IMPROVED FIT BY ASYMMETRIC TIBIAL PROSTHESIS FOR TOTAL KNEE ARTHROPLASTY

被引:34
作者
WEVERS, HW
SIMURDA, M
GRIFFIN, M
TARREL, J
机构
[1] QUEENS UNIV, DEPT MECH ENGN, CLIN MECH GRP, KINGSTON K7L 3N6, ON, CANADA
[2] QUEENS UNIV, DEPT MATH & STAT, CLIN MECH GRP, KINGSTON K7L 3N6, ON, CANADA
[3] QUEENS UNIV, DEPT SURG, CLIN MECH GRP, KINGSTON, ON, CANADA
关键词
PROSTHESIS; TIBIA; TEMPLATE; ASYMMETRIC;
D O I
10.1016/1350-4533(94)90054-X
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The adequacy of the fit of the prosthesis to the tibia is an important variable in the outcome of total knee arthroplasty. A good fit covers the cancellous bone of both condyles, involves the denser bone of the tibial shell, but does not overhang beyond the bone at any point. In this research, an anatomically shaped tibial prosthetic base plate was developed from tibial measurements. A series of five template sizes, chosen to fit our patient database, was then evaluated for fit in the operating room by one surgeon. The assessment included bone exposure and the overhang of the prosthesis beyond the bone perimeter. The measurements of overhang or bone exposure were analysed. A commercial prosthesis was used as a control. An asymmetrical tibial plate conformed well to the anatomical shape of the resected upper tibia resulting in very little exposed bone and very few cases of overhang. The absence of such overhang provides better function in the surrounding stabilizing soft tissues, and so permits recovery of the maximum range of motion post operatively.
引用
收藏
页码:297 / 300
页数:4
相关论文
共 5 条
[1]   A QUANTITATIVE APPROACH TO RADIOGRAPHY OF THE LOWER-LIMB - PRINCIPLES AND APPLICATIONS [J].
COOKE, TDV ;
SCUDAMORE, RA ;
BRYANT, JT ;
SORBIE, C ;
SIU, D ;
FISHER, B .
JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME, 1991, 73 (05) :715-720
[2]   A 3-DIMENSIONAL FINITE-ELEMENT ANALYSIS OF THE UPPER TIBIA [J].
LITTLE, RB ;
WEVERS, HW ;
SIU, D ;
COOKE, TDV .
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 1986, 108 (02) :111-119
[3]  
Ryd L., 1990, CLIN ORTHOP RELAT R, V251, P189
[4]  
VINCE KG, 1986, 32ND ANN ORS NEW ORL
[5]   TIBIAL ANATOMY AND FUNCTIONAL AXES [J].
YOSHIOKA, Y ;
SIU, DW ;
SCUDAMORE, RA ;
COOKE, TDV .
JOURNAL OF ORTHOPAEDIC RESEARCH, 1989, 7 (01) :132-137