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KMID : 0613320000060040152
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Journal of the Korean Bone and Joint Tumor Soceity
2000 Volume.6 No. 4 p.152 ~ p.162
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Radiologic Evaluation of Limb Salvage Operation with Tumor Prosthesis
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Moon Sang-Ho
Lee Sang-Hoon
Kim Han-Soo
Oh Joo-Han
Ko Byung-Won
Koo Ki-Hyoung
Lee Jae-Hag
Hwang Chung-Soo
Lee Han-Koo
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Abstract
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Purpose : To verify radiological changes of limb salvage operation using tumor prosthesis.
Materials and Methods : Sixty-nine cases which used tumor prosthesis were reviewed. They have been followed up for average four years and nine months. We evaluated radiographs by ISOLS(International Symposium On Limb Salvage) radiological implants evaluation system immediate postoperatively, at postoperative 1 year and last follow-up. After converting ‘excellent, good, fair, poor’ to ‘4, 3, 2, 1’ for stastical analysis, data were analyzed according to the use of cement, anatomical sites, diagnosis implant designs and age (＜20 year vs. ≥20 year) using t-test and ANOVA.
Results : The outcomes of cemented type prostheses were superior in remodelling and interface but inferior in anchorage. The scores of proximal femur and distal tibia were worse in bone remodelling. Osteosarcoma group had lower scores in anchorage and implant articular problem. There were no significant differences according to four different implant designs and age.
Conclusion : In the intermediate term follow-up radiological evaluation, cemented type prosthesis were better in the aspects of bony resorption and osteolysis, and cementless one in anchorage. Distal femur and proximal tibia have higher scores in bony resorption, and osteosarcoma was worse tumor entity in anchorage and articular problem, and chemotherapy may be the cause.
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KEYWORD
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Bone tumor, Tumor prosthesis, Radiologic evaluation
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