Hip Joint Centre Localization: Evaluation of Formal Methods and Effects on Joint Kinematics

Żuk, Magdalena; Świątek‐Najwer, Ewelina; Pezowicz, Celina

doi:10.1007/978-3-319-06596-0_6

Cited by 6 publications

(6 citation statements)

References 24 publications

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“…Davis predictive method was applied to the femur head in both protocols; therefore, the effect of the hip joint centre (HJC) localization method is eliminated in this study. Application of a different hip HJC localization method would alter the estimated HJC position (by as much as several centimetres) and the resulting knee and hip angle in the sagittal and frontal plane [ 21 , 22 ] as well as kinetic variables [ 8 , 23 ]. Recently, various methods have been proposed and validated [ 24 , 25 ] with proven better accuracy than Davis's regression equation.…”

Section: Discussionmentioning

confidence: 99%

“…It is an anatomically based protocol, fully consistent with the current ISB recommendation [ 5 ], which appears to be useful in clinical application due to the need for a reliable intra- and intersubject comparison of kinematic gait variables reported in clinical terminology [ 4 ]. Additionally, this marker set allows for a functional method of determining the joint centres and axes of rotation, which has been attempted in previous papers and has given reasonable results [ 1 , 21 , 23 , 28 , 29 ]. Both protocols show similar, high intertrial repeatability, which is comparable to previous studies.…”

Section: Discussionmentioning

confidence: 99%

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Kinematic Analysis of a Six-Degrees-of-Freedom Model Based on ISB Recommendation: A Repeatability Analysis and Comparison with Conventional Gait Model

Żuk

Pezowicz

2015

Applied Bionics and Biomechanics

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Objective. The purpose of the present work was to assess the validity of a six-degrees-of-freedom gait analysis model based on the ISB recommendation on definitions of joint coordinate systems (ISB 6DOF) through a quantitative comparison with the Helen Hays model (HH) and repeatability assessment. Methods. Four healthy subjects were analysed with both marker sets: an HH marker set and four marker clusters in ISB 6DOF. A navigated pointer was used to indicate the anatomical landmark position in the cluster reference system according to the ISB recommendation. Three gait cycles were selected from the data collected simultaneously for the two marker sets. Results. Two protocols showed good intertrial repeatability, which apart from pelvic rotation did not exceed 2°. The greatest differences between protocols were observed in the transverse plane as well as for knee angles. Knee internal/external rotation revealed the lowest subject-to-subject and interprotocol repeatability and inconsistent patterns for both protocols. Knee range of movement in transverse plane was overestimated for the HH set (the mean is 34°), which could indicate the cross-talk effect. Conclusions. The ISB 6DOF anatomically based protocol enabled full 3D kinematic description of joints according to the current standard with clinically acceptable intertrial repeatability and minimal equipment requirements.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Kinematic Analysis of a Six-Degrees-of-Freedom Model Based on ISB Recommendation: A Repeatability Analysis and Comparison with Conventional Gait Model

Żuk

Pezowicz

2015

Applied Bionics and Biomechanics

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“…Recent human in-vivo studies investigated the accuracy of HJC localisation using functional methods against medical imaging techniques and compared the HJC estimate error of predictive techniques and functional methods [9, 11, 12, 14]. All study results supported that the Harrington method is the best predictive method [9, 11, 13, 14].…”

Section: Discussionmentioning

confidence: 88%

“…The accuracy of CoR estimation is sensitive to the implementation of functional methods [3, 7, 12, 25]. In this study, we used a mechanical linkage to investigate the performance of four functional methods that determine the CoR during a quasi-planar movement.…”

Section: Discussionmentioning

confidence: 99%

“…Camomilla et al [5] suggested that star-arc movement may be preferred to achieve an optimal estimation with a range of movement greater than 30 degrees, which has been widely adapted in human studies. The superiority of functional methods over predictive regression methods for HJC estimation have been proven in in-vivo human studies [9, 11, 12]. Functional methods achieved better agreement with the HJC measured by dual fluoroscopy (11.0 ± 3.3 mm) than predictive methods (18.1 mm ± 9.5 mm) in the study with able-bodied subjects [9].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of functional methods of joint centre determination for quasi-planar movement

2019

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Functional methods identify joint centres as the centre of rotation (CoR) of two adjacent movements during an ad-hoc movement. The methods have been used for functionally determining hip joint centre in gait analysis and have revealed advantages compared to predictive regression techniques. However, the current implementation of functional methods hinders its application in clinical use when subjects have difficulties performing multi-plane movements over the required range. In this study, we systematically investigated whether functional methods can be used to localise the CoR during a quasi-planar movement. The effects of the following factors were analysed: the algorithms, the range and speed of the movement, marker cluster location, marker cluster size and distance to the joint centre. A mechanical linkage was used in our study to isolate the factors of interest and give insight to variation in implementation of functional methods. Our results showed the algorithms and cluster locations significantly affected the estimate results. For all algorithms, a significantly positive relationship between CoR errors and the distance of proximal cluster coordinate location to the joint centre along the medial-lateral direction was observed while the distal marker clusters were best located as close as possible to the joint centre. By optimising the analytical and experimental factors, the transformation algorithms achieved a root mean square error (RMSE) of 5.3 mm while the sphere fitting methods yielded the best estimation with an RMSE of 2.6 mm. The transformation algorithms performed better in presence of random noise and simulated soft tissue artefacts.

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The Ultrasound Investigation of the Medial Head of Gastrocnemius Muscle

Świątek‐Najwer

Czajkowska

Jankowski

2016

Advances in Intelligent Systems and Computing

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Hip Joint Centre Localization: Evaluation of Formal Methods and Effects on Joint Kinematics

Cited by 6 publications

References 24 publications

Kinematic Analysis of a Six-Degrees-of-Freedom Model Based on ISB Recommendation: A Repeatability Analysis and Comparison with Conventional Gait Model

Kinematic Analysis of a Six-Degrees-of-Freedom Model Based on ISB Recommendation: A Repeatability Analysis and Comparison with Conventional Gait Model

Evaluation of functional methods of joint centre determination for quasi-planar movement

The Ultrasound Investigation of the Medial Head of Gastrocnemius Muscle

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