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Biomechanical differences exhibited during sit-to-stand between total knee arthroplasty designs of varying radii.
J Arthroplasty. 2006 Dec; 21(8):1193-9.JA

Abstract

The purpose of the study was to investigate the influence of the mechanical differences between a single-radius total knee arthroplasty (SR TKA) and a multi-radius (MR) TKA design on the functional performance during a sit-to-stand movement. Three-dimensional kinematics and electromyography for selected knee flexor and extensor muscles were obtained for 16 (8 SR and 8 MR) unilateral, posterior-stabilized TKA participants. Compared to the SR group, the MR group demonstrated compensatory adaptations, with increases in performance time, trunk flexion displacement and velocity, and knee extensor electromyography; and greater relative hamstring co-activation of the MR limbs was needed to increase joint stability. An initial knee abduction displacement was exhibited by more MR than SR participants. In conclusion, SR TKA provides functional benefits to patients.

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Authors+Show Affiliations

Wang H
Queens College, City University of New York, Flushing, New York 11367, USA.
Simpson KJ
No affiliation info available
Ferrara MS
No affiliation info available
Chamnongkich S
No affiliation info available
Kinsey T
No affiliation info available
Mahoney OM
No affiliation info available

MeSH

AgedArthroplasty, Replacement, KneeBiomechanical PhenomenaElectromyographyHumansKnee JointPosture

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17162181

Citation

Wang, He, et al. "Biomechanical Differences Exhibited During Sit-to-stand Between Total Knee Arthroplasty Designs of Varying Radii." The Journal of Arthroplasty, vol. 21, no. 8, 2006, pp. 1193-9.
Wang H, Simpson KJ, Ferrara MS, et al. Biomechanical differences exhibited during sit-to-stand between total knee arthroplasty designs of varying radii. J Arthroplasty. 2006;21(8):1193-9.
Wang, H., Simpson, K. J., Ferrara, M. S., Chamnongkich, S., Kinsey, T., & Mahoney, O. M. (2006). Biomechanical differences exhibited during sit-to-stand between total knee arthroplasty designs of varying radii. The Journal of Arthroplasty, 21(8), 1193-9.
Wang H, et al. Biomechanical Differences Exhibited During Sit-to-stand Between Total Knee Arthroplasty Designs of Varying Radii. J Arthroplasty. 2006;21(8):1193-9. PubMed PMID: 17162181.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biomechanical differences exhibited during sit-to-stand between total knee arthroplasty designs of varying radii. AU - Wang,He, AU - Simpson,Kathy J, AU - Ferrara,Michael S, AU - Chamnongkich,Samatchai, AU - Kinsey,Tracy, AU - Mahoney,Ormonde M, PY - 2004/09/18/received PY - 2006/02/04/accepted PY - 2006/12/13/pubmed PY - 2007/3/31/medline PY - 2006/12/13/entrez SP - 1193 EP - 9 JF - The Journal of arthroplasty JO - J Arthroplasty VL - 21 IS - 8 N2 - The purpose of the study was to investigate the influence of the mechanical differences between a single-radius total knee arthroplasty (SR TKA) and a multi-radius (MR) TKA design on the functional performance during a sit-to-stand movement. Three-dimensional kinematics and electromyography for selected knee flexor and extensor muscles were obtained for 16 (8 SR and 8 MR) unilateral, posterior-stabilized TKA participants. Compared to the SR group, the MR group demonstrated compensatory adaptations, with increases in performance time, trunk flexion displacement and velocity, and knee extensor electromyography; and greater relative hamstring co-activation of the MR limbs was needed to increase joint stability. An initial knee abduction displacement was exhibited by more MR than SR participants. In conclusion, SR TKA provides functional benefits to patients. SN - 0883-5403 UR - https://www.unboundmedicine.com/medline/citation/17162181/Biomechanical_differences_exhibited_during_sit_to_stand_between_total_knee_arthroplasty_designs_of_varying_radii_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0883-5403(06)00332-9 DB - PRIME DP - Unbound Medicine ER -