Dynamic in-vivo subtalar joint kinematics measured using a skin marker based protocol: a face validity study

2014 ◽  
pp. 140626132202008
Author(s):  
Ivan Birch ◽  
Kevin Deschamps
Keyword(s):  
Subtalar Joint ◽  
Joint Kinematics ◽  
Face Validity ◽  
Validity Study ◽  
Skin Marker

Dynamic in Vivo Subtalar Joint Kinematics Measured Using a Skin Marker–Based Protocol

2014 ◽  
Vol 104 (4) ◽  
pp. 357-364 ◽  
Author(s):  
Ivan Birch ◽  
Kevin Deschamps
Keyword(s):  
Subtalar Joint ◽  
Stance Phase ◽  
Face Validity ◽  
Exclusion Criteria ◽  
In Vivo Kinematics ◽  
Skin Marker ◽  
The Face ◽  
And Function ◽  
Interpatient Variation

Background The subtalar joint allows complex motion of the foot relative to the leg, the analysis of which has presented a major challenge for researchers. The considerable interpatient variation in structure and function of the subtalar joint highlights the importance of developing a protocol to assess the kinematics in individuals rather than developing an overarching description of function. The use of skin-mounted markers is, therefore, preferable, allowing the noninvasive collection of data. We sought to assess the face validity of a skin-mounted marker–based protocol to measure the in vivo kinematics of the subtalar joint. Methods Thirty participants were recruited using minimal exclusion criteria. A previously tested skin-mounted marker placement protocol was used in conjunction with two CODA MPX 30 sensors to capture data during walking. The data produced were compared with those from previous studies that used bone-mounted markers. Results The results in all three planes represented feasible outcomes compared with those of previous studies, the data falling within the ranges published. Patterns of movement demonstrated are similar to, although not the same as, those shown by previous investigations. Conclusions This study did not produce patterns of movement that exactly matched those of previous investigations. The results were, however, within the ranges previously published, and the patterns of movement shown were feasible. The results suggest the face validity of the method as a means of assessing the in vivo kinematics of the subtalar joint during the stance phase of gait.

scholarly journals Quantification of Skin Marker Movement at the Malleoli and Talar Heads

2011 ◽  
Vol 101 (6) ◽  
pp. 497-504 ◽  
Author(s):  
Ivan Birch ◽  
Kevin Deschamps
Keyword(s):  
Subtalar Joint ◽  
Three Dimensional ◽  
Frontal Plane ◽  
Joint Kinematics ◽  
Single Subject ◽  
Bony Landmarks ◽  
Skin Marker ◽  
Angular Measurements ◽  
Foot Function ◽  
Radiopaque Markers

Background: Quantifying subtalar joint kinematics during locomotion is a major challenge but is critical to understanding foot function. The difficulty of modeling the subtalar joint is demonstrated by the plethora of three-dimensional multisegment foot models lacking specific consideration of the subtalar joint. Scientific attempts to develop an adequate method of quantifying subtalar joint kinematics should include investigation of the movement of skin-mounted markers. This study reports on a single-subject investigation into this topic. Methods: Radiopaque markers were attached to the skin overlying the medial and lateral malleoli and the medial and lateral talar heads of a single subject. Frontal, sagittal, and transverse plane radiographs were taken with the foot in the fully pronated and fully supinated positions. Parallax corrected measurements were taken of the displacement of the markers from the bony landmarks. Measurements were also taken of the effect of these displacements on angular calculations. Results: Skin movement at the four anatomical locations was not uniform, with displacements varying from 0.61 to 22.18 mm. Movement of the malleolar markers was found to be less than that of the talar head markers. The distortion of angular measurements caused by movement of the skin markers relative to the bony landmarks was found to be only 1° in the sagittal and transverse planes and 5° in the frontal plane. Conclusions: For this subject, skin-mounted markers could be used to assess subtalar joint motion. Further studies are necessary to investigate the implications of these findings to the wider population. (J Am Podiatr Med Assoc 101(6): 497–504, 2011)

scholarly journals Experimental quantification of soft tissue deformation in quasi-static single leg flexion using biplanar imaging

2021 ◽  
Author(s):  
Bhrigu K. Lahkar ◽  
Pierre-Yves Rohan ◽  
Jean-Jacques Yaacoub ◽  
Helene Pillet ◽  
Xavier Bonnet ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Motion Analysis ◽  
Joint Kinematics ◽  
Similar Distribution ◽  
Tissue Deformation ◽  
Three Dimension ◽  
Soft Tissue Deformation ◽  
Skin Marker ◽  
Leg Flexion

AbstractSoft tissue deformation(STD) causes the most prominent source of error in skin marker (SM) based motion analysis, commonly referred to as Soft Tissue Artifact (STA). To compensate for its effect and to accurately assess in vivo joint kinematics, quantification of STD in three-dimension (3D) is essential. In the literature, different invasive and radiological approaches have been employed to study how STA propagates in joint kinematics. However, there is limited reference data extensively reporting distribution of the artifact itself in 3D.The current study was thus aimed at quantifying STD in 10 subjects along three anatomical directions. Biplanar X-ray system was used to determine true bone and SM positions while the subjects underwent quasi-static single leg flexion.STD exhibited inter-subject similarity. A non-uniform distribution was observed at the pelvis, thigh and shank displaying maximum at the thigh (up to 18.5 mm) and minimum at the shank (up to 8 mm). STD at the pelvis and thigh displayed inter-marker similarity. STD at the pelvis was found direction independent, showing similar distribution in all the 3 directions. However, the thigh and shank exhibited higher STD in the proximal-distal direction of the bone embedded anatomical reference frame. These findings may provide more insights while interpreting motion analysis data as well to effectively strategize STA compensation methods.

Noninvasive Quantification of Subtalar Joint Kinematics

2014 ◽  
Vol 104 (1) ◽  
pp. 103-109 ◽  
Author(s):  
Ivan Birch ◽  
Kevin Deschamps
Keyword(s):  
Validation Study ◽  
Subtalar Joint ◽  
Reference Frames ◽  
Joint Kinematics ◽  
Face Validity ◽  
Asymptomatic Individual ◽  
Noninvasive Method ◽  
Motion Patterns ◽  
Good Consistency ◽  
Study Support

A noninvasive method of assessing the motion of the subtalar joint was developed for use in clinical and research settings. Anatomical reference frames for the calcaneus and talus were produced using a marker placement model utilizing 14 markers. An asymptomatic individual was tested during barefoot walking with a CODA MPX30 system. Intertrial variability and motion patterns, in all three planes, of the calcaneus with respect to the talus were analyzed as part of a validation study. The observed patterns in all three planes were found to have good face validity with published literature as well as good consistency during stance. The findings of this study support the further use of this model in both clinical and research settings, allowing investigation of the motion patterns of a larger cohort than has hitherto been possible.

Three-Dimensional In Vivo Kinematics of the Subtalar Joint During Dorsi-Plantarflexion and Inversion-Eversion

2009 ◽  
Vol 30 (05) ◽  
pp. 432-438 ◽  
Author(s):  
Akira Goto ◽  
Hisao Moritomo ◽  
Tomonobu Itohara ◽  
Tetsu Watanabe ◽  
Kazuomi Sugamoto
Keyword(s):  
Subtalar Joint ◽  
Three Dimensional ◽  
In Vivo Kinematics ◽  
And Inversion

scholarly journals Predicting tibiotalar and subtalar joint angles from skin-marker data with dual-fluoroscopy as a reference standard

2016 ◽  
Vol 49 ◽  
pp. 136-143 ◽  
Author(s):  
Jennifer A. Nichols ◽  
Koren E. Roach ◽  
Niccolo M. Fiorentino ◽  
Andrew E. Anderson
Keyword(s):  
Subtalar Joint ◽  
Reference Standard ◽  
Joint Angles ◽  
Marker Data ◽  
Skin Marker

Using MR Imaging and X-Ray Fluoroscopy to Quantify the Effects of Soft-Tissue Artifact on Measurement of Knee-Joint Kinematics

2009 ◽  
Author(s):  
Massoud Akbarshahi ◽  
Justin W. Fernandez ◽  
Anthony Schache ◽  
Richard Baker ◽  
Marcus G. Pandy
Keyword(s):  
Soft Tissue ◽  
Knee Joint ◽  
Soft Tissues ◽  
Surgical Techniques ◽  
Joint Kinematics ◽  
Segmental Motion ◽  
Coordinate Systems ◽  
Knee Joint Kinematics ◽  
Soft Tissue Artifact

The ability to accurately measure joint kinematics in vivo is of critical importance to researchers in the field of biomechanics [1]. Applications range from the quantitative evaluation of different surgical techniques, treatment methods and/or implant designs, to the development of computer-based models capable of simulating normal and pathological musculoskeletal conditions [1,2]. Currently, non-invasive marker-based three dimensional (3D) motion analysis is the most commonly used method for quantitative assessment of normal and pathological locomotion. The accuracy of this technique is influenced by movement of the soft tissues relative to the underlying bones, which causes inaccuracies in the determination of segmental anatomical coordinate systems and tracking of segmental motion. The purpose of this study was to quantify the errors in the measurement of knee-joint kinematics due solely to soft-tissue artifact (STA) in healthy subjects. To facilitate valid inter-subject comparisons of the kinematic data, relevant anatomical coordinate systems were defined using 3D bone models generated from magnetic resonance imaging (MRI).

Accuracy and Feasibility of Dual Fluoroscopy and Model-Based Tracking to Quantify In Vivo Hip Kinematics During Clinical Exams

2013 ◽  
Author(s):  
Ashley L. Kapron ◽  
Stephen K. Aoki ◽  
Christopher L. Peters ◽  
Michael J. Bey ◽  
Roger Zauel ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Motion Artifact ◽  
Hip Impingement ◽  
Skin Marker ◽  
Hip Kinematics ◽  
Joint Center ◽  
Bony Morphology ◽  
Hip Joint Center ◽  
Fixed Center

Chondrolabral damage in hips with femoroacetabular impingement (FAI) may result from motion conflict due to abnormal bony morphology. Clinical range of motion and skin-marker motion analysis studies indicate that kinematics are altered in FAI hips, but assessments are limited due to subjective goniometer alignment, skin motion artifact, and imprecise estimations of the hip joint center. Computer simulations of collision between the femur and pelvis suggest that FAI reduces range of motion, but assume a fixed center of rotation and neglect bulk soft tissue restraints. Thus, hip impingement has not been accurately quantified in vivo.

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