MR Assessment of Movement and Morphologic Change in the Menisci during Knee Flexion

Kawahara, Yasuhiro; Uetani, Masataka; Fuchi, K.; Eguchi, Hironori; Hayashi, Kuniaki

doi:10.3109/02841859909175596

Cited by 34 publications

(55 citation statements)

References 20 publications

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“…11,12,[21][22][23] This corresponds with the movement of the contact centroid during flexion. The amount of movement of the meniscus and the contact centroid was similar, indicating that our results have likely captured the effects of posterior roll of the femur on the tibial plateau during flexion.…”

Section: Discussionmentioning

confidence: 99%

“…11,12,[21][22][23] Von Eisenhart-Rothe et al found that meniscal movement in ACL-deficient knees is similar to that in normal knees even though bone kinematics are different. 12 We only found a difference in meniscal translation between injured and uninjured knees at one point (#6), even though the contact centroid translation was significantly different in ACLdeficient knees.…”

Section: Discussionmentioning

confidence: 99%

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MRI analysis of in vivo meniscal and tibiofemoral kinematics in ACL‐deficient and normal knees

Shefelbine

Benjamin

Lee

et al. 2006

Journal Orthopaedic Research

108

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The objectives of this study were to analyze simultaneously meniscal and tibiofemoral kinematics in healthy volunteers and anterior cruciate ligament (ACL)-deficient patients under axial load-bearing conditions using magnetic resonance imaging (MRI). Ten healthy volunteers and eight ACL-deficient patients were examined with a high-field, closed MRI system. For each group, both knees were imaged at full extension and partial flexion ($458) with a 125N compressive load applied to the foot. Anteroposterior and medial/lateral femoral and meniscal translations were analyzed following three-dimensional, landmark-matching registration. Interobserver and intraobserver reproducibilities were less than 0.8 mm for femoral translation for image processing and data analysis. The position of the femur relative to the tibia in the ACL-deficient knee was 2.6 mm posterior to that of the contralateral, normal knee at extension. During flexion from 08 to 458, the femur in ACL-deficient knees translated 4.3 mm anteriorly, whereas no significant translation occurred in uninjured knees. The contact area centroid on the tibia in ACL-deficient knees at extension was posterior to that of uninjured knees. Consequently, significantly less posterior translation of the contact centroid occurred in the medial tibial condyle in ACL-deficient knees during flexion. Meniscal translation, however, was nearly the same in both groups. Axial loadbearing MRI is a noninvasive and reproducible method for evaluating tibiofemoral and meniscal kinematics. The results demonstrated that ACL deficiency led to significant changes in bone kinematics, but negligible changes in the movement of the menisci. These results help explain the increased risk of meniscal tears and osteoarthritis in chronic ACL deficient knees. ß

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

MRI analysis of in vivo meniscal and tibiofemoral kinematics in ACL‐deficient and normal knees

Shefelbine

Benjamin

Lee

et al. 2006

Journal Orthopaedic Research

108

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“…These studies were performed with open MRI systems (0,5 T or less), and to the best of our knowledge, there isn't any study done with closed system MRI (1.5 T or more) while the knee is in flexion position. Besides, kinematic knee MRI studies are mostly done to evaluate patellofemoral joint discordance or to differentiate partial anterior cruciate ligament (ACL) rupture from total rupture, and rarely tried in meniscal lesions (7)(8)(9)(10)(11)(12)(13)(14)(15). The first kinematic MRI study to evaluate meniscal lesions and cruciate ligament lesions was done by Niitsu et al (10).…”

Section: Discussionmentioning

confidence: 99%

“…In our study, the examinations are performed with closed MRI system which has high magnetic field power (1.5 T) and high contrast resolution with an only one additional KFA sequence in order not to cause patient discomfort or too increased ex- amination time. In most of the kinematic MRI studies (7,8,(10)(11)(12)(13)(14)(15), a flexion angle of 40-50˚ could be maintained, while in a study (9) a flexion angle reaching up to 90˚ was achieved. In our study, we could maintain a flexion angle between 30-50˚ (mean: 40˚), and this was the main limitation.…”

Section: Discussionmentioning

confidence: 99%

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The Value of Flexion MRI Acquisition in Detection of Meniscal Tears

et al. 2010

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Quantifying meniscal kinematics in dogs

Park

Banks

Pozzi

2017

Journal Orthopaedic Research

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The dog has been used extensively as an experimental model to study meniscal treatments such as meniscectomy, meniscal repair, transplantation, and regeneration. However, there is very little information on meniscal kinematics in the dog. This study used MR imaging to quantify in vitro meniscal kinematics in loaded dog knees in four distinct poses: extension, flexion, internal, and external rotation. A new method was used to track the meniscal poses along the convex and posteriorly tilted tibial plateau. Meniscal displacements were large, displacing 13.5 and 13.7 mm posteriorly on average for the lateral and medial menisci during flexion (p = 0.90). The medial anterior horn and lateral posterior horns were the most mobile structures, showing average translations of 15.9 and 15.1 mm, respectively. Canine menisci are highly mobile and exhibit movements that correlate closely with the relative tibiofemoral positions. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1710-1716, 2018.

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MR Assessment of Movement and Morphologic Change in the Menisci during Knee Flexion

Abstract: Knee flexion normally leads to posterior movement and shortening of the a.p. diameter of the menisci, which may be related to the positioning and curvature of femoral condyles at the femorotibial contact point at knee flexion.

Cited by 34 publications

References 20 publications

MRI analysis of in vivo meniscal and tibiofemoral kinematics in ACL‐deficient and normal knees

MRI analysis of in vivo meniscal and tibiofemoral kinematics in ACL‐deficient and normal knees

The Value of Flexion MRI Acquisition in Detection of Meniscal Tears

Quantifying meniscal kinematics in dogs

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