Difference of the Mechanical Strength of Proximal Tibia according to Resection Distance from Joint Surface

PURPOSE: This study carried out to evaluate the mechanical strength of proximal tibia according to resection distance from joint surface and to use this data for total knee arthroplasty. MATERIALS AND METHODS: 20 cases of knee computed tomography images were obtained from knee osteoarthritis patients undergoing total knee arthroplasty. Based on computed tomography images, the finite element models were created. The 8-node hexahedron element was made from BIONIX™ (CANTIBio. Co, Suwon, Korea) which is automatic mesh generation software program. The finite element model of proximal tibia was resected to 6 mm, 8 mm, 10 mm, 12 mm, 15 mm, 18 mm from the lateral joint surface. 10% strain rate was applied to model using HyperMeshTM(Altair Engineering. Inc, seattle, USA)software. Ultimated stress was calculated from finite element anaysis using ANSYS 9.0 (ANSYS. Inc, orlando, USA). Paired sample t-test was used for statics. RESULTS: As compare to 6mm resection level, p value with 8 mm, 10 mm, 12 mm, 15 mm, 18 mm was 0.389, 0.774, 0.145, 0.005, 0.000. As compare to consecutive resection level, p-value was 0.389, 0.502, 0.205, 0.005, 0.021 between 6 mm and 8 mm, 8 mm and 10 mm, 10 mm and 12 mm, 12 mm and 15 mm, 15 mm and 18 mm. CONCLUSION: Ultimate strength was decreased according to increasing resection distance from joint surface but Within 12mm resection distance from lateral condyle articular surface of tibia, ultimate strength was not decreased statically significant(p>0.05) and consider it doing total knee arthroplasty.

Author dc:creator

• 김, 광균

Contributors dc:contributor

• 원, 예연
• 대학원 의학과
• 105578

• 경골
• 유한요소 해석
• 최대 응력
• 슬관절 인공관절 치환술
• Tibia
• Finite element analysis
• Ultimate stress
• Total knee arthroplasty

Language dc:language

ko

Identifier

http://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000006406
000000006406

OAI identifier oai:identifier

oai:repository.ajou.ac.kr:201003/1852