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손원용,임홍철,윤정로,조정현,Shon, W.Y.,Lim, H.C.,Yoon, J.R.,Cho, J.H. 대한근골격종양학회 1997 대한골관절종양학회지 Vol.3 No.1
During the last decade, the use of primary amputation has decreased, and a larger number of patients are being treated with resection and reconstruction with limb preservation. The advantage of chemotherapy, improvements in diagnostic imaging methods and newer techniques for reconstruction have made limb salvage an alternative to amputation for most patients with malignant bone tumor. Clinical results and functional results of the limb salvage operation of bone tumors treated at the Department of Orthopaedic Surgery, Guro Hospital, Korea university was reviewed. Eighteen bone tumors(seven giant cell tumors and eleven malignant bone tumors.) were studied over a period of five years. The limb salvage group included fourteen endoprothesis, two pasteurized autograft, one near total scapulectomy and one rotationplasty. Functional evaluation was performed according to the Enneking's modified system. The results were as followed; 1. At a mean follow-up of thirty two months (15-77 months), fourteen(83%) of the eighteen patients with limb salvage procedures had been continuously disease free. 2. There are no local recurrence but deep infection developed in two patients and three patients with distant metastasis. 3. Thirteen(87%) of the fifteen patients showed above 60% of functional results. 4. Fourteen(93%) of the fifteen patients were satisfied with the limb salvage procedures.
인공관절 라이너의 내마모성 향상을 위한 초고분자량 폴리에틸렌의 감마선 조사에 따른 경도변화
김현묵(H. M. Kim),김동훈(D. H. Kim),황창선(C. S. Hwang),김성곤(S. K. Kim),손원용(W. Y. Shon),이종대(J. D. Lee) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Rockwell hardness test was conducted on conventional and crosslinked ultra-high molecular polyethylene(UHMWPE) all prepared from the same lot of medical grade GUR 1050. The conventional materials were unirradiated and gamma irradiated with 25kGy~200kGy. Gamma irradiated processing was found to significantly impact the crystallinity, and hence the mechanical behavior, of the highly crosslinked UHMWPE. The crystallinity and radiation dose were key predictors of the hardness, plastic flow, and failure properties of conventional and highly crosslinked UHMWPE. The correlation model from experiments would be the basic information to design the liner of artificial joint.