In 1974, bipolar endoprosthesis was first introduced by Bateman & Giliberty. It has theoretical advantages including minimizing acetabular wear, possible reduction of incidence of stem loosening, lessening of dislocation and easy revision procedure. Various methods for the treatment of fracture of the femur neck have been developed & performed, but it is still called “the unsolved fracture” in certain situation. But the role of it as primary treatment of fracture of the femur neck continues to be controversial. Current clinical results encourage its continued use and expansion of indication. Authors reviewed and analysed 21 cases of bicentric endoprosthesis and 1 case of Giliberty endoprosthesis those have been operated at the Department of Orthopaedic Surgery, National Medical Center from 1981 to 1983. Following results were obtained, l. According to disorder distribution, 14 cases were neglected fracture of femur neck, 2 old fracture, 1 idiopathic femoral head necrosis and 2 avascular necrosis & 1 non-union complicated by femoral neck fracture. 2. Among 20 cases, 8 cases were operated within 1/2 1 month after injury and 6 cases within 1 3months 3. Harris lateral appmach was used in 16 cases (80%) and Modified Gibson approach in 4 cases (20%). There were no significant differences in morbidity during operation and postoperative complication. 4. We used femoral stems those head diameter was 22 and 32mm(Charnley & Miiller type) and head pieces those diameter was 48-51 mm in male and 44–48 mm in Ifemale. 5. 3 cases were stiff in inner bearing without acetabular erosion. 6. In 6 cases more than 2 years followup 1 degree CE angle of Wiberg was increased in 2 cases of youngage respectively without associated hip joint pain. 7. Although inclination of head piece was vertical in 8 cases, fracture and dislocation were not found. 8. The circumference of head piece and opposite femoral head was measured and compared. There were 12 cases (mean 12.6 mm) that of head piece larger than opposite femoral head and 3 cases smaller than opposite femoral head. 9. There was 4 cases of complication (3 patients) and still no reoperation and revision converted to T.H.R. 10. With regard to average 18 months of follow-up, 7 cases of 81–90 Harris hip-rating score, 6 of 91–100, 4 of 71–80 and 3 of 61–70.
Acetabulum ; Dislocations ; Femoral Neck Fractures ; Femur ; Femur Neck ; Follow-Up Studies ; Head ; Hip Joint ; Humans ; Incidence ; Male ; Neck ; Necrosis ; Postoperative Complications ; Reoperation

No abstract available.
Mass Screening* ; Prospective Studies*

We performed treat the 41 eyes of rhegmatogenous retinal detachment to scleral encircling.The causes of retinal detachment were unidentifiable breaks (10 eyes), high myopia (8 eyes), pseudophakia or aphakia (8 eyes), giant tear (8 eyes)and multiple holes (7 eyes). Overall the reattachment ratewas 80.5% (33/41 eyes). The anatomic success rate was relatively high (85.7%)in eyes with giant tear, high myopia and multiple hole but relatively low in eyes with breaks unidentified (60%) or pseudophakic and aphakic retinal detachment (75%). Among those 33 eyes, functional success was achived in 27 eyes (81.8%). We achieved higher functional success rate in pseudophakia or aphakia, multiple hole and high myopia (over 83.3%) but low functional success rate in unidentifiable breaks (66.7%)and giant tear (71.4%). Our results suggest other treatments such as pars plana vitrectomy should be considered to treat eyes with retinal detachment of breaks unidentified, although scleral encircling has been used conventially.
Aphakia ; Myopia ; Pseudophakia ; Retinal Detachment* ; Retinaldehyde* ; Vitrectomy

No abstract available.
Ganglioglioma*

No abstract available.

Neurogenic tumors of the brachial plexus region are relatively rare. We report a recent experience of schwannoma of the right brachial plexus in the inferior trunk, which was successfully treated by microsurgical resection. A 38-year- old man presented a dysesthetic pain in the supraclavicular area and the right forearm of C6, 7 dermatome. Rubbery hard mass was palpated in the right supraclavicular area and magnetic resonance imaging showed a well circumscribed, well enhanced ovoid mass with cystic degeneration on the right brachial plexus portion. The patient underwent complete removal of the mass through the anterior cervicothoracic (modified Dartevelle) approach. At the postoperative 3 months, there is no neurologic deficit.
Brachial Plexus* ; Forearm ; Humans ; Magnetic Resonance Imaging ; Neurilemmoma* ; Neurologic Manifestations

This study evaluated the influence of application time of self-etching primers on microtensile bond strength (microTBS) to dentin using three self-etching primer adhesive systems. Dentin surfaces were exposed from forty-eight human molars. They were conditioned with three self-etching primers (Clearfil SE Bond [SE], Unifil Bond [UF], Tyrian SPE + One Step Plus [TY]) and different primining times (10s, 20s, 30s and 40s). Composite resins were bonded to dentin surfaces and specimens were made. microTBS was tested and statistically compared using by one-way ANOVA and Tukey's Test The results of this study presented that priming time for 10s in SE and UF groups and for 30s and 40s in TY group was highly decreased microTBS to dentin.
Adhesives ; Composite Resins ; Dentin* ; Humans ; Molar

BACKGROUND: We have studied the 67Ga SPECT to determine the activity of pulmonary tuberculosis, especially in patients with minimal extent of the disease on chest radiographs. Because active minimal pulmonary tuberculosis is sometimes difficult to diagnose by means of initial chest X-ray, sputum examination and 67Ga planar imaging, we compared 67Ga planar imaging with SPECT to evaluate minimal pulmonary tuberculosis activity. METHODS: 67Ga planar imagings and SPECTs of 69 patients suspected of minimal pulmonary tuberculosis by the initial chest X-ray were performed and compared to each other. Active pulmonary tuberculosis was defined by a positive AFB smear and/or culture in the sputum and changes shown on the serial chest X-ray findings. RESULTS: 1)67Ga planar imaging imagings showed positive uptakes in 24 patients and no uptakes in 13 patients, which confirms active pulmonary tuberculosis. But SPECT imagings showed positive uptakes in 25 patients and no uptakes in 12 patients. 2) Patients confirmed with inactive pulmonary tuberculosis showed no up-take on 67Ga planar imaging. Only one of the 32 patients confirmed as having inactive pulmonary tuberculosis showed positive uptake on 67Ga SPECT imaging. CONCLUSIONS: According to the results of our study, 67Ga planar imaging and SPECT are both sensitive in detecting the activity of minimal pulmonary tuberculosis. The difference between the two methods is not statistically significant, and the negative predictive value of the 67Ga SPECT is not higher than that of 67Ga planar imaging.
Humans ; Radiography, Thoracic ; Sputum ; Thorax ; Tomography, Emission-Computed, Single-Photon* ; Tuberculosis, Pulmonary*

The purpose of this study was to compare the microhardness and the fluoride content of enamel and dentin around fluoride- or non fluoride-containing restorations. Forty extracted human teeth were used and prepared cervical cavities on proximal surface. Experimental teeth were divided into five groups. Group 1 : Prime & Bond NT and Z100, Group 2 : Prime & Bond NT and F2000, Group 3 : Scotchbond Multi-Purpose and Z100, Group 4 : Scothcbond Multi-purpose and F2000, Group 5 : Fuji II LC. The cavities were filled with dentin adhesives and restorative materials. After each tooth was bisected, one half was tested microhardness and the other half was analyzed the fluoride at the enamel and dentin by an EPMA-WDX device. The results were as follows: 1. There was no statistical difference among the microhardness of enamel surface in all group. 2. The microhardness at dentin of 100 microm point in Group 2 and 20 microm point in Group 4 was lower than that of normal dentin (p>0.05). 3. There was no statistical difference among the fluoride content of enamel surface in all group. 4. The fluoride content at the dentin of 30 microm point in Group 2 and 5 were higher than those at 100 microm and 200 microm point in Group 2 and normal dentin (p<0.05). 5. At the dentin of 30 microm point, Group 2 showed higher fluoride content than Group 1 and 3, and Group 5 showed higher fluoride content than other groups.
Adhesives ; Dental Enamel ; Dentin ; Fluorides* ; Humans ; Tooth*

BACKGROUND AND OBJECTIVES: The vestibuloautonomic reflex controls respiration and blood pressure during locomotion. The purpose of this study was to investigate the role of the peripheral vestibular receptor in the control of blood pressure in sinoaortic denervated (SAD) rats. MATERIALS AND METHODS: The baroreceptor reflex was removed by SAD in labyrinthectomized rats. The expression of c-Fos protein in the vestibular nuclear complex, and other nuclei related to control of blood pressure, was measured following the induction of acute hypotension using sodium nitroprusside (SNP). RESULTS: The SNP induced acute hypotension, in intact labyrinthine rats, increased the expression of c-Fos protein in the supraoptic nucleus, paraventricular nucleus, rostral ventrolateral medulla, solitary nucleus, and vestibular nuclear complex. The expression of c-Fos protein, following the SNP induced acute hypotension in the SAD rats, increased the expression of c-Fos protein in the paraventricular nucleus, rostral ventrolateral medulla, and medial and inferior vestibular nuclei. The acute hypotension induced by SNP in a unilateral labyrinthectomy, with SAD, increased the expression of c-Fos protein in the contralesional vestibular nuclear complex, but decreased its expression in the ipsilesional vestibular nuclear complex. The acute hypotension induced by SNP in a bilateral labyrinthectomy, with SAD, showed only slight expression of c-Fos protein in the bilateral vestibular nuclear complex. CONCLUSION: These results suggest that the acute hypotension induced by SNP activates the vestibular nuclear neurons by decreasing the blood flow in the peripheral vestibular receptors, and that these in turn modulate blood pressure through activation of the catecholaminergic nervous system and neuroendocrine reflex.
Animals ; Baroreflex ; Blood Pressure* ; Hypotension ; Locomotion ; Nervous System ; Neurons ; Nitroprusside ; Paraventricular Hypothalamic Nucleus ; Pressoreceptors ; Rats* ; Reflex ; Respiration ; Solitary Nucleus ; Supraoptic Nucleus ; Vestibular Nuclei