1.Compartive Accuracy of the SRK II, SRK/T and Holladay Formulas for Intraocular Lens Power Calculation in Severe Myopic Eyes .
Journal of the Korean Ophthalmological Society 1998;39(11):2635-2638
The predictive accuracy of the SRK II, SRK/T and Holladay formulas was evaluated in 22 eyes with sever myopia who had phacoemulsification and implantaton of posterior chamber IOL without suture. These patients were followed up for at least 6 months postoperatively. Correlation coefficient between the predicted refraction and actual refraction was 0.57(P<0.01) in the eyes using the SRK/T, 0.566(P<0.01) in the Holladay and (0.06(P=0.791) in the SRK II. The mean absolute error in the SRK/T 0.85 was smaller than that of the Holladay 1.04 and the SRK II1.08(p<0.05). The percentage of the eyes with absolute error within 1D was 68% in the SRK/T, 68% in the Holladay and 53% in the SRK II, but there was no statistically significant difference between them(p>0.05). The percentage of the eye with hyperopic shift(more hyperopic actual refraction than the predicted refraction) was 77% in the SRK II, 77% in the SRK/T and 86% in the Holladay, but there was no statistically significant difference between each formula(p>0.05). In conclusion, the SRK/T has the better predictive accuracy than the SRK II and Holladay in severe myopia and hyperopic shift tends to occur with the application of all three formulas.
Humans
;
Lenses, Intraocular*
;
Myopia
;
Phacoemulsification
;
Sutures
2.Biomechanical Test for Repair Technique of Full-thickness Rotator Cuff Tear.
Chae Ouk LIM ; Kyoung Jin PARK
Clinics in Shoulder and Elbow 2016;19(1):51-58
The arthroscopic rotator cuff repair is now considered a mainstream technique with highly satisfactory clinical results. However, concerns remain regarding healing failures for large and massive tears and high revision rate. In recent decades, various repair strategies and construct configurations have been developed for rotator cuff repair with the understanding that many factors contribute to the structural integrity of the repaired construct. The focus of biomechanical test in arthroscopic repair has been on increasing fixation strength and restoration of the footprint contact characteristics to provide early rehabilitation and improve healing. These include repaired rotator cuff tendon-footprint motion, increased tendon-footprint contact area and pressure, and tissue quality of tendon and bone. Recent studies have shown that a transosseous tunnel technique provides improved contact area and pressure between rotator cuff tendon and insertion footprint, and the technique of using double rows of suture anchors to recreate the native footprint attachment has been recently described. The transosseous equivalent suture bridge technique has the highest contact pressure and fixation force. In this review, the biomechanical tests about repair techniques of rotator cuff tear will be reviewed and discussed.
Rehabilitation
;
Rotator Cuff*
;
Suture Anchors
;
Sutures
;
Tears*
;
Tendons
3.Cement Augmentation for Lateral Row Fixation in Rotator Cuff Repair: A Case Report.
Jin Hwan KIM ; Kyoung Hwan KOH
Clinics in Shoulder and Elbow 2017;20(1):42-45
One of the most important factors leading to a successful healing of rotator cuff tear is good bone quality to secure the suture anchor in the bone for a stable fixation. However, rotator cuff tear are commonly found in elderly patients, and their proximal humerus often shows osteoporosis or cystic lesions. Especially when the transosseous repair prevails for a torn rotator cuff, a weak metaphyseal cancellous bone is often the case, which associated with difficulty in stable fixation of the lateral row suture anchor. In this situation, we were able to augment the lateral row fixation with polymethylmethacrylate bone cement. Although there is a concern of disturbance in the blood flow and healing potential, our case showed good clinical results with respect to healing. If we suspect a weak fixation of the lateral row suture anchor, bone cement seems to be a good option for augmentation.
Aged
;
Bone Cements
;
Humans
;
Humerus
;
Osteoporosis
;
Polymethyl Methacrylate
;
Rotator Cuff*
;
Suture Anchors
;
Tears
4.Arthroscopic Treatment for Septic Arthritis of the Shoulders in Neonates: A Case Report.
Kyoung Jin PARK ; Hyung Ki LEE
Clinics in Shoulder and Elbow 2016;19(3):163-167
Septic arthritis in neonates is a rare condition. A failure to make an early diagnosis of septic arthritis in neonates may leave a permanent disability as a result of a delayed treatment. Thus, septic arthritis, requires a prompt diagnosis and a timely treatment especially in this subset of patients. In this case report, we describe our treatment protocol for septic arthritis and concurrent osteomyelitis in the right shoulder of a 28-day-old newborn. Using 2.4 mm wrist arthroscopy, we performed an arthroscopic irrigation and drainage, to remove intra-articular debris and inflammatory tissue, and multiple drilling. We report a satisfactory clinical outcome without any postoperative complications or side effects.
Arthritis, Infectious*
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Arthroscopy
;
Clinical Protocols
;
Diagnosis
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Drainage
;
Early Diagnosis
;
Humans
;
Infant, Newborn*
;
Osteomyelitis
;
Postoperative Complications
;
Shoulder Joint
;
Shoulder*
;
Wrist
5.An overview of calf diarrhea - infectious etiology, diagnosis, and intervention.
Journal of Veterinary Science 2014;15(1):1-17
Calf diarrhea is a commonly reported disease in young animals, and still a major cause of productivity and economic loss to cattle producers worldwide. In the report of the 2007 National Animal Health Monitoring System for U.S. dairy, half of the deaths among unweaned calves was attributed to diarrhea. Multiple pathogens are known or postulated to cause or contribute to calf diarrhea development. Other factors including both the environment and management practices influence disease severity or outcomes. The multifactorial nature of calf diarrhea makes this disease hard to control effectively in modern cow-calf operations. The purpose of this review is to provide a better understanding of a) the ecology and pathogenesis of well-known and potential bovine enteric pathogens implicated in calf diarrhea, b) describe diagnostic tests used to detect various enteric pathogens along with their pros and cons, and c) propose improved intervention strategies for treating calf diarrhea.
Animals
;
Cattle
;
*Cattle Diseases/diagnosis/drug therapy/microbiology/prevention & control
;
Diarrhea/diagnosis/microbiology/prevention & control/*veterinary
6.Difference of Wear Damage of the Miller-Galante 1 and 2 Polyethylene Tibial Components.
Choong Hee WON ; Kyoung Jin PARK
The Journal of the Korean Orthopaedic Association 1999;34(5):937-942
PURPOSE: The purpose of this study was to examine the effects of change of polyethylene resin type and manufacturing method on the wear of polyethylene tibial component. MATERIALS AND METHODS: Thirteen MG I and 10 MG II components were retrieved at revision surgery. Each polyethylene tibial component was graded for surface wear damage. Density profiles of the polyethylene were measured to examine the extent of oxidative degradation of the polyethylene. RESULTS: The primary damage mode of the MG I retrievals was scratching and metallic debris, but the primary damage mode of the MG II was delamination (P<0.05). For the implants with implantation time of 5 years or more, the MG II polyethylene had a higher density value (0.959+/-0.002 g/cc, n=7) compared with the MG I (0.948+/-0.004 g/cc, n=11). Both delamination and polyethylene degradation increased with length of implantation time for the MG II components (P<0.01). Even after gamma sterilization, the directly molded 1900 MG I components experienced significantly less delamination and degradation than the machined GUR 415 MG II tibial components. CONCLUSIONS: This study suggests that delamination of polyethylene tibial components is influenced by resin type and/or manufacturing method
Fungi
;
Polyethylene*
;
Sterilization
7.Sebaceous Carcinoma and Basal Cell Epithelioma Developed in Organoid Nevus.
Kyoung Ae JANG ; Seh Jin AHN ; Jee Ho CHOI ; Jai Kyoung KOH
Annals of Dermatology 1999;11(1):59-61
In about 20 to 30 percent of cases with organoid nevus (nevus sebaceus), benign and/or ma-al lignant tumors of the epidermis and adnexae may develop. We describe a 71-year-old woman with sebaceous carcinoma and basal cell epithelioma developed in organoid nevus.
Aged
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Carcinoma, Basal Cell*
;
Epidermis
;
Female
;
Humans
;
Nevus*
;
Organoids*
8.Translocation of p53 Protein in Melanocytes and Malignant Melanoma Cells After UVB Irradiation.
Kyoung Hee CHOI ; Hye Jin KIM ; Yong CHOI ; Kyu Han KIM ; Kyoung Chan PARK
Annals of Dermatology 2001;13(3):133-138
BACKGROUND: UVB is responsible for most of the carcinogenic effects of sun exposure. OBJECTIVE: Aim of this study was to investigate the regulation and intracellular redistribution of p53 protein after UVB irradiation. METHODS: Cultured normal human melanocytes and G361 melanoma cells were used for west-ern blotting and confocal microscopic examination for determining expression and distribution of p53. RESULTS: UVB irradiation increased p53 expression in cultured normal human melanocytes and G361 malignant melanoma cells according to increasing doses of UVB. Furthermore, p53 moved from cytosol to nucleus after UVB irradiation. CONCLUSIONS: UVB irradiation induced overexpression and redistribution of p53 in cultured normal human melanocytes and G361 malignant melanoma cells.
Cytosol
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Humans
;
Melanocytes*
;
Melanoma*
;
Solar System
9.The Effect of Long-term Steroed Therapy combined with Azathioprine in Henoch-Schonlein Nephritis.
Kyoung Sang MOON ; So Young JIN ; Eun Mi KIM
Journal of the Korean Society of Pediatric Nephrology 1998;2(2):118-124
We describe cytologic findings of two cases of pilomatrixoma which had been cytologically misdiagnosed as suspicious malignant and malignant lesions in 35 year-old and 22 year-old females who presented a palpable neck mass. The cytologic smears showed many basaloid cells with a high nuclear-cytoplasmic ratio, nuclear hyperchromatism and prominent nucleoli, keratinized squamous cells with pyknotic nuclei, foreign body giant cells, and chronic inflammatory cells in necrotic background. Retrospective view of this aspiration smear revealed that these findings were characteristic features of pilomatrixoma, and the evenly distributed chromatin pattern as well as the lack of nuclear pleomorphism were considered to be the differential points from malignant neoplasm. Pilomatrixoma is a benign neoplasm which should be included in differential diagnosis if the fine needle aspiration cytologic smear of a neck mass or subcutaneous mass of any site showed these features.
Female
;
Humans
;
Diagnosis, Differential
10.Pulmonary Endometriosis: A case report.
Soo Jin JUNG ; Young Ju KIM ; Hye Kyoung YOON
Korean Journal of Pathology 1998;32(5):382-384
Pulmonary endometriosis is a rare disease which is characterized by hemoptysis during menstruation (catamenial hemoptysis). We report a case of pulmonary endometriosis in a 33-year-old housewife. She has had regular menses with moderate flow and minimal dysmenorrhea. She had undergone curettage in May 1995 for artificial abortion. In July 1995, she experienced the first episode of hemoptysis. A chest CT scan revealed a 2.0 1.0 cm sized ill-defined soft tissue density in the periphery of anterior segment of the left upper lobe with a surrounding irregular ground-glass opacity. A left upper lobectomy was done under the diagnosis of pulmonary endometriosis. Cut section of the resected lung showed a round red-brownish solid lesion, measuring 2.0x1.0cm in cross. Microscopically a focus of the endometrial tissue, which was composed of endometrial glands and stroma, was found in the lung parenchyme and many hemosiderin laden macrophages were seen in the surrounding alveoli. The postoperative course was favorable with no further episodes of hemoptysis.
Adult
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Curettage
;
Diagnosis
;
Dysmenorrhea
;
Endometriosis*
;
Female
;
Hemoptysis
;
Hemosiderin
;
Humans
;
Lung
;
Macrophages
;
Menstruation
;
Rare Diseases
;
Tomography, X-Ray Computed