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Morphological Analysis of the Sinus Lateral Wall Using Cone-Beam Computed Tomography (콘빔형 전산화단층영상을 이용한 상악동 측벽의 형태학적 분석)

  • An, Seo-Young;Kim, Yong-Gun
    • Journal of Dental Rehabilitation and Applied Science
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    • v.28 no.4
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    • pp.349-357
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    • 2012
  • The purpose of this study was to measure the thickness of the sinus lateral wall using cone-beam computed tomography (CBCT), and to find the most suitable vertical position for lateral window opening prior to sinus elevation. Fifty three patients requiring sinus elevation had CBCT scans acquired by CB MercuRay (Hitachi, Medico, Tokyo, Japan) from July, 2010 to June, 2012. The thickness of the sinus lateral wall was measured according to its vertical position against the sinus inferior border (SIB), and its mean was calculated through two repeated measurements. The thickness of the sinus lateral wall was more than 2 mm at 2 mm above the sinus inferior border (SIB+2), however, it was less than 2 mm at 3 mm above the sinus inferior border (SIB+3). In conclusion, it is recommended that the inferior border of lateral wall window be made 3 mm above the sinus inferior border during sinus elevation using the lateral approach considering the thickness of the sinus lateral wall.

Inferior Capsular Shift Procedure using Splitting Subscapularis and Capsule for Instability of the Shoulder (견관절 불안정성의 견갑하근 및 관절 낭 수평 분할을 이용한 하방 관절 낭 이동술)

  • Park Jin-Young;Lim Soo-Taek;Yoo Moon-Jib;Lyu Suk-Joo
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.1 no.1
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    • pp.102-107
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    • 2002
  • Purpose: The aim of this retrospective study were to report the short-term results of inferior capsular shift procedure using splitting subscapularis and capsule for the patients who had shoulder instability and were apt to recur after arthroscopic stabilization procedure. Materials & Methods : Fifteen cases of instability of the shoulder were included with an average follow-up of 2 years (range: 1$\~$3 years). There were 13 men and 2 women with an average age of 27years. Multidirectional instability was found in 4 cases, voluntary instability in 3 cases, bony Bankarte lesion in 2 cases and 6 cases were contact sportmen. Thirteen shoulders underwent the inferior capsular shifts and Bankart repairs and 2 shoulders without Bankart lesion underwent the inferior capsular shift only. Average 19 mm of shift (range: 10$\~$25 mm) was done. Results : Fourteen patients showed good and excellent results with one subluxation and one positive apprehension test. Postoperative ranges of motions did not change in forward elevation, external rotation at side and external rotation at 90$^{\circ}$ abduction (p>0.05). Conclusion : Inferior capsular shift procedure using splitting subscapularis and capsule can be helpful in shoulder instability patients who were high-risk group of recurrence with arthroscopic procedure.

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VIP IMMUNOREACTIVITY IN THE RAT TRIGEMINAL GANGLION AFTER INFERIOR ALVEOLAR NERVE AXOTOMY (하치조신경 절단 후 흰쥐 삼차신경절에서 VIP-IR의 변화)

  • Kim, Heung-Joong;Park, Joo-Cheol;Kim, Hyun-Sub;Moon, Joo-Hoon
    • Restorative Dentistry and Endodontics
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    • v.25 no.2
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    • pp.225-234
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    • 2000
  • The purpose of this study was to investigate the distribution and fluorescene intensity of vasoactive intestinal polypeptide(VIP) immunoreactive cells in rat trigeminal ganglion after inferior alveolar nerve axotomy. The animals were divided into normal and two experimental groups. The experimental animals were sacrificed at 14th and 28th day after inferior alveolar nerve axotomy. The trigeminal ganglion was removed and immersed in the 4% paraformaldehyde-0.2% picric acid in 0.1M phosphate buffer. Serial frozon sections about $16{\mu}m$ in thickness were cut with a cryostat. The immunofluorescence staining was performed. The rabbit anti-VIP(1 : 8,000) was used as primary antibody and fluorescene isothiocynate(FITC)-conjugated anti-rabbit IgG(1 : 80) as secondary antibody. The slides were observed under confocal laser scanning microscope. Three-dimensional images were constructed from 9 serial images(each $1{\mu}m$ in thickness) made by automatic optical sectioning. Unprocessed optical sections were obtained and stored on a optical disk. Color picture were printed by a video copy processor. The results were as follows; 1. The appearance of VIP immunoreactive cells in the mandibular part of trigeminal ganglion was 8.79${\pm}$1.99% in normal group and 39.16${\pm}$5.62% in 14 days, 16.25${\pm}$2.39% in 28 days after inferior alveolar nerve axotomy groups. 2. The relative fluorescence intensity of VIP immunoreactive cell bodies in the mandibular part of trigeminal ganglion was 134.40${\pm}$10.39 in normal group and 192.88${\pm}$14.06 in 14 days, 143.10${\pm}$5.02 in 28 days after nerve axotomy groups. Therefore, the relative fluorescence intensity of 14 days after nerve axotomy group was 43.3% higher than intensity of normal group. 3. In optical single section analysis of VIP immunoreactive cell bodies, white cell bodies(moderate fluorescence intensity) were the most abundant in normal and 28 days after nerve axotomy groups. Whereas, in 14 days after nerve axotomy group, red cell bodies(high fluorescence intensity) were the most abundant. 4. In optical serial section analysis of VIP immunoreactive cell bodies, red cell bodies(high fluorescence intensity) were observed in a part of the 9 sections of normal and 24 days after nerve axotomy groups. Whereas, red cell bodies were observed in all of the 9 sections of 14 days after nerve axotomy group. 5. The results indicates that number and fluorescence intensity of VIP immunoreactive cells were increased in the mandibular part of trigeminal ganglion following inferior alveolar nerve axotomy.

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Superior and Inferior Limits on the Increments of Gaussian Processes

  • Park, Yong-Kab;Hwang, Kyo-Shin;Park, Soon-Kyu
    • Journal of the Korean Statistical Society
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    • v.26 no.1
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    • pp.57-74
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    • 1997
  • Csorgo-Revesz type theorems for Wiener process are developed to those for Gaussian process. In particular, some results of superior and inferior limits for the increments of a Gaussian process are differently obtained under mild conditions, via estimating probability inequalities on the suprema of a Gaussian process.

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Paralysis of Inferior Branch of Suprascapular Nerve by a Lipoma -A Case Report- (지방종에 의한 상견갑신경 하방분지의 마비 - 증례 보고 -)

  • Oh Joo Han;Gong Hyun Sik;Kim Hyun Ho
    • Clinics in Shoulder and Elbow
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    • v.7 no.2
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    • pp.103-107
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    • 2004
  • We present a case of suprascapular entrapment syndrome by a lipoma that compressed inferior branch of suprascapular nerve at the spinoglenoid notch and treated successfully by surgical excision.

Partial Anormalous Pulmonary Venous Return with Scimitar Sign (Scimitar 징후를 동반한 부분폐정맥환류이상 -1례보고-)

  • 권종범
    • Journal of Chest Surgery
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    • v.33 no.10
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    • pp.827-829
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    • 2000
  • We experienced a case of partial anomalous pulmonary venous return from righ lung to inferior vena cava, which combined with Scimitar sign in 18 years old female patient. Diagnostic procedures were simple chest x-ray chest CT, and cardiac catheterization. We redirected the anomalous venous flow from inferior vena cava to left atrium through the intracardiac tunnel which was made with autologous pericardium. Postoperative course was not eventful.

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Implant Placement Using Various Surgical Techniques: Case Report

  • Lee, Ji-Young;Kim, Young-Kyun
    • Journal of Korean Dental Science
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    • v.3 no.2
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    • pp.50-59
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    • 2010
  • Implant placement is frequently complicated and challenging because of the poor quality and inadequate height of bone. Clinicians should consider various surgical procedures to overcome the problems. We report a case with various surgical procedures used such as inferior alveolar nerve repositioning, sinus bone graft, and autogenous block bone graft using the coronoid process and ramus to overcome severe vertical and horizontal alveolar bone atrophy.

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Surgical Reconstruction of Lateral Capsule-ligament Complex with Reinforcement by Periosteal Flap of Distal Fibula and Inferior Extensor Retinaculum for Chronic Lateral Ankle Instability (만성 족관절 불안정성에서 하신전 지지대 및 원위 비골 골막을 이용한 해부학적 재건술)

  • Kim, Young-Chang;Gwak, Heui-Chul;Jung, Kyung-Chil;Choi, Jang-Seok;Seo, Jin-Hyuk
    • Journal of Korean Foot and Ankle Society
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    • v.11 no.2
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    • pp.204-208
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    • 2007
  • Purpose: To evaluate the results of surgical reconstruction of lateral capsule-ligament complex with reinforcement by periosteal flap of distal fibula and inferior extensor retinaculum for chronic lateral ankle instability. Materials and Methods: From April 2003 to August 2006, 62 patients with chronic lateral ankle instability were operated. There were 38 males and 24 females with a mean age of 39.6 years (range, $18{\sim}61$ years). Mean follow-up period was 32 months (range, $10{\sim}48$ months). All patients were checked with preoperative ankle anteroposterior and lateral view, stress anterior drawer and varus test using Telos device. The clinical results were graded according to the VAS and AOFAS scale. Results: VAS score improved from preoperative 8.2 points to 3.1 points. There were 38 patients who were excellent (above 90 points), 18 who were good (between 76 and 90 points), 5 who were fair (between 60 and 75 points), and 1 who was poor (below 60 points) according to the AOFAS ankle and hindfoot scale. The excellent and good results amounted to 90.3%. Conclusion: Surgical reconstruction of lateral capsule-ligament complex with reinforcement by periosteal flap of distal fibula and inferior extensor retinaculum is believed to be a effective method for chronic lateral ankle instability.

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An assessment of maxillary sinus and alveolar bone in cross-sectional linear tomogram of panorama (파노라마촬영장치의 협설선형단층상에 의한 상악동과 치조골 평가)

  • Kim Jae-Duk
    • Imaging Science in Dentistry
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    • v.33 no.3
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    • pp.137-141
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    • 2003
  • Purpose: To evaluate the precision of measurements taken of dental implants in bucco-lingually sectioned views of the maxilla by linear tomograms of the panorama and to assess the visibility of the inferior wall of the maxillary sinus. Materials and Methods : Eighty sites prepared with implants of gutta percha cone in the sockets of the upper premolars and molars of 10 dry skulls were radiographically examined using linear tomograms of panorama, and scanned coronally and axially by computed tomography. The differences in mm between the measurements in bucco-lingually sectioned images of maxillary alveolar bone and the true length and width of the implanted gutta percha cones were compared as mean values (mean) and standard deviations (SD) for each radiographic technique. Linear tomography of panorama was compared with computed tomography for visualization of the relationship between the inferior wall of maxillary sinus and the end of each implant. Results: The deviations between the actual implant length and the measured values taken from the linear tomograms (0.44±0.39 mm) was significantly less than the measured values from the multiplanar reconstructed images of the axially scanned computed tomogram (1.21 ± 0.90 mm). There was statistically significant difference (p < 0.05) between two techniques in the differences between the measurements and true implant length. The relationship of the inferior border of maxillary sinus with end of implant was worse identified with the linear tomogram of panorama (68%) than the multiplanar reconstructed image of axially scanned computed tomogram (99%). Conclusion: We could not find any differences in the accuracy of length measurement between the linear tomogram of panorama and computed tomogram, but computed tomogram allowed for a better visualization of the inferior wall of the maxillary sinus than the linear tomogram.

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The Superficial Inferior Epigastric Artery Flap and its Relevant Vascular Anatomy in Korean Women

  • Kim, Byung Jun;Choi, Jun Ho;Kim, Tae Hoon;Jin, Ung Sik;Minn, Kyung Won;Chang, Hak
    • Archives of Plastic Surgery
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    • v.41 no.6
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    • pp.702-708
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    • 2014
  • Background Lower abdominal soft tissue transfer is the standard procedure for breast reconstruction. However, abdominal wall weakness and herniation commonly occur postoperatively at the donor site. To reduce the morbidities of the donor site, the superficial inferior epigastric artery (SIEA) flap was introduced, but inconsistent anatomy of the SIEA has reduced its utility. In the present study, the anatomy of the superficial inferior epigastric vessels in Korean women was determined with regards to breast reconstructive surgery. Methods The vascular anatomies of the SIEA and superficial inferior epigastric vein (SIEV) were evaluated on 32 breast cancer patients receiving free transverse rectus abdominis musculocutaneous flap reconstruction after mastectomy. The existence, pulsation, location, external diameter, and depth of the SIEA and SIEV were measured at the lower abdominal incision level. Results SIEA and SIEV were present in 48/64 (75.00%) and 63/64 (98.44%) hemi-abdomens, respectively. Pulsation of the SIEA was found in 44/48 (91.67%) cases. The mean locations of SIEA and SIEV were +5.79 (${\pm}12.87$) mm, and -8.14 (${\pm}15.24$) mm from the midpoint between the anterior superior iliac spine and symphysis pubis, respectively. The mean external diameters of SIEA and SIEV were 1.20 (${\pm}0.39$) mm and 1.37 (${\pm}0.33$) mm, and they were found at a mean depth of 9.75 (${\pm}2.67$) mm and 8.33 (${\pm}2.65$) mm, respectively. Conclusions The SIEA was absent in 25% of Korean women and had a relatively small caliber. Therefore, careful preoperative assessment of the lower abdominal vasculature is required to achieve successful breast reconstruction using SIEA flaps.