Tags

Type your tag names separated by a space and hit enter

Soft tissue artifact compensation in knee kinematics by double anatomical landmark calibration: performance of a novel method during selected motor tasks.
IEEE Trans Biomed Eng. 2005 Jun; 52(6):992-8.IT

Abstract

The purpose of the present work was to describe and assess the performance on two selected subjects of a new method for the compensation of soft tissue artifact on knee rotations and translations during the execution of step up/down, sit-to-stand/stand-to-sit, and flexion against gravity. Soft tissue artifact has been recognized as the most critical source of error in gait analysis data. Its propagation strongly affects joint angles, in particular those characterized by a small range of motion, such as knee ab/adduction and internal/external rotation. This may be critical in the exploitation of gait analysis data for clinical decisions. The proposed method is based on the flexion/extension angle interpolation of two anatomical landmark calibrations taken at the extremes of motion. Its performance on knee rotation and translations was tested on a kinematics data-set obtained by the synchronous combination of traditional stereophotogrammetry and 3-D fluoroscopy. The newly proposed method was extremely effective on the compensation of soft tissue artifact propagation to knee rotations, in particular mean values of the root mean square error on ab/adduction and internal/external rotation angles decreased from 3.7 degrees and 3.7 degrees to 1.4 degrees and 1.6 degrees, respectively, with respect to single calibration. Mainly, knee translations calculated from stereophotogrammetric data using the proposed compensation method were found to be reliable with respect to the fluoroscopy-based gold standard. The residual mean values of the root mean square error were 2.0, 2.8, and 2.1 mm for anterior/posterior, vertical, and medio/lateral translations, respectively.

Authors+Show Affiliations

Cappello A
Dipartimento di Elettronica, Informatica e Sistemistica, Università degli Studi di Bologna, Viale Risorgimento 2, Bologna, Italy. acappello@deis.unibo.it
Stagni R
No affiliation info available
Fantozzi S
No affiliation info available
Leardini A
No affiliation info available

MeSH

AgedAlgorithmsBiomechanical PhenomenaComputer SimulationConnective TissueHumansImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalKnee JointModels, BiologicalMovementTask Performance and Analysis

Pub Type(s)

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

Language

eng

PubMed ID

15977729

Citation

Cappello, Angelo, et al. "Soft Tissue Artifact Compensation in Knee Kinematics By Double Anatomical Landmark Calibration: Performance of a Novel Method During Selected Motor Tasks." IEEE Transactions On Bio-medical Engineering, vol. 52, no. 6, 2005, pp. 992-8.
Cappello A, Stagni R, Fantozzi S, et al. Soft tissue artifact compensation in knee kinematics by double anatomical landmark calibration: performance of a novel method during selected motor tasks. IEEE Trans Biomed Eng. 2005;52(6):992-8.
Cappello, A., Stagni, R., Fantozzi, S., & Leardini, A. (2005). Soft tissue artifact compensation in knee kinematics by double anatomical landmark calibration: performance of a novel method during selected motor tasks. IEEE Transactions On Bio-medical Engineering, 52(6), 992-8.
Cappello A, et al. Soft Tissue Artifact Compensation in Knee Kinematics By Double Anatomical Landmark Calibration: Performance of a Novel Method During Selected Motor Tasks. IEEE Trans Biomed Eng. 2005;52(6):992-8. PubMed PMID: 15977729.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Soft tissue artifact compensation in knee kinematics by double anatomical landmark calibration: performance of a novel method during selected motor tasks. AU - Cappello,Angelo, AU - Stagni,Rita, AU - Fantozzi,Silvia, AU - Leardini,Alberto, PY - 2005/6/28/pubmed PY - 2005/7/20/medline PY - 2005/6/28/entrez SP - 992 EP - 8 JF - IEEE transactions on bio-medical engineering JO - IEEE Trans Biomed Eng VL - 52 IS - 6 N2 - The purpose of the present work was to describe and assess the performance on two selected subjects of a new method for the compensation of soft tissue artifact on knee rotations and translations during the execution of step up/down, sit-to-stand/stand-to-sit, and flexion against gravity. Soft tissue artifact has been recognized as the most critical source of error in gait analysis data. Its propagation strongly affects joint angles, in particular those characterized by a small range of motion, such as knee ab/adduction and internal/external rotation. This may be critical in the exploitation of gait analysis data for clinical decisions. The proposed method is based on the flexion/extension angle interpolation of two anatomical landmark calibrations taken at the extremes of motion. Its performance on knee rotation and translations was tested on a kinematics data-set obtained by the synchronous combination of traditional stereophotogrammetry and 3-D fluoroscopy. The newly proposed method was extremely effective on the compensation of soft tissue artifact propagation to knee rotations, in particular mean values of the root mean square error on ab/adduction and internal/external rotation angles decreased from 3.7 degrees and 3.7 degrees to 1.4 degrees and 1.6 degrees, respectively, with respect to single calibration. Mainly, knee translations calculated from stereophotogrammetric data using the proposed compensation method were found to be reliable with respect to the fluoroscopy-based gold standard. The residual mean values of the root mean square error were 2.0, 2.8, and 2.1 mm for anterior/posterior, vertical, and medio/lateral translations, respectively. SN - 0018-9294 UR - https://www.unboundmedicine.com/medline/citation/15977729/Soft_tissue_artifact_compensation_in_knee_kinematics_by_double_anatomical_landmark_calibration:_performance_of_a_novel_method_during_selected_motor_tasks_ DB - PRIME DP - Unbound Medicine ER -