Model-Based Tracking of the Hip: Implications for Novel Analyses of Hip Pathology

Martín, Daniel; Greco, Nicholas J.; Klatt, Brian A.; Wright, Vonda J.; Anderst, William; Tashman, Scott

doi:10.1016/j.arth.2009.12.004

Cited by 51 publications

(48 citation statements)

References 26 publications

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“…The measured out-of plane translation and rotational components of the imaging accuracies were close to ideal (supine: 0.40 mm, 0.221, weightbearing: 0.64 mm, 0.461) ( Table 3). Comparing these values with the actual accuracy measures for the PF and TF joints (Table 2) confirms the suspected roles of the object shape and imaging orientation in the model-based tracking methods accuracy (Martin et al, 2010).…”

Section: Patellofemoralsupporting

confidence: 71%

A novel multi-planar radiography method for three dimensional pose reconstruction of the patellofemoral and tibiofemoral joints after arthroplasty

Amiri

Wilson

Masri

et al. 2011

Journal of Biomechanics

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Section: Patellofemoralsupporting

confidence: 71%

A novel multi-planar radiography method for three dimensional pose reconstruction of the patellofemoral and tibiofemoral joints after arthroplasty

Amiri

Wilson

Masri

et al. 2011

Journal of Biomechanics

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“…Although multiple cadaver-based [35,39,42] as well as dynamic in vivo [34,36] validation studies on several joints have demonstrated the robustness of the volumetric model-based tracking technique to track dynamic bone motion in vivo, recent attempts at directly recording lumbar vertebral motion using DSX have been only partially successful [10,43]. An encouraging outcome, though, was the demonstrated viability of continuously recording lumbar vertebral motion with submillimeter precision (<0.3mm, 0.5 deg) [43].…”

Section: Discussionmentioning

confidence: 99%

“…The software suite then outputs 3D kinematics (three rotations and three translations) of the lumbar vertebrae and sacrum. More detailed descriptions are available elsewhere [34][35][36]39], Kinematic Analysis. Anatomical coordinate systems (ACS) [40] were defined for each vertebra by three mutually orthogonal axes-AP, ML, and superior-inferior (SI)-and located in the center of the vertebral body (Fig.…”

Section: Methodsmentioning

confidence: 99%

Capturing Three-Dimensional In Vivo Lumbar Intervertebral Joint Kinematics Using Dynamic Stereo-X-Ray Imaging

Aiyangar

Zheng

Tashman

et al. 2013

Journal of Biomechanical Engineering

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Availability of accurate three-dimensional (3D) kinematics of lumbar vertebrae is necessary to understand normal and pathological biomechanics of the lumbar spine. Due to the technical challenges of imaging the lumbar spine motion in vivo, it has been difficult to obtain comprehensive, 3D lumbar kinematics during dynamic functional tasks. The present study demonstrates a recently developed technique to acquire true 3D lumbar vertebral kinematics, in vivo, during a functional load-lifting task. The technique uses a high-speed dynamic stereo-radiography (DSX) system coupled with a volumetric model-based bone tracking procedure. Eight asymptomatic male participants performed weight-lifting tasks, while dynamic X-ray images of their lumbar spines were acquired at 30 fps. A custom-designed radiation attenuator reduced the radiation white-out effect and enhanced the image quality. High resolution CT scans of participants' lumbar spines were obtained to create 3D bone models, which were used to track the X-ray images via a volumetric bone tracking procedure. Continuous 3D intervertebral kinematics from the second lumbar vertebra (L2) to the sacrum (S1) were derived. Results revealed motions occurring simultaneously in all the segments. Differences in contributions to overall lumbar motion from individual segments, particularly L2-L3, L3-L4, and L4-L5, were not statistically significant. However, a reduced contribution from the L5-S1 segment was observed. Segmental extension was nominally linear in the middle range (20%-80%) of motion during the lifting task, but exhibited nonlinear behavior at the beginning and end of the motion. L5-S1 extension exhibited the greatest nonlinearity and variability across participants. Substantial AP translations occurred in all segments (5.0 ± 0.3 mm) and exhibited more scatter and deviation from a nominally linear path compared to segmental extension. Maximum out-of-plane rotations (<1.91 deg) and translations (<0.94 mm) were small compared to the dominant motion in the sagittal plane. The demonstrated success in capturing continuous 3D in vivo lumbar intervertebral kinematics during functional tasks affords the possibility to create a baseline data set for evaluating the lumbar spinal function. The technique can be used to address the gaps in knowledge of lumbar kinematics, to improve the accuracy of the kinematic input into biomechanical models, and to support development of new disk replacement designs more closely replicating the natural lumbar biomechanics.

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“…Using a dual fluoroscopic system, accuracy and precision were reported as 0.33 ± 0.81 mm in translation and 0.45 ± 0.65 in rotation for measuring THA motion , 0.2 ± 0.3 mm and 0.2 ± 0.8 for translation and rotation during functional activities of natural hips (Martin, et al, 2011), and 0.93 ± 1.13 mm in translation and 0.59 ± 0.82 in rotation for measuring natural hip kinematics , where radio-stereometric analysis was used to obtain a ground truth.…”

Section: Discussionmentioning

confidence: 99%

“…These may lead to reduced ROM after THA and the above-mentioned complications. However, although several studies have been reported to evaluate hip joint kinematics (Komistek, et al, 2002, Koyanagi, et al, 2011, Penney, et al, 2007, Martin, et al, 2011, 3D alignment of the natural or implanted hip joint in a standing posture has not been well quantified in relation to the entire lower extremity, as few practical methods have been reported to date.…”

Section: Introductionmentioning

confidence: 99%

Image registration method for assessing 3D hip alignment and implant position during standing posture

Kobayashi

Kai

Sakamoto

et al. 2014

JBSE

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The range of motion (ROM) resulting from total hip arthroplasty (THA) depends on the relative orientation of the femoral and acetabular components, and malpositioning of components is a possible cause of several complications. The purpose of this study was to validate a 3-dimensional (3D) lower extremity alignment assessment system (3D LAAS) for the measurement of alignment of natural and implanted hip joints and implant position with respect to the target bone with the subject in a standing position. Sawbone femur and pelvis and femoral and acetabular components of a total hip arthroplasty system were used. Three spherical markers were attached to each sawbone and each component to define the local coordinate system. Outlines of the 3D bone models and component computer-aided design models were projected onto extracted contours of the femur, pelvis, and implants in calibrated frontal and oblique X-ray images. The 3D position of each model was recovered by minimizing the differences between projected outlines and contours. Mean absolute errors were less than 1.27 ± 0.79 mm and 0.99 ± 0.52 for femur and pelvis, 1.64 ± 0.66 mm and 1.54 ± 0.39 for femoral and acetabular components, 1.58 ± 0.29 mm and 1.75 ± 0.69 for femur and femoral component, and 1.51 ± 0.49 mm and 1.24 ± 0.14 for pelvis and acetabular component, indicating that the 3D LAAS is applicable to measure the alignment of natural and implanted hip joints and implant position after THA.

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Model-Based Tracking of the Hip: Implications for Novel Analyses of Hip Pathology

Cited by 51 publications

References 26 publications

A novel multi-planar radiography method for three dimensional pose reconstruction of the patellofemoral and tibiofemoral joints after arthroplasty

A novel multi-planar radiography method for three dimensional pose reconstruction of the patellofemoral and tibiofemoral joints after arthroplasty

Capturing Three-Dimensional In Vivo Lumbar Intervertebral Joint Kinematics Using Dynamic Stereo-X-Ray Imaging

Image registration method for assessing 3D hip alignment and implant position during standing posture

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