• Proceedings of the KSME Conference
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• 2008.11a
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• pp.1515-1517
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• 2008

The purposes of this study were to measure the ranges of motion in knee joint and during continuous passive motion(CPM) treatment and to computationally calculate joint angles at the knee joint dependent on the CPM machine design and its application. Four CPM machines and eleven candidates were recruited for this study. Experimental and numerical studies have been peformed to calculate the range-of-motion of CPM machines. From the experimental measurements, the average range of motions at the knee joint for the CPM machine #1, #2, #3, and #4 were lower than the manufactures suggested values due to improper alignments of the hip and knee joints to the CPM machines. Different design of CPM machine generated different outcomes of the ROM at the knee joints during CPM. The experiments and kinematic simulation in this study could be used to provide useful guidance in the treatment of CPM after joint surgery.

• The Korean Journal of Pain
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• v.22 no.1
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• pp.78-82
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• 2009

Obturator nerve block has been used for analgesia of hip pain, relaxation of adductor muscle spasm related to cerebral palsy or paraplegia and in urologic surgery to prevent inadvertent obturator activity during lateral wall cystoscopy. Recently, ultrasound guidance has gained popularity in the field of peripheral nerve block and have been reported in some benefits. We describe here successfully performed both obturator nerve block under ultrasound guidance.

• Clinics in Shoulder and Elbow
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• v.4 no.2
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• pp.196-198
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• 2001

Synovial chondromatosis is the chondroid metaplasia of the synovial membrane, Large joints such as the knee and hip are commonly involved. Synovial chondromatosis very rarely develops within the shoulder joints. We have experienced the synovial chondromatosis developed in the right subscapular recess communicating the shoulder joint of a 30 year-old-female who was diagnosed by plain radiograph, MRI and microscopic findings, and then treated by arthroscopic synovectomy and removal of loose bodies.

• Journal of Fashion Business
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• v.8 no.6
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• pp.113-122
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• 2004

The purpose of this study was to examine and understand body image, appearance behaviors, and eating disturbances among females in the Diet Center. Subjects for this research were 40 females enrolled at the Diet Center in Seoul. They were interviewed for this study using an interview schedule at September in 2004. As a result, most of the subjects (87%) were dissatisfied with their bodies, especially their lower body such as hip, thighs, legs, stomach. Subjects tended to use dieting and fasting (46.3%) as the most common appearance management behaviors in relation to the body parts. Make-up (32.9%) was also used as routine appearance behaviors, while 37.5% of subjects have had cosmetic surgery on eyes, nose and liposuction. Sixty percent of subjects had participated in Diet center programs more than twice. This may mean that society pressures women to have a slim body, which then will result in more self-confidence. Subjects tend to engage in unhealthy eating behaviors, such as 'fasting', 'inducing vomit', 'using diet pills or laxatives', and 'after chewing, spit out'. Based on these results, socio-cultural body image regarding ideal beauty would be discussed.

• Pediatric Infection and Vaccine
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• v.16 no.1
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• pp.87-91
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• 2009

A 5-year-old boy was admitted to the hospital with a high fever and abnormal gait. Magnetic resonance imaging showed extensive swelling of the quadriceps and adductor muscles around the right hip and anterior thigh. A duplex scan demonstrated a thrombus from the external iliac vein to below the popliteal vein. The blood culture revealed Streptococcus pyogenes. The patient was immediately treated with antibiotics and anticoagulants. Follow-up sonography demonstrated complete disappearance of the venous thrombosis. We report a case of streptococcal myositis complicated by deep vein thrombosis.

• Journal of Magnetics
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• v.17 no.2
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• pp.145-152
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• 2012

Patients who underwent hip arthroplasty using the conventional fat suppression technique (CHESS) and a new technique (IDEAL) were compared quantitatively to assess the effectiveness and usefulness of the IDEAL technique. In 20 patients who underwent hip arthroplasty from March 2009 to December 2010, fat suppression T2 and T1 weighted images were obtained on a 3.0T MR scanner using the CHESS and IDEAL techniques. The level of distortion in the area of interest, the level of the development of susceptibility artifacts, and homogeneous fat suppression were analyzed from the acquired images. Quantitative analysis revealed the IDEAL technique to produce a lower level of image distortion caused by the development of susceptibility artifacts due to metal on the acquired images compared to the CHESS technique. Qualitative analysis of the anterior area revealed the IDEAL technique to generate fewer susceptibility artifacts than the CHESS technique but with homogeneous fat suppression. In the middle area, the IDEAL technique generated fewer susceptibility artifacts than the CHESS technique but with homogeneous fat suppression. In the posterior area, the IDEAL technique generated fewer susceptibility artifacts than the CHESS technique. Fat suppression was not statistically different, and the two techniques achieved homogeneous fat suppression. In conclusion, the IDEAL technique generated fewer susceptibility artifacts caused by metals and less image distortion than the CHESS technique. In addition, homogeneous fat suppression was feasible. In conclusion, the IDEAL technique generates high quality images, and can provide good information for diagnosis.

• Journal of Acupuncture Research
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• v.35 no.4
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• pp.252-258
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• 2018

This report showed the clinical outcome of an elderly patient with a femoral neck fracture who was treated non-operatively with Korean medical treatment. The patient had acupuncture, herbal medication, moxibustion, and participated in physical rehabilitation for 3 months. The effects of Korean medical treatment were measured every 2 weeks using the numeric rating scale (NRS) and the Harris hip score (HHS). After treatments, the NRS score for hip pain decreased from 8 to 2, and the HHS increased from 0 to 43. A 42-month follow-up showed the patient's NRS score was 0 and the HHS was 61. Furthermore, an X-ray showed complete union of the femoral neck fracture with no suspicion of avascular necrosis. These results suggest that Korean medical treatment can effectively reduce pain and aid rehabilitation in patient with femoral neck fractures with no surgery, resulting in complete union of the fracture.

• Proceedings of the KOSOMBE Conference
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• v.1996 no.11
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• pp.337-346
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• 1996

Debonding of cement-femoral stem interface has been suggested as a initial focus of loosening mechanism in many previous studies of cemented total hip replacement. The purpose of this study was to investigate the effect of debonding of cement-femoral stem interface to the bone-cement interface by using three-dimensional non-liner finite element analysis. Three cases of partial debonded, full debonded, full bonded cement-bone interface were modelled with partial bonding of distal 70mm from the tip of femoral stem. Each situation was studied under loading stimulating one-leg stanced gait of 68kg patient. The results showed that under partial and full debonded cement-stem interface condition the peak von Mises stress(3.1 MPa) were observed at the cement of bone-cement interface just under the calcar of proximal medial of femur, and sudden high peak stresses(3.5MPa) were developed at the distal tip of femoral stem at the lateral bone-cement interface in all 3 cases of bonding. The stresses were transfered very little to the cement of upper lateral bone-cement interface in partial and full debonded cases. Thus, once partial or full debonded cement-femoral stem interface occured, 3 times higher stress concentration were developed on the cement of proximal medial bone-cement interface than full bonded interface, and these could cause loosening of cemented total hip replacement. Clinically, preservation of more rigid cement-femoral stem interface may be important factor to prevent loosening of femoral stem.

• Journal of Chest Surgery
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• v.42 no.6
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• pp.719-724
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• 2009

Background: As the patients who undergo heart transplantation have achieved better survival in recent years, growing number of recipients are at a risk for experiencing surgical complications in addition to rejection and infection. In this paper, we report on our experience with the surgical complications that occurred in heart transplant recipients. Material and Method: From April 1994 to September 2003, 37 heart transplantations were performed at our center by a single surgeon. The indications for transplantation were dilated cardiomyopathy, ischemic cardiomyopathy, valvular cardiomyopathy and familial hypertrophic cardiomyopathy. Result: Twenty postoperative complications required surgeries in 15 patients (41%). The types of operations required were; redo-sternotomy for bleeding (5), pericardiostomy for effusion (4), implantation of a permanent pacemaker (1), right lower lobe lobectomy for aspergilloma (1), removal of urinary stone (1), cholecystectomy for gall bladder stone (1), drainage of a perianal abscess (1), paranasal sinus drainage (1), total hip replacement (1), partial gingivectomy due to gingival hypertrophy (1), urethrostomy (1), herniated intervertebral disc operation (1) and total hysterectomy for myoma uteri (1). The locations of the complications were mediastinal in 10 (27%) cases and extramediastihalin 10 (27%) cases. Conclusion: The relatively high incidence of extrathoracic complications associated with heart transplantation emphasizes the importance of a multidisciplinary approach to the improve long-term survival when managing those complex patients.

• Journal of Preventive Medicine and Public Health
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• v.49 no.4
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• pp.230-239
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• 2016

Objectives: We aimed to evaluate the effect of geographic units of analysis on measuring geographic variation in medical services utilization. For this purpose, we compared geographic variations in the rates of eight major procedures in administrative units (districts) and new areal units organized based on the actual health care use of the population in Korea. Methods: To compare geographic variation in geographic units of analysis, we calculated the age-sex standardized rates of eight major procedures (coronary artery bypass graft surgery, percutaneous transluminal coronary angioplasty, surgery after hip fracture, knee-replacement surgery, caesarean section, hysterectomy, computed tomography scan, and magnetic resonance imaging scan) from the National Health Insurance database in Korea for the 2013 period. Using the coefficient of variation, the extremal quotient, and the systematic component of variation, we measured geographic variation for these eight procedures in districts and new areal units. Results: Compared with districts, new areal units showed a reduction in geographic variation. Extremal quotients and inter-decile ratios for the eight procedures were lower in new areal units. While the coefficient of variation was lower for most procedures in new areal units, the pattern of change of the systematic component of variation between districts and new areal units differed among procedures. Conclusions: Geographic variation in medical service utilization could vary according to the geographic unit of analysis. To determine how geographic characteristics such as population size and number of geographic units affect geographic variation, further studies are needed.