New Findings in Six-degrees-of-freedom Kinematics during Stationary Stepping in Patients with Knee Osteoarthritis

Hoshi, Kenji; Watanabe, Goro; Kurose, Yasuo; Tanaka, Ryuji

doi:10.4172/2329-9096.1000381

Cited by 3 publications

(3 citation statements)

References 34 publications

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“…Farrokhi et al 17 ) used dynamic stereo X-rays to characterize knee kinematics during gait in patients with KOA, and found reduced flexion and internal/external rotation excursion and increased total abduction/adduction excursion in the stance phase. Stationary stepping in patients with severe KOA showed knee adduction and lateral translation motion in the early stance phase 18 , 19 ) . Specific kinematics in patients with medial KOA during squatting involved tibial external rotation, posterior translation, and adduction 20 ) .…”

Section: Discussionmentioning

confidence: 99%

Three-dimensional volume and shape of the infrapatellar fat pad during quasi-static knee extension from 30° to 0°: comparisons of patients with osteoarthritic knees and young, healthy individuals

Okita¹,

Miura²,

Morimoto³

et al. 2023

J Phys Ther Sci

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[Purpose] Previous studies suggest that the infrapatellar-fat-pad is affected by aging or knee osteoarthritis, and that the infrapatellar-fat-pad in knee osteoarthritis cases may be associated with limited mobility during knee movement. This study aimed to determine changes in the shape and volume of the infrapatellar-fat-pad between 30° and 0° of knee extension in knee osteoarthritis cases and in young, healthy individuals, and to characterize differences in patellar mobility, patellar tendon mobility, and length between the groups. [Participants and Methods] We created 3D models of the infrapatellar-fat-pad, the patellar tendon, and bones using sagittal MRI with the knee at 30° and 0°. The following four parameters were determined: (1) movement of the infrapatellar-fat-pad; (2) infrapatellar-fat-pad volume; (3) angle and surface length of the patellar tendon; and (4) patellar movement. [Results] Compared with the knee osteoarthritis group, the healthy group showed (1) reduced anterior movement of the infrapatellar-fat-pad; (2) smaller volume changes only in the infero-postero-lateral portion; and (3) no changes in the angle of the patellar tendon to the tibial plateau between 30° to 0°. [Conclusion] In conclusion, between 30° and 0°, (1) the infrapatellar-fat-pad in patients with knee osteoarthritis exhibited less anterior movement, and (2) the patellar tendon angle was diminished in patients with knee osteoarthritis compared with those of young-healthy knees.

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Section: Discussionmentioning

confidence: 99%

Three-dimensional volume and shape of the infrapatellar fat pad during quasi-static knee extension from 30° to 0°: comparisons of patients with osteoarthritic knees and young, healthy individuals

Okita¹,

Miura²,

Morimoto³

et al. 2023

J Phys Ther Sci

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“…These researchers tried to exclude osteophytes by connecting the medial contour of the cortical bone of the tibia and femur [2]. This method may produce an error on longitudinal measurements of the MME due not only to the 2D method used but also to potential longitudinal changes in the femorotibial lateral translation [22] or lateral translation and adduction [23, 24] of the tibia on the coronal plane. This study measured the MME using a reference point on the contour of the tibial condyle 10 mm below the tibial plateau plane where there was less possibility to influence osteophytes.…”

Section: Discussionmentioning

confidence: 99%

High validity of measuring the width and volume of medial meniscal extrusion three-dimensionally using an MRI-derived tibial model

et al. 2020

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Background: Medial meniscal extrusion (MME) is an important marker of knee osteoarthritis (KOA) progression. The purposes of this study were: 1) to determine whether there are morphological differences between CT-and MRIderived tibial plateau models; and 2) to determine whether measurement of MME volume and width using an MRIderived tibial model is as accurate as measurements on a CT-derived tibial model. Methods: This was a cross-sectional study that enrolled ten participants with medial KOA (Kellgren-Lawrence grade 1 to 3). Primary outcome was surface difference of the medial tibial plateau between CT-and MRI-derived models. Furthermore, volume and cross-sectional area of the medial tibial plateau were compared between CT-and MRIderived models. Measurements of MME volume and width were compared between CT-and MRI-derived tibial models. Results: Minimal and maximal surface differences of the medial tibial plateau between the CT-and MRI-derived models were − 0.15 [− 0.44, 0.14] mm (mean [95% confidence interval]) and 0.24 [− 0.09, 0.57] mm, respectively. There were no significant differences in volume and cross-sectional area of the medial tibial plateau between CTand MRI-derived tibial models. The MME volumes measured on CT-and MRI-derived models were 942.6 [597.7, 1287.6] mm 3 and 916.2 [557.9, 1274.6] mm 3 , respectively (p = 0.938). The MME widths measured on CT-and MRIderived models were 4.2 [1.9, 6.5] mm and 4.5 [2.2, 6.9] mm, respectively (p = 0.967). Conclusions: CT-and MRI-derived models of the medial tibial plateau did not show significant morphological differences. Both CT-and MRI-derived tibia can be used as a reference to measure MME in early-to-moderate medial KOA.

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“…On the MRI images, we manually segmented edges of the cortical bone of the femur, tibia using manual segmentation software (3D-DOCTOR, Able Software Corp., Lexington, MA), created 3D polygonal surface models [ 20 ] ( Fig. 1 ).…”

Section: Methodsmentioning

confidence: 99%

Repeatability of quantification of extrusion of the medial meniscus in knee osteoarthritis using three-dimensional models

Watanabe

Hoshi

Sadakiyo³

et al. 2020

Osteoarthritis and Cartilage Open

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New Findings in Six-degrees-of-freedom Kinematics during Stationary Stepping in Patients with Knee Osteoarthritis

Cited by 3 publications

References 34 publications

Three-dimensional volume and shape of the infrapatellar fat pad during quasi-static knee extension from 30° to 0°: comparisons of patients with osteoarthritic knees and young, healthy individuals

Three-dimensional volume and shape of the infrapatellar fat pad during quasi-static knee extension from 30° to 0°: comparisons of patients with osteoarthritic knees and young, healthy individuals

High validity of measuring the width and volume of medial meniscal extrusion three-dimensionally using an MRI-derived tibial model

Repeatability of quantification of extrusion of the medial meniscus in knee osteoarthritis using three-dimensional models

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