Magnetic Resonance Imaging of the Collateral Ligaments and the Anatomic Quadrants of the Knee

Beall, Douglas P.; Googe, J. David; Moss, Jason T.; Ly, Justin Q.; Greer, Barry J.; Stapp, Annette M.; Martin, Hal David

doi:10.1016/j.mric.2007.02.010

Cited by 12 publications

(25 citation statements)

References 47 publications

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“…5,6 Soft tissues can be directly evaluated by magnetic resonance imaging (MRI), which is a commonly used imaging modality for diagnosis and grading of collateral ligament injuries. [7][8][9] However, only static anatomical information is provided and so there is potential to underestimate the true extent of the injury. 10 In TKA, assessment of laxity is a routine component of many soft tissue balancing techniques and is often used to determine the need for a soft tissue release, 11,12 particularly for large deformities that are judged to be uncorrectable.…”

Section: Introductionmentioning

confidence: 99%

Standardising the clinical assessment of coronal knee laxity

Clarke

Wilson

Wearing

et al. 2012

Proc Inst Mech Eng H

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Clinical laxity tests are used for assessing knee ligament injuries and for soft tissue balancing in total knee arthroplasty. This study reports the development and validation of a quantitative technique of assessing collateral knee laxity through accurate measurement of potential variables during routine clinical examination. The hypothesis was that standardisation of a clinical stress test would result in a repeatable range of laxity measurements. Non-invasive infrared tracking technology with kinematic registration of joint centres gave real-time measurement of both coronal and sagittal mechanical tibiofemoral alignment. Knee flexion, moment arm and magnitude of the applied force were all measured and standardised. Three clinicians then performed six knee laxity examinations on a single volunteer using a target moment of 18 Nm. Standardised laxity measurements had small standard deviations (within 1.1°) for each clinician and similar mean values between clinicians, with the valgus laxity assessment (mean of 3°) being slightly more consistent than varus (means of 4° or 5°). The manual technique of coronal knee laxity assessment was successfully quantified and standardised, leading to a narrow range of measurements (within the accuracy of the measurement system). Minimising the subjective variables of clinical examination could improve current knowledge of soft tissue knee behaviour.

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Section: Introductionmentioning

confidence: 99%

Standardising the clinical assessment of coronal knee laxity

Clarke

Wilson

Wearing

et al. 2012

Proc Inst Mech Eng H

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show abstract

“…The MCL injuries may be classifi ed into isolated or combined injuries. The most frequently associated lesions are ACL tears, medial meniscal lesions, meniscocapsular separations, medial retinaculum teas, disruption which originates from the femoral condyle ( MFL ) and the meniscotibial ligament ( MTL ) which is shorter, and it extends from the inferior margin of the meniscus to tibial cortex inferior to the joint line of the posteromedial joint capsule, and tears of pes anserinus [ 12 ]. Commonly, the MCL injuries are classifi ed into the following three types or grades: sprain, partial tear, and complete tear.…”

Section: Acute Tearmentioning

confidence: 99%

“…It corresponds to ligamentous fi bers that are stretched but still in continuity [ 12 ]. A MCL sprain is typically associated with pain but not with medial laxity on physical examination.…”

Section: Sprain With Intact Fibersmentioning

confidence: 99%

“…Tears located at the femoral origin are thereby the most common type of tears and are often associated with a small bony avulsion fragment [ 12 ]. On MR images, an avulsed bone fragment from the femoral epicondyle may be seen together with subchondral edema (Fig.…”

Section: Complete Tearmentioning

confidence: 99%

“…Tears from the femoral origin are the most common type of tears and are often associated with a bony avulsion fragment and may be treated with reattachment to the femur (Fig. 3.21 ) [ 12 ]. Ligament disruption in the midportion of the ligament is typically repaired with end-to-end suturing [ 12 ].…”

Section: Mri Postoperative Findingsmentioning

confidence: 99%

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