic insufficiency was persistent in one case.
Age Distribution
;
Aorta
;
Aortography
;
Cardiac Catheterization
;
Cardiac Catheters
;
Chest Pain
;
Dyspnea
;
Female
;
Heart Ventricles
;
Humans
;
Male
;
Seoul
;
Sinus of Valsalva*
10.A Clinical Study on Pentoxifylline (Trental(R)) in the Treatment of Cerebrovascular Disease.
Myung Mook LEE ; Kyung Pyo HONG ; Byung Heui OH ; Yun Shik CHOI ; Jeongdon SEO ; Young Woo LEE
Korean Circulation Journal 1980;10(1):51-55
Pentoxifylline (Trental(R)) is a drug which blocks pathophysiologic process of cerebrovascular disease by inhibiting platelet aggregation, improving cerebral microcirculation preventing development of cerebral edema. In an attempt to evaluate the effect of pentoxifylline for the treatment of 25 patients (male 17 cases, female 8 cases) with cerebrovasculaar disease, we administered pentoxifylline 600mg daily in devided dosage for 1 to 7 months. Most of them were patients with cerebral thrombosis (52%), cerebral embolism (24%), cerebral hemorrhage (12%) and transient ischemic attack (12%). Clinical effects were evaluated at least 1 month later by the criteria using scoring method of serverity of symptoms. In summary, definite effect was found in 15 cases (60%), mild effect in 6 cases (24%) and no efect or aggravation in 4 cases (16%), especially in patients with cerebral hemorrhage. During treatment there was no significant side effect except mild elevation of serum creatinine in one case who was associated with chronic renal failure.
Brain Edema
;
Cerebral Hemorrhage
;
Creatinine
;
Female
;
Humans
;
Intracranial Embolism
;
Intracranial Thrombosis
;
Ischemic Attack, Transient
;
Kidney Failure, Chronic
;
Microcirculation
;
Pentoxifylline*
;
Platelet Aggregation
;
Research Design