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Related Experiment Video

Updated: May 11, 2026

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis

Published on: May 8, 2014

Kinematic differences between gender specific and traditional knee implants.

Stefan K Saevarsson¹, Gulshan B Sharma, Heiko Ramm

¹Biomedical Engineering and the McCaig Institute for Bone and Joint Health, University of Calgary, Canada.

The Journal of Arthroplasty

|April 30, 2013

Summary

This summary is machine-generated.

Gender-specific knee implants showed a more lateral patellar shift compared to traditional implants, but neither design resulted in patellar maltracking. This study offers new insights into patella-specific outcomes in knee replacement surgery.

Keywords:

gender specific implants imaging kinematics patella prosthesis design total knee arthroplasty

Related Experiment Videos

Last Updated: May 11, 2026

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis

Published on: May 8, 2014

Area of Science:

Orthopedic Surgery
Biomechanical Engineering
Medical Imaging

Background:

The debate on gender-specific (GS) versus traditional knee implants lacks detailed patella-specific outcome data.
Existing techniques are insufficient for accurately assessing the patellar tracking benefits of GS femoral components.

Purpose of the Study:

To compare patellofemoral and tibiofemoral joint kinematics between GS and traditional knee implants.
To evaluate patellar tracking and geometric measures using novel imaging protocols.

Main Methods:

A comparative study involving 15 GS knees and 10 traditional knees.
Utilized novel computed tomography and radiography imaging protocols.
Analyzed 6 degrees of freedom for patellofemoral and tibiofemoral joints across the range of motion.

Main Results:

A significant difference in patellar medial/lateral shift was observed, with greater lateral shift in the GS component group.
No instances of patellar maltracking were detected in either the GS or traditional knee implant groups.
No other significant differences were found between the groups in this cohort.

Conclusions:

Gender-specific knee implants exhibit altered patellar kinematics, specifically a more lateral shift.
The study confirms that GS components, in this cohort, do not lead to patellar maltracking.
Further research is warranted to fully elucidate the long-term clinical implications of these biomechanical differences.