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류마토이드 및 골관절염에 대한 인공 슬관절의 방사선적 결과 분석
한창동,신상진,한대용 ( Chang Dong Han,Sang Jin Shin,Dae Yong Han ) 대한슬관절학회 1996 대한슬관절학회지 Vol.8 No.1
Although long term studies of the total knee arthroplasty have confirmed reliable relief of pain and maintenance of function, the late fioosening of the component being the most serious complication. So we analyzed the radiological results of the cementless total knee arthroplasty performed in osteoathritis and rheumatoicl arthritis. The cementless totaI knee arthroplasty was performed in 48 osteoarthritis knees and 28 rheumatoid arthritis knees from Fehurary 1987 to December 1992. The clinical and radiological analysis were performed between two groups using the American Knee Society roentgenographic evaluation and Hospital for Special Surgery knee score system. The foliow up period was ranged from 36 months to 96 months ( average 50 months ). The clinical results including knee scores and range of motion were similar in hoth groups. The improvement of range of motion and flexion contracture after total knee arthroplasty was remarkable in rheumatoid arthritis group. There was no signifcant differences in radiological results between the osteoarthritis,md the rheumatoid arthritis. In rheumatoid arthritis(81%) the radiolucent ]ines were more frequently ohserved than in osteoarthritis(73%), but the appearance of the lines was earlier in osteoarthritis(6 month) than in rheumatoid arthritis(8 tnonth), The radiolucent lines showed higher frequency in zone 4 on the femoral side in both y oups. On the tibial side the osteoarthritis showed higher frequency in zone 4 and the rheumatoid arthritis in zone 1. I'he radiolucent1inc.s were found more frequently on the tibial side(76%) than the femoral side(51%). In conclusion, there was no significant difference in clinical and radiological results between the osteoarthritis and the rheumatoid arthritis group after coment1ess fixation method. Even in the patient with the poor bone stock like rheumatoid arl.hritis, there seems to he no relations of the bone ingrowth hetween the component. And incomplete radiolucent lines may he of minor c]inical importance, but progressive and continuous lines suggest potential loosening shouM be considered carefully.
인공슬관절 치환술에서의 수술후 혈액 회수 및 재주입 장치들의 비교
한창동,이원영,장준섭 ( Chang Dong Han,Won Young Lee,Jun Seop Jahng ) 대한슬관절학회 1995 대한슬관절학회지 Vol.7 No.2
A prospective, comparative matched study was conducted in 81 cases of the total knee arthroplasty(TKA) patients between multiple reinfusion system(Constavac Blood Conservation,CBC) and single reinfusion system(Ortbo-evac system) for postoperative blood salvage. In the CBC(59 cases), the drainage blood was reinfused 2 or 3 times for 24 houis. In the Ortho-evac(22 cases), the drainage blood was reinfosed only onc time during 6 hovrs. L. Ih the CBC, the tota1 driinage blood was 1031cc(58.6% of total lost blood) and the amount of blood salvage was 815cc(70/o of total draiaage) in average. 2. In the Ortho-evac system, the total drainage blood was 1176cc(57.9% of total lost blood) and the amount of blqod salvage was 880cc(?4.8cc of total drainage) in average. 3. About?0% of the total drainage blood was collected within 6 hours postoperatively in both systems. 4. Two systems showed eimilar changes of hemoglobin and hematocrit at 24 hours and 7 days postoperatively. 5. Two cases(3.3%) of the CBC showed persistent high fever, wound swelling and local heat which suspicious of infective state. 6. Two syatems are equally effective in reinfusion of drainage blood, but single reinfusion system is more safe, reliable and effective method than multiple reinfusion system.
한창동,이두형,양익환 연세대학교의과대학 2007 Yonsei medical journal Vol.48 No.2
Purpose: Several analgesic techniques are available for pain management after a major operation. Materials and methods: From December 2005 to February 2006, a prospective, double-blind study was performed involving 90 patients who had undergone a total knee arthroplasty. Patients were randomly divided into three equal groups (n=30). Demographic data, including age, height, weight, knee score, visual analogue scale (VAS), and range of flexion were evaluated preoperatively. Before wound closure, patients were given intra-synovial injections of the following solutions: patients in group I received 40mL of 300mg ropivacaine with 1:200,000 epinephrine and 5mg morphine; patients in Group II received 40mL of 300mg ropivacaine with epinephrine; and patients in Group III received 50mL normal saline as a control. All patients received an epidural patient-controlled analgesia (PCA) for 24 postoperative hours. Analgesic efficacy was evaluated using the VAS at intervals of 2, 4, 6, 12, 24, 32, 40, and 48 hours postoperatively. During this period, the side effects, the dosage of rescue analgesia required, and the range of knee flexion were recorded for each group. Results: There were no significant differences among the three groups with regards to the VAS and the required dose of rescue analgesia (p>0.05). None of the groups demonstrated significant differences in the range of knee flexion and the incidence of postoperative nausea and emesis (p>0.05). Conclusion: Therefore, we found that ropivacaine, alone or with morphine, injected into the synovial tissue, along with an epidural PCA has no additional benefits in pain control after a total knee arthroplasty.
한창동,허갑범,이현철,임승길,이관우,김경래,안광진,김미림,송영득,지제근 대한내분비학회 1991 Endocrinology and metabolism Vol.6 No.1
Hypophosphatemic osteomalacia occurred in a 31-year-old man. The leading clinical symptom was progressive severe generalized bone pain and X-ray studies demonstrated multiple rib fractures and demineralization of the skeleton. Further work-up revealed hypophosphatemia with a low tubular maximal phophate reabsorption per glomerular filtrate (Tm/GFR), normocacemia, elevated alkaline phosphatase and normal PTH. Bone biopsy showed the presence of increased osteoid volume and osteid seam thickness as evidence for severe osvere osteomalacie. No inborn errers, family history or paraneoplastic sign could be detected. Defective renal tubular reabsorption of phosphate is likely to be underlying cause of the disease. Oral phosphorus and vitamin D administration did not correct the renal phosphate leak but remains the therapy of choice. (J Kor Soc Endocrinol 6:75 81, 1991)