Posterolateral aspect of the knee: improved MR imaging with a coronal oblique technique.

Yu, Joseph S.; Salonen, David; Hodler, J; Haghighi, Parviz; Trudell, Debra; Resnick, Donald

doi:10.1148/radiology.198.1.8539378

Cited by 142 publications

(110 citation statements)

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“…In that study, using conventional MRI sequences, a surgical popliteofibular ligament injury went unnoticed on MRI in three cases. A thin-slice coronal oblique MRI sequence improved evaluation of the PLC [34]. In 20 knees with surgically verified Grade 3 PLC injuries evaluated with an MRI protocol including thinslice coronal oblique images through the fibular head, LaPrade et al [12] found MRI to be accurate in diagnosing FCL, popliteus, and popliteofibular ligament injury in 95%, 90%, and 68% of cases, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…As a static study, MRI also has inherent limitations for diagnosing clinically relevant instability, and partial tears or edema revealed on MRI may not correlate with laxity [32]. High-power magnets [1,12], thinslice scans [12], and coronal oblique technique [1,12,34] have improved MRI of the PLC, but access to this technology and experienced musculoskeletal radiologists may not be universally available, particularly in community hospitals or clinics [23].…”

Section: Introductionmentioning

confidence: 99%

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Can Stress Radiography of the Knee Help Characterize Posterolateral Corner Injury?

Gwathmey

Tompkins

Gaskin

et al. 2012

Clinical Orthopaedics &Amp; Related Research

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Background Conventional MRI is limited for characterizing the posterolateral corner of the knee due to the region's anatomic variability and complexity; further, MRI is a static study and cannot demonstrate pathologic laxity. Stress radiography may provide additional information about instability. Questions/purposes We therefore (1) correlated varus stress radiography with MRI findings, (2) compared opening in patients who underwent surgical posterolateral corner stabilization versus those who did not, and (3) determined whether stress radiography findings could supplement MRI for making treatment decisions. Patients and Methods We retrospectively studied 26 patients (27 knee injuries) and correlated lateral compartment opening on varus stress radiography with severity of posterolateral corner injury on MRI. We compared radiographic findings in 18 patients with complete injuries who underwent posterolateral corner stabilization with five who did not. Results A complete posterolateral corner injury on MRI was associated with an average of 18.6 mm (10.0-36.5 mm) of varus opening versus 12.8 mm (7.5-17.0 mm) in partial injuries. Opening in operative cases that underwent stabilization was 16.5 mm (11.0-36.5 mm) versus 11.0 mm (7.5-13.5 mm) for those that did not. Ten of 15 partial injuries underwent stabilization, for which the varus opening was 13.6 mm (11.0-17.0 mm). Average varus opening in partial injuries that did not undergo stabilization was 11.0 mm (7.5-13.5 mm). Conclusions Varus stress radiography correlated to MRI findings for posterolateral corner injury. The injuries we treated with reconstruction were associated with increased varus opening. In patients with partial posterolateral corner injury on MRI, we used degree of opening on varus stress radiography to aid the decision for stabilization.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Can Stress Radiography of the Knee Help Characterize Posterolateral Corner Injury?

Gwathmey

Tompkins

Gaskin

et al. 2012

Clinical Orthopaedics &Amp; Related Research

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“…Angling the coronal plane is thought to decrease volume averaging that could potentially obscure structures. Detection of the fabellofibular ligament seems to be dependent on positioning of the knee rather than an oblique imaging plane [69].…”

Section: Fibular Collateral Ligamentmentioning

confidence: 95%

“…In addition, the presence of the arcuate and fabellofibular ligaments has been shown to be inconsistent in cadaveric studies [69].…”

Section: Fibular Collateral Ligamentmentioning

confidence: 99%

Magnetic resonance imaging in the evaluation of ligament injuries

Farooki¹,

Seeger²

1999

Skeletal Radiology

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Magnetic resonance imaging has had a dramatic effect on the means by which we diagnose ligament injuries. Tears resulting from either acute trauma or overuse can be detected noninvasively, directing appropriate therapy be it conservative or surgical. For the elite athlete, earlier diagnosis leads to earlier intervention, or alternatively, a normal MRI examination can result in an earlier return to play. While MRI is accepted for the diagnosis of certain injuries such as complete tears of the cruciate ligaments of the knee, other injuries, such as partial cruciate ligament tears or tears of the intercarpal ligaments of the wrist, remain controversial.

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“…Some advocate the use of a coronal oblique plane, oriented parallel to the direction of the popliteus tendon, with one study showing visualization of the popliteofibular tendon improving from 8% to 53% of the knees. 63 Another study compared coronal oblique fat-saturated T2 with isotropic three-dimensional water excitation double-echo steady state (WE-DESS) sequences. The latter sequence improved the identification of the popliteofibular ligament from 71% to 91% of cases.…”

Section: 62mentioning

confidence: 99%

Posterolateral and Posteromedial Corner Injuries of the Knee

Geiger¹,

Chang²,

Pathria³

et al. 2014

Magnetic Resonance Imaging Clinics of North America

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Posterolateral aspect of the knee: improved MR imaging with a coronal oblique technique.

Abstract: Depiction of the structures in the posterolateral aspect of the knee was optimal on coronal oblique images. We advocate obtaining coronal oblique T2-weighted images in patients with either posterolateral knee pain or suspected injury to the posterolateral ligamentous structures.

Cited by 142 publications

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Can Stress Radiography of the Knee Help Characterize Posterolateral Corner Injury?

Can Stress Radiography of the Knee Help Characterize Posterolateral Corner Injury?

Magnetic resonance imaging in the evaluation of ligament injuries

Posterolateral and Posteromedial Corner Injuries of the Knee

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