1.The Operative Treatment of Displaced Intra-articular Calcaneal Fracture with Injectable Calcium Sulfate (MIIG(TM)).
Seong Jun AHN ; Bu Hwan KIM ; Moo Ho SONG ; Seong Ho YOO ; Sang Hyok SEO
Journal of Korean Foot and Ankle Society 2007;11(2):221-225
PURPOSE: To evaluate the clinical results of operative treatment of the intra-articular calcaneal fracture with injectable calcium sulfate (MIIG(TM)). MATERIALS AND METHODS: Between March 2004 and October 2006, a total 19 intra-articular calcaneal fracture (16 patients) with a large bony defect that underwent operative treatment with plate fixation and injectable calcium sulfate (MIIG(TM)) with minimum follow-up of one year following. The mean age at time of surgery was 44.7 years (23 to 54). All of the cases were type 2 and 3 on the basis of Sanders classification. The lateral L shaped approach was used in all cases. Full weight bearing on the affected extremity was regained at an average 10 weeks postoperatively. RESULTS: The mean B?hler angle was improved from 2 degrees (-18.5~12.5 degrees) preoperatively to 23.8 degrees (12~37.5 degrees) and the angle at last follow-up was 22.5 degrees (11.5~37.5 degrees), showing about 0.3 degree decline compared to postoperative B?hler angle. Only two case of whitish leakage of graft material but other complication were none. CONCLUSION: MIIG(TM) augumentation of displaced intra-articular calcaneal fracture with large bone defect seems to bo useful method for initial stabilized and plate fixation.
Calcaneus
;
Calcium Sulfate*
;
Calcium*
;
Classification
;
Extremities
;
Follow-Up Studies
;
Intra-Articular Fractures
;
Transplants
;
Weight-Bearing
2.A Comparison of with and without in the Fixation of Distal Chevron Osteotomies for Hallux Valgus.
Seong Ho YOO ; Bu Whan KIM ; Moo Ho SONG ; Seong Jun AHN ; Sang Hyok SEO
Journal of Korean Foot and Ankle Society 2006;10(2):230-233
PURPOSE: The distal chevron osteotomy has gained popularity for the mild to moderate hallux valgus, but necessity of fixation is controversy. No fixation of distal chevron osteotomy cause instability, but fixation has problem which has pin site infection and irritability, extension of operation time, discomfort of rehabilitation. So, the author was going to analyse and compare with and without in the fixation of distal chevron osteotomy. MATERIALS AND METHODS: Between 2004 and 2005, a total 18 patients (20 feet) following with and without in fixation of distal chevron osteotomies. The fixation group (A) was performed for the treatment of 10 patients (10 feet) and no fixation group (B) was done to 8 patients (10 feet). RESULTS: On group A, the mean first MTP (metatarsophalangeal) angle corrected 17 degrees pre-operatively to average 29 degrees (range; 20-37 degrees) and the mean first IM (intermetatarsal) angle corrected 10 degrees pre-operatively to average 15 degrees (range; 9-18 degrees). On Group B, the mean first MTP angle corrected 16 degrees pre-operatively to average 29 degrees (range; 18-33 degrees) and the mean first IM angle corrected 7 degrees pre-operatively to average 13 degrees (range; 9-16 degrees) (P>0.05). Clinical results, based on AOFAS score showed an improvement in the overall results. CONCLUSIONS: Comparing the clinical and radiographic results of the distal chevron osteotomies no difference in with and without fixation of distal chevron osteotomies.
Hallux Valgus*
;
Hallux*
;
Humans
;
Osteotomy*
;
Rehabilitation
3.Comparison of conventional lateral cephalograms with corresponding CBCT radiographs.
Chang Seo PARK ; Jae Kyu PARK ; Huijun KIM ; Sang Sun HAN ; Ho Gul JEONG ; Hyok PARK
Imaging Science in Dentistry 2012;42(4):201-205
PURPOSE: This study was performed to assess the compatibility of cone beam computed tomography (CBCT) synthesized cephalograms with conventional cephalograms, and to find a method for obtaining normative values for three-dimensional (3D) assessments. MATERIALS AND METHODS: The sample group consisted of 10 adults with normal occlusion and well-balanced faces. They were imaged using conventional and CBCT cephalograms. The CBCT cephalograms were synthesized from the CBCT data using OnDemand 3D software. Twenty-one angular and 12 linear measurements from each imaging modality were compared and analyzed using paired-t test. RESULTS: The linear measurements between the two imaging modalities were not statistically different (p>0.05) except for the U1 to facial plane distance. The angular measurements between the two imaging modalities were not statistically different (p>0.05) with the exception of the gonial angle, ANB difference, and facial convexity. CONCLUSION: Two-dimensional cephalometric norms could be readily used for 3D quantitative assessment, if corrected for lateral cephalogram distortion.
Adult
;
Cephalometry
;
Cone-Beam Computed Tomography
;
Humans
4.Symptomatic Lateral Patellar Plica : A Case Report.
Moo Ho SONG ; Bu Hwan KIM ; Seong Jun AHN ; Seoung Ho YOO ; Sang Hyok SEO
The Journal of the Korean Orthopaedic Association 2006;41(6):1052-1055
The plica is a remnant of the synovial folds during the coalescence of three compartments of the knee at 8 weeks of fetal development. The plica are classified according to their corresponding anatomic sites of the knee, such as suprapatellar, medial patellar, infrapatellar and lateral patellar plica. The medial patellar plica is considered to be the one most likely to cause problems and has been well documented in the literature. However, there are very few reports of problems being caused by lateral plica. We encountered one case of pathologic lateral plica that was excised by arthroscopy. We report this case with a review of the relevant literature.
Arthroscopy
;
Fetal Development
;
Knee
5.Evaluation of the Beam Quality of Intraoral X-ray Equipments using Intraoral Standard Films.
Sang Sub LEE ; Hyok Rak KWON ; Woo Hyoun SIM ; Seung Hyoun OH ; Ji Youn LEE ; Kug Jin JEON ; Kee Deog KIM ; Chang Seo PARK
Korean Journal of Oral and Maxillofacial Radiology 2000;30(3):183-188
PURPOSE: This study was to evaluate the beam quality of intraoral X-ray equipments used at Yonsei University Dental Hospital(YUDH) using the half value layer(HVL) and the characteristic curve of intraoral standard X-ray film. MATERIALS AND METHODS: The study was done using the intraoral X-ray equipments used at each clinical department at YUDH. Aluminum filter was used to determine the HVL. Intraoral standard film was used to get the characteristic curve of each intraoral X-ray equipment. RESULTS: Most of the HVLs of intraoral X-ray equipments were higher than the least recommended thickness, but the REX 601 model used at the operative dentistry department and the X-707 model used at the pediatric dentistry department had HVLs lower than the recommended thickness. The slopes of the characteristic curves of films taken using the PANPAS 601 model and REX 601 model at operative dentistry department, the X-70S model of prosthodontic dentistry department, and the REX 601 model at the student clinic were relatively low. CONCLUSION: HVL and the characteristic curve of X-ray film can be used to evaluate the beam quality of intraoral X-ray equipment. In order to get the best X-ray films with the least radiation exposure to patients and best diagnostic information in clinical dentistry, X-ray equipment should be managed in the planned and organized fashion.
Aluminum
;
Dentistry
;
Dentistry, Operative
;
Humans
;
Pediatric Dentistry
;
Prosthodontics
;
X-Ray Film
6.Characteristics of a new cone beam computed tomography.
Chang Seo PARK ; Kee Deog KIM ; Hyok PARK ; Ho Gul JEONG ; Sang Chul LEE
Korean Journal of Oral and Maxillofacial Radiology 2007;37(4):205-209
PURPOSE: To determine the physical properties of a newly developed cone beam computed tomography (CBCT). MATERIALS AND METHODS: We measured and compared the imaging properties for the indirect-type flat panel detector (FPD) of a new CBCT and the single detector array (SDA) of conventional helical CT (CHCT). RESULTS: First, the modulation transfer function (MTF) of the CBCT were superior to those of the CHCT. Second, the noise power spectrum (NPS) of the CBCT were worse than those of the CHCT. Third, detective quantum efficiency (DQE) of the indirect-type CBCT were worse than those of the CHCT at lower spatial frequencies, but were better at higher spatial frequencies. Although the comparison of contrast-to-noise ratio (CNR) was estimated in the limited range of tube current, CNR of CBCT were worse than those of CHCT. CONCLUSION: This study shows that the indirect-type FPD system may be useful as a CBCT detector because of high resolution.
Cone-Beam Computed Tomography*
;
Noise
;
Tomography, Spiral Computed
7.Inflammatory myofibroblastic tumor: A case report.
Sang A EUN ; Hyok PARK ; In Ho CHA ; Hyun Sil KIM ; Ho Gul JEONG ; Kee Deog KIM ; Chang Seo PARK
Korean Journal of Oral and Maxillofacial Radiology 2006;36(3):169-175
The inflammatory myofibroblastic tumor (inflammatory pseudotumor) is a rarely occurring soft tissue lesion of unknown etiology. It can be of any location, but commonly it is found in lungs. It has been considered as a nonneoplastic reactive inflammatory lesion, but nowadays, confusion and dispute about its character is increasing due to its high recurrence rate and metastasis. We present a patient who had been diagnosed with an inflammatory pseudotumor in the right maxilla area, 1 year before visiting our hospital. After that, her pain and swelling did not resolved and she visit our hospital. On radiographic examination, aggressively infiltrative growth of the lesion with destruction of adjacent bony structure was noted. We found unusual aggressiveness of the inflammatory myofibroblastic tumor of the head and neck region. Because the typical behavior of the inflammatory myofibroblastic tumor is not defined yet, we recommend the surgical excision of the lesion and close follow-up.
Dissent and Disputes
;
Follow-Up Studies
;
Granuloma
;
Granuloma, Plasma Cell
;
Head
;
Humans
;
Lung
;
Maxilla
;
Maxillary Sinus
;
Myofibroblasts*
;
Neck
;
Neoplasm Metastasis
;
Plasma Cells
;
Recurrence
8.Effect of n-3 Polyunsaturated Fatty Acids on Regression of Coronary Atherosclerosis in Statin Treated Patients Undergoing Percutaneous Coronary Intervention.
Jinhee AHN ; Seo Kwang PARK ; Tae Sik PARK ; Jin Hee KIM ; Eunyoung YUN ; Sang Pil KIM ; Hye Won LEE ; Jun Hyok OH ; Jung Hyun CHOI ; Kwang Soo CHA ; Taek Jong HONG ; Sang Yeoup LEE ; Han Cheol LEE
Korean Circulation Journal 2016;46(4):481-489
BACKGROUND AND OBJECTIVES: Statins remain the mainstay of secondary coronary artery disease (CAD) prevention, but n-3 polyunsaturated fatty acids (ω-3 PUFA) display biological effects that may also reduce the risk of atherosclerosis and CAD. However, data on the possible antiatherosclerotic benefits of adding ω-3 PUFA to statin therapy are limited. This study aimed to investigate the potential additive effects of ω-3 PUFA on regression of atherosclerosis in CAD patients receiving statin therapy and stent implantation. SUBJECTS AND METHODS: Seventy-four CAD patients undergoing percutaneous coronary intervention (PCI) with stent implantation were enrolled, prescribed statins, and randomly assigned to two groups: n-3 group (ω-3 PUFA 3 g/day, n=38) or placebo group (placebo, n=36). All patients completed the study follow-up consisting of an intravascular ultrasound at baseline and at 12 months. RESULTS: There was no difference in the baseline characteristics and distribution of other medications. No significant differences were observed in primary endpoints, including changes in atheroma volume index (-12.65% vs. -8.51%, p=0.768) and percent atheroma volume (-4.36% vs. -9.98%, p=0.526), and in secondary endpoints including a change in neointimal volume index (7.84 vs. 4.94 mm3/mm, p=0.087). CONCLUSION: ω-3 PUFA had no definite additional effect on the regression of coronary atherosclerosis when added to statin in CAD patients undergoing PCI.
Atherosclerosis
;
Coronary Artery Disease*
;
Fatty Acids, Omega-3*
;
Follow-Up Studies
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors*
;
Percutaneous Coronary Intervention*
;
Plaque, Atherosclerotic
;
Stents
;
Ultrasonography
9.Prevalence of Neuropathic Pain and Patient-Reported Outcomes in Korean Adults with Chronic Low Back Pain Resulting from Neuropathic Low Back Pain.
Jin Hwan KIM ; Jae Taek HONG ; Chong Suh LEE ; Keun Su KIM ; Kyung Soo SUK ; Jin Hyok KIM ; Ye Soo PARK ; Bong Soon CHANG ; Deuk Soo JUN ; Young Hoon KIM ; Jung Hee LEE ; Woo Kie MIN ; Jung Sub LEE ; Si Young PARK ; In Soo OH ; Jae Young HONG ; Hyun Chul SHIN ; Woo Kyung KIM ; Joo Han KIM ; Jung Kil LEE ; In Soo KIM ; Yoon HA ; Soo Bin IM ; Sang Woo KIM ; In Ho HAN ; Jun Jae SHIN ; Byeong Cheol RIM ; Bo Jeong SEO ; Young Joo KIM ; Juneyoung LEE
Asian Spine Journal 2017;11(6):917-927
STUDY DESIGN: A noninterventional, multicenter, cross-sectional study. PURPOSE: We investigated the prevalence of neuropathic pain (NP) and patient-reported outcomes (PROs) of the quality of life (QoL) and functional disability in Korean adults with chronic low back pain (CLBP). OVERVIEW OF LITERATURE: Among patients with CLBP, 20%–55% had NP. METHODS: Patients older than 20 years with CLBP lasting for longer than three months, with a visual analog scale (VAS) pain score higher than four, and with pain medications being used for at least four weeks before enrollment were recruited from 27 general hospitals between December 2014 and May 2015. Medical chart reviews were performed to collect demographic/clinical features and diagnosis of NP (douleur neuropathique 4, DN4). The QoL (EuroQoL 5-dimension, EQ-5D; EQ-VAS) and functional disability (Quebec Back Pain Disability Scale, QBPDS) were determined through patient surveys. Multiple linear regression analyses were performed to compare PROs between the NP (DN4≥4) and non-NP (DN4 < 4) groups. RESULTS: A total of 1,200 patients (females: 65.7%; mean age: 63.4±13.0 years) were enrolled. The mean scores of EQ-5D, EQ-VAS, and QBPDS were 0.5±0.3, 55.7±19.4, and 40.4±21.1, respectively. Among all patients, 492 (41.0%; 95% confidence interval, 38.2%–43.8%) suffered from NP. The prevalence of NP was higher in male patients (46.8%; p < 0.01), in patients who had pain based on radiological and neurological findings (59.0%; p < 0.01), and in patients who had severe pain (49.0%; p < 0.01). There were significant mean differences in EQ-5D (NP group vs. non-NP group: 0.4±0.3 vs. 0.5±0.3; p < 0.01) and QBPDS (NP group vs. non-NP group: 45.8±21.2 vs. 36.3±20.2; p < 0.01) scores. In the multiple linear regression, patients with NP showed lower EQ-5D (β=−0.1; p < 0.01) and higher QBPDS (β=7.0; p < 0.01) scores than those without NP. CONCLUSIONS: NP was highly prevalent in Korean patients with CLBP. Patients with CLBP having NP had a lower QoL and more severe dysfunction than those without NP. To enhance the QoL and functional status of patients with CLBP, this study highlights the importance of appropriately diagnosing and treating NP.
Adult*
;
Back Pain
;
Cross-Sectional Studies
;
Diagnosis
;
Hospitals, General
;
Humans
;
Linear Models
;
Low Back Pain*
;
Male
;
Neuralgia*
;
Prevalence*
;
Quality of Life
;
Visual Analog Scale