Kinematic Differences Between Gender Specific and Traditional Knee Implants

Abstract In the ongoing debate about gender-specific (GS) vs. traditional knee implants, there is limited information about patella-specific outcomes. GS femoral component features should provide better patellar tracking, but techniques have not existed previously to test this accurately. Using nove...

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Bibliographic Details
Published in:The Journal of arthroplasty 2013-10, Vol.28 (9), p.1543-1550
Main Authors: Saevarsson, Stefan K., MSc, Sharma, Gulshan B., PhD, Ramm, Heiko, MS, Lieck, Robert, MS, Hutchison, Carol R., MD, FRCSC, Werle, Jason, MD, FRCSC, Matthiasdottir, Sigrun, BSc, Montgomery, Spencer J., DipAST, Romeo, Carolina I, Zachow, Stefan, PhD, Anglin, Carolyn, PhD, PEng
Format: Article
Language:English
Subjects:
Aged
Arthroplasty, Replacement, Knee
Biomechanical Phenomena
Female
gender specific implants
Humans
imaging
Imaging, Three-Dimensional
kinematics
Knee Joint - anatomy & histology
Knee Joint - diagnostic imaging
Knee Joint - physiopathology
Knee Joint - surgery
Knee Prosthesis
Male
Middle Aged
Orthopedics
patella
Prosthesis Design
Radiography
Sex Factors
total knee arthroplasty
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Summary:Abstract In the ongoing debate about gender-specific (GS) vs. traditional knee implants, there is limited information about patella-specific outcomes. GS femoral component features should provide better patellar tracking, but techniques have not existed previously to test this accurately. Using novel computed tomography and radiography imaging protocols, 15 GS knees were compared to 10 traditional knees, for the 6 degrees of freedom of the patellofemoral and tibiofemoral joints throughout the range of motion, plus other geometric measures and quality of life (QOL). Significant differences were found for patellar medial/lateral shift, where the patella was shifted more laterally for the GS femoral component. Neither group demonstrated patellar maltracking. There were no other significant differences in this well-functioning group.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2013.01.021