<i>In Vivo</i>Healthy Knee Kinematics during Dynamic Full Flexion

Hamai, Satoshi; Morooka, Tatsuya; Dunbar, Nicholas J.; Miura, Hiromasa; Iwamoto, Yukihide; Banks, Scott A.

doi:10.1155/2013/717546

Cited by 51 publications

(46 citation statements)

References 19 publications

(32 reference statements)

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“…21,22 Known as the "screw-home" mechanism, the coupling between axial rotation and flexion-extension is also recognized in the human knee under passive conditions. 23,24 In-vivo, internal tibial rotation during deep knee flexion in humans has been reported 11,12 ; however, this pattern is not typically recognized during activities requiring greater knee extension such as walking. 19,20 We found internal rotation to be significantly correlated with knee flexion in the majority of dogs, and while a direct comparison cannot be made between species with our study design, it would appear that the "screw-home" mechanism is more prominent in dogs when compared to what has been observed in humans.…”

Section: Discussionmentioning

confidence: 99%

“…Normal kinematic parameters of the knee in humans vary widely over a range of different daily activities; unfortunately, equivalent information for the canine knee is sparsely reported. High‐precision 3D in‐vivo knee kinematics in normal dogs has been described in two experimental studies .…”

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confidence: 99%

“…9 Additionally, one of the leading causes of pelvic limb lameness in dogs is naturally occurring ACL degeneration, which is estimated to cost US pet owners $1.3 billion annually. 10 Normal kinematic parameters of the knee in humans vary widely over a range of different daily activities; 11,12 unfortunately, equivalent information for the canine knee is sparsely reported. Highprecision 3D in-vivo knee kinematics in normal dogs has been described in two experimental studies.…”

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confidence: 99%

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In‐vivo three‐dimensional knee kinematics during daily activities in dogs

Kim

Jones

Lewis

et al. 2015

Journal Orthopaedic Research

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The canine knee is morphologically similar to the human knee and thus dogs have been used in experimental models to study human knee pathology. To date, there is limited data of normal canine 3D knee kinematics during daily activities. The objective of this study was to characterize 3D in-vivo femorotibial kinematics in normal dogs during commonly performed daily activities. Using single-plane fluoroscopy, six normal dogs were imaged performing walk, trot, sit, and stair ascent activities. CT-generated bone models were used for kinematic measurement using a 3D-to-2D model registration technique. Increasing knee flexion angle was typically associated with increasing tibial internal rotation, abduction and anterior translation during all four activities. The precise relationship between flexion angle and these movements varied both within and between activities. Significant differences in axial rotation and coronal angulation were found at the same flexion angle during different phases of the walk and trot. This was also found with anterior tibial translation during the trot only. Normal canine knees accommodate motion in all planes; precise kinematics within this envelope of motion are activity dependent. This data establishes the characteristics of normal 3D femorotibial joint kinematics in dogs that can be used as a comparison for future studies.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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In‐vivo three‐dimensional knee kinematics during daily activities in dogs

Kim

Jones

Lewis

et al. 2015

Journal Orthopaedic Research

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“…The kinematics of the native knee have been widely investigated (21). Previous studies have reported several features of axial rotation in the native knee.…”

Section: Discussionmentioning

confidence: 99%

Intraoperative analysis of the kinematics of the native knee including two-dimensional translation of the femur using a navigation system : a cadaveric study

et al. 2019

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The aim of this cadaveric study was to evaluate the intraoperative kinematics of the native knee including two-dimensional translation of the femur using a navigation system. Eight native knees of 4 fresh-frozen whole-body cadavers were used for the study. The kinematics of each knee were analyzed intraoperatively using the navigation system. Although anterior-posterior translation could not be assessed directly, it could be calculated using a formula derived from the parameters in the navigation system. The native knee showed external rotation of the femur in early knee flexion, transient internal rotation in mid flexion, and gradual external rotation in late flexion. There was no marked change in the coronal rotation angle of the mechanical axis during knee flexion. The femoral center moved anteriorly in early knee flexion and posteriorly in late flexion. The distance moved in the medial-lateral direction was relatively smaller than that in the anterior-posterior direction. Two-dimensional translation of the surgical epicondylar axis showed a medial pivot-like motion. In this cadaveric study, the kinematics of the native knee, including two-dimensional translation of the femur, could be satisfactorily assessed intraoperatively using a navigation system. The intraoperative kinematics of the knee can be analyzed in more detail using this methodology.

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“…The 3D surface geometries of the femur, tibia and patella were reconstructed and aligned in the same manner as the 2D measurement technique. Model-image registration was performed to measure patellar kinematics, which were taken as reference values, using custom open-source software (JointTrack, Gainesville, FL, USA, www.sourceforge.net/projects/jointtrack) [20]. Differences in the root-mean-square (RMS) errors between biplane images with 3D bone models and sagittal plane patellar kinematics measurements were less than 2.0°and 3.0 mm, for in-plane rotation and translations, respectively.…”

Section: Methodsmentioning

confidence: 99%

Physiological sagittal plane patellar kinematics during dynamic deep knee flexion

Hamai

Dunbar

Morooka

et al. 2013

International Orthopaedics (SICOT)

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Purpose Lateral radiographic views can be easily taken and have reveal considerable information about the patella. The purpose of this study was to obtain sagittal plane patellar kinematics data through the entire range of knee flexion under weight-bearing conditions. Methods Patellar flexion angles relative to the femur and tibia and anterior-posterior and proximal-distal translations of the patella relative to the femur and tibia were measured from 0 to 165°knee flexion in nine healthy knees using dynamic radiographic images. Results The patella flexed relative to the femur and tibia by two thirds times and one third times the knee flexion angle, respectively. The patella translated in an arc relative to the femur and tibia as the knee flexed. In early flexion, the superior and centroid points translated anteriorly and then the patella translated posteriorly relative to the femur. All three points of the patella translated posteriorly relative to the tibia during a full range of flexion. An average of four and three millimetres proximal patellar translation relative to the tibia was demonstrated from 0 to 20°and 140 to 160°knee flexion, respectively.Conclusions Physiological sagittal plane patellar kinematics, including patellar flexion angles and translations relative to the femur and tibia, showed generally similar patterns for each subject. Measurements of dynamic radiographic images under weight-bearing activities may enhance the opportunity to identify patellar pathological conditions.

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In VivoHealthy Knee Kinematics during Dynamic Full Flexion

Cited by 51 publications

References 19 publications

In‐vivo three‐dimensional knee kinematics during daily activities in dogs

In‐vivo three‐dimensional knee kinematics during daily activities in dogs

Intraoperative analysis of the kinematics of the native knee including two-dimensional translation of the femur using a navigation system : a cadaveric study

Physiological sagittal plane patellar kinematics during dynamic deep knee flexion

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