Comparison of in vivo contact positions for PS and PCR TKA implants using Lowest Point and full-contact techniques

Saikat Pal; Mohamed R. Mahfouz; Richard D. Komistek; Paul J. Rullkoetter

doi:10.1504/IJBET.2011.039200

Comparison of in vivo contact positions for PS and PCR TKA implants using Lowest Point and full-contact techniques

Saikat Pal, Mohamed R. Mahfouz, Richard D. Komistek, Paul J. Rullkoetter

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Evaluation of in vivo tibiofemoral contact following total knee arthroplasty provides valuable feedback to clinicians and researchers. The objective of the present study was to evaluate in vivo contact positions using a combination of fluoroscopy and Finite Element (FE) modelling. Center-of-Pressure (COP) contact locations from FE models were compared to Lowest Point (LP) results. Six P.F.C® Sigma Posterior Stabilised (PS) and 6 P.F.C® Sigma Posterior Cruciate Retraining (PCR) implants were analysed during weight-bearing knee flexion from 0° to 90°. Statistically significant differences were observed between the means of anterior-posterior contact position from the LP and COP methods (α = 0.05).

Original language	English (US)
Pages (from-to)	229-246
Number of pages	18
Journal	International Journal of Biomedical Engineering and Technology
Volume	5
Issue number	2-3
DOIs	https://doi.org/10.1504/IJBET.2011.039200
State	Published - Mar 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Biomedical Engineering

Keywords

COP
Centre-ofpressure contact
FE modelling
Full-contact analysis
Knee kinematics
Lowest point contact
TKA
Tibiofemoral contact
Video fluoroscopy

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10.1504/IJBET.2011.039200

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title = "Comparison of in vivo contact positions for PS and PCR TKA implants using Lowest Point and full-contact techniques",

abstract = "Evaluation of in vivo tibiofemoral contact following total knee arthroplasty provides valuable feedback to clinicians and researchers. The objective of the present study was to evaluate in vivo contact positions using a combination of fluoroscopy and Finite Element (FE) modelling. Center-of-Pressure (COP) contact locations from FE models were compared to Lowest Point (LP) results. Six P.F.C{\textregistered} Sigma Posterior Stabilised (PS) and 6 P.F.C{\textregistered} Sigma Posterior Cruciate Retraining (PCR) implants were analysed during weight-bearing knee flexion from 0° to 90°. Statistically significant differences were observed between the means of anterior-posterior contact position from the LP and COP methods (α = 0.05).",

keywords = "COP, Centre-ofpressure contact, FE modelling, Full-contact analysis, Knee kinematics, Lowest point contact, TKA, Tibiofemoral contact, Video fluoroscopy",

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AU - Rullkoetter, Paul J.

PY - 2011/3

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AB - Evaluation of in vivo tibiofemoral contact following total knee arthroplasty provides valuable feedback to clinicians and researchers. The objective of the present study was to evaluate in vivo contact positions using a combination of fluoroscopy and Finite Element (FE) modelling. Center-of-Pressure (COP) contact locations from FE models were compared to Lowest Point (LP) results. Six P.F.C® Sigma Posterior Stabilised (PS) and 6 P.F.C® Sigma Posterior Cruciate Retraining (PCR) implants were analysed during weight-bearing knee flexion from 0° to 90°. Statistically significant differences were observed between the means of anterior-posterior contact position from the LP and COP methods (α = 0.05).

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KW - Centre-ofpressure contact

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Comparison of in vivo contact positions for PS and PCR TKA implants using Lowest Point and full-contact techniques

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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