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Related Experiment Video

Updated: Jul 15, 2026

Imaging of the Microstructural Failure Mechanism in the Human Hip

Imaging of the Microstructural Failure Mechanism in the Human Hip

Published on: September 29, 2023

Initial stability of surface vs. full cemented tibial components under cyclic loading.

Michelle Khan¹, Irene Ohlen Moldestad², Peter Ellison³

¹Biomatlab, Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway.

|July 13, 2026

Summary

Full cementation of tibial components in knee replacements offers superior anterior stability and bonding strength compared to surface cementation. This technique may reduce initial implant movement, enhancing long-term outcomes for patients undergoing total knee arthroplasty.

Keywords:

Aseptic loosening Cementing techniques Full cementation Initial stability Surface cementation TKA

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Imaging of the Microstructural Failure Mechanism in the Human Hip

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Published on: September 29, 2023

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Published on: September 27, 2024

Area of Science:

Orthopedic surgery
Biomaterials engineering
Biomechanics

Background:

Total knee arthroplasty (TKA) is a common procedure for end-stage osteoarthritis.
Aseptic loosening of the tibial component is a significant concern in TKA.
Current cementing techniques for tibial components lack consensus, potentially impacting implant stability.

Purpose of the Study:

To compare surface cementation (SC) versus full cementation (FC) of tibial components.
To evaluate differences in migration, micromotion, and bonding strength.
To assess the correlation between cement thickness and implant movement.

Main Methods:

A composite tibia model was used to compare SC and FC techniques for a specific tibial baseplate.
Models underwent 20,000 loading cycles simulating physiological conditions.
Migration, micromotion, and push-out bonding strength were measured and statistically analyzed.

Main Results:

Full cementation (FC) showed significantly less anterior migration and micromotion compared to surface cementation (SC).
FC demonstrated a higher mean bonding strength than SC.
Increased anterior cement thickness correlated with reduced micromotion.

Conclusions:

Full cementation provides enhanced anterior stability and superior bonding strength for the tibial component.
FC technique appears to minimize initial implant movement, potentially improving TKA longevity.
These findings support FC as a preferred method for cementing tibial components in TKA.