Functional ultrasonography in the diagnosis of acute anterior cruciate ligament injuries: A field study

Palm, Hans‐Georg; Bergenthal, G.; Ehry, Peter; Schwarz, W.; Schmidt, Roland; Friemert, Benedikt

doi:10.1016/j.knee.2009.04.012

Cited by 27 publications

(57 citation statements)

References 14 publications

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“…It has a high sensitivity and specificity but requires the hands of an expert. 13 The advent of MRI technology in the early 1980s helped orthopedic surgeons in the treatment of knee disorders in several ways. In the early use of the technology, the improved initial diagnostic accuracy with preoperative MRI proved to be cost-effective in reducing unnecessary surgical interventions and altering treatment plans.…”

Section: Discussionmentioning

confidence: 99%

Diagnostic accuracy of magnetic resonance imaging in detecting anterior cruciate ligament injuries

Ahmed¹,

Razzaque²,

Kaleem³

et al. 2017

Med J Indones

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Section: Discussionmentioning

confidence: 99%

Diagnostic accuracy of magnetic resonance imaging in detecting anterior cruciate ligament injuries

Ahmed¹,

Razzaque²,

Kaleem³

et al. 2017

Med J Indones

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“…Dynamic US has also been used to confirm laxity and indirectly assess the integrity of the ACL. Ultrasound‐guided anterior drawer and Lachman tests have been reported in the literature but require 2 examiners and can be challenging to perform. Dynamic tests require patients to relax, which can be difficult in acutely injured knees.…”

Section: Discussionmentioning

confidence: 99%

“…Direct US visualization of the ACL is challenging, but US is increasingly being used as an extension of the physical examination on the sidelines, in training rooms, and in clinics. Ultrasound can be used to objectively measure the degree of laxity when combined with functional testing (ie, Lachman and anterior drawer tests) . These US‐guided functional tests require 2 examiners, and it can be difficult to maintain the probe position while imaging the tibia, which may limit the reproducibility of these functional tests.…”

mentioning

confidence: 99%

Validity of Indirect Ultrasound Findings in Acute Anterior Cruciate Ligament Ruptures

Mautner

Sussman

Nanos³

et al. 2018

J of Ultrasound Medicine

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Objectives-Ultrasound (US) is increasingly being used as an extension of the physical examination on the sidelines, in training rooms, and in clinics. Anterior cruciate ligament (ACL) injury in sport is common, but the literature on US findings after acute ACL rupture is limited. Three indirect US findings of ACL rupture have been described, and this study assessed the validity of these indirect signs.Methods-Patients with an acute knee injury (<6 weeks) underwent US examinations to determine whether there was evidence of a femoral notch sign, posterior cruciate ligament wave sign, or capsular protrusion sign. Ultrasound findings were compared to magnetic resonance imaging.Results-Sixty-nine patients were included (53 with ACL tears and 16 control patients). The posterior cruciate ligament sign had the highest sensitivity (84.9%), and the notch sign had the highest specificity (93.8%). If 2 or 3 of the signs were positive, the sensitivity was 86.8%, and the specificity was 87.5%.Conclusions-A US examination is an easy-to-perform and noninvasive test, and the 3 indirect signs of an acute ACL tear had high positive predictive values ranging from 91.8% to 96.8%.

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“…For another, ultrasound promises accurate diagnoses of many medical disorders of musculoskeletal soft tissues. One such disorder is the rupture of the ante-rior cruciate ligament [2,3]. Even if MRI remains the more popular modality for diagnosing ACL ruptures, ultrasound may help improve the outcome of patients with ACL injuries, that is, if it can be used to diagnose partial ruptures or monitor the ACL during treatment.…”

Section: Introductionmentioning

confidence: 99%

“…Both methods have been able to accurately diagnose ACL ruptures. Indirect methods have achieved 85% -91% sensitivity and 80% -100% specificity [2][3][4][5][6]. Direct methods have achieved perfect accuracy in one study on nine knees [7] and 76% sensitivity and 100% specificity in another study on 60 knees [8].…”

Section: Introductionmentioning

confidence: 99%

An ultrasound elastography method for examining the anterior cruciate ligament

Cochran¹,

Gao

2013

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We introduce an ultrasound elastography method for examining the ACL. It consisted of imaging the distal ACL while applying a drawer test and analyzing the resulting displacement and strain maps, where a map refers to how a variable is distributed spatially throughout an image. Our method was applied to healthy knees of cadaveric sheep to determine whether 1) our method can consistently generate displacements and strain maps in healthy ACLs; 2) displacement and strain maps are repeatable; and 3) healthy ACLs experience similar maps. We found that our method could consistently provide displacements and strain maps of the distal ACL region. Moreover, these ACLs experienced displacement and strain maps that were positively-correlated between trials, knees, and specimens. This correlation was statistically significant between pairs of trials and between left and right knees (p < 0.05). These results suggest that the maps are indeed repeatable and similar for healthy ACLs.

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Functional ultrasonography in the diagnosis of acute anterior cruciate ligament injuries: A field study

Cited by 27 publications

References 14 publications

Diagnostic accuracy of magnetic resonance imaging in detecting anterior cruciate ligament injuries

Diagnostic accuracy of magnetic resonance imaging in detecting anterior cruciate ligament injuries

Validity of Indirect Ultrasound Findings in Acute Anterior Cruciate Ligament Ruptures

An ultrasound elastography method for examining the anterior cruciate ligament

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