Pathogenesis of Anterior Cruciate Ligament Injury

Childs, Sharon G.

doi:10.1097/00006416-200207000-00006

Cited by 20 publications

(12 citation statements)

References 19 publications

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“…It is reported that more than 200,000 ACL ruptures occur every year in the United States (Childs, 2002), predominately affecting individuals aged between 15 and 44 (Smith et al, 1993). Based on animal models, it is known that transection of the ACL increases the risk for initiation of cartilage breakdown and leads to a degeneration of the structures surrounding the knee joint (Herzog et al, 1993;Brandt et al, 1991;Galois et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Reduced knee joint moment in ACL deficient patients at a cost of dynamic stability during landing

Oberländer

Brüggemann

Höher

et al. 2012

Journal of Biomechanics

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Section: Introductionmentioning

confidence: 99%

Reduced knee joint moment in ACL deficient patients at a cost of dynamic stability during landing

Oberländer

Brüggemann

Höher

et al. 2012

Journal of Biomechanics

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“…In the previous studies, about 8 patients per 10,000 people aged 15 to 44 experienced an ACL injury [5]. In United States, 250,000 patients with ACL injury were diagnosed for a year [3]. ACL injury can cause joint instability and functional instability can be induced by aberrant neuromuscular regulation due to reduced proprioceptive sensation in patients with an ACL injury.…”

Section: Introductionmentioning

confidence: 99%

Correlation between dynamic postural stability and muscle strength, anterior instability, and knee scale in anterior cruciate ligament deficient knees

Park

Kim

Yoo

et al. 2010

Arch Orthop Trauma Surg

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Aim The purpose of this study was to assess the correlations between dynamic postural stability and muscle strength, anterior instability, and knee scores in anterior cruciate ligament (ACL) deWcient knees. Method We examined 40 male patients with ACL injury prior to surgery. Maximal torques of Xexors and extensors of the injured knee at 60 and 180°/s were evaluated using an isokinetic testing device. Anterior translations of the tibia were measured using a KT-2000 arthrometer, and dynamic postural stabilities were measured during singleleg stance using the Biodex Stability System (BSS). Knee statuses were evaluated using Lysholm and International Knee Documentation Committee (IKDC) knee scores. Correlations between dynamic postural stability and muscle strength, anterior instability, and knee scores were determined. Results SigniWcant correlations were found between maximal torques of the extensor of injured knees at 60 and 180°/s (r = ¡0.52, p = 0.048 and r = ¡0.46, p = 0.019, respectively) and dynamic postural stability, and maximal torques of Xexors of injured knees showed similar relations (r = ¡0.51, p = 0.0048 and r = ¡0.47, p = 0.016, respectively). Lysholm and IKDC knee scores were also found to be correlated with dynamic postural stability (r = ¡0.49, p = 0.001 and r = ¡0.52, p = 0.005, respectively). However, no correlation was found between grade of anterior translation measured using the KT-2000 arthrometer and dynamic postural stability (p = 1.0). Conclusion Dynamic postural stability determined using the BSS appears to be inXuenced by muscle strength, as determined by isokinetic testing, but not with grade of anterior translation measured using a KT-2000 arthrometer. Subjective knee scores appear to improve in parallel with dynamic postural stability.

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“…Injury to the ACL can occur secondary to excessive valgus stress, forced external rotation of the femur on a fixed tibia, andhyperextension. [6][7][8] . the most important finding of the present study is that there were bony morphological differences between ACL-insufficiency patients and ACLintact subjects.…”

Section: Discussionmentioning

confidence: 99%

Magnetic resonance imaging based anthropometric study of knee joint in anterior cruciate ligament insufficient knees

Sandeep¹,

Rao²

2018

Int. J. Orthop. Sci.

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Purpose: The objective of this study was to evaluate multiple morphological features on MR images in patients with ACL insufficient knees. Methods: Magnetic resonance imaging (MRI) of the knee of 40 anterior cruciate ligament insufficient patients and 20 anterior cruciate ligament intact patients who came to Katuri Medical College and Hospital, Guntur, between May 2017 and April 2018 were reviewed. Their intercondylar notch, femoral condyles dimensions and tibial slopes were measured using MRI. Results: The ACL insufficient knees and ACL intact knees were comparable in terms of intercondylar notch width. Lateral femoral condyle height and transepicondylar axis are more in ACL insufficient knees. Medial posterior tibial slope is more than Lateral posterior tibial slope in both ACL insufficient knees and ACL intact knees. Conclusion:The ACL insufficient patients have more Lateral femoral condyle width, intercondylar notch width, intercondylar notch height compared to ACL intact knees. ACL-ruptured patients had statistically significant smaller heights of femur's lateral condyle. MTS is more than LTS in both ACL insufficiency patients and ACL intact patients.Keywords: Magnetic resonance imaging, anthropometric study, knee joint, anterior cruciate ligament IntroductionThe dimensions of the intercondylar notch are such that there is little space not filled by the cruciate ligaments. It is this intimate relationship between the cruciate ligaments and the notch that may give rise to impingement of these structures following anterior cruciate ligament (ACL) reconstruction. Impingement of the ACL on the inter condylar notch will occur if the notch is steno tic, the ACL is relatively large, or a combination of both. This impingement will jeopardize the surgical repair. Magnetic resonance imaging (MRI) has been proven as the gold standard method of choice for non-invasive evaluation of the ACL. Multiple studies have been executed in which measurements were taken on MR images to identify the characteristics of the ACL and its surroundings [1, 2] . Furthermore, MRI has been utilized during the evaluation of knee kinematics with and without an ACL rupture [3,4] . To the best of the authors' knowledge, an assessment of multiple morphological features and their risk for ACL rupture has not been performed. Some studies have investigated the morphological features on the femoral side, while others have studied those on the tibial side. As such, the objective of this study was to evaluate multiple morphological features on both the femoral and tibial sides of the knee on MR imaging in patients with and without ACL rupture. In this way, it is possible to analyze the tibial and femoral morphological features both separately and combined and to evaluate a possible morphological relationship. The hypothesis of this study was that multiple individual and combined morphological features that confer a higher risk of sustaining an ACL rupture could be identified. This complete assessment of multiple morphological features and the...

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Pathogenesis of Anterior Cruciate Ligament Injury

Cited by 20 publications

References 19 publications

Reduced knee joint moment in ACL deficient patients at a cost of dynamic stability during landing

Reduced knee joint moment in ACL deficient patients at a cost of dynamic stability during landing

Correlation between dynamic postural stability and muscle strength, anterior instability, and knee scale in anterior cruciate ligament deficient knees

Magnetic resonance imaging based anthropometric study of knee joint in anterior cruciate ligament insufficient knees

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