MRI analysis of the component–bone interface after TKA

Heyse, Thomas J.; Chong, Le Roy; Davis, J.; Boettner, Friedrich; Haas, Steven B.; Potter, Hollis G.

doi:10.1016/j.knee.2011.05.011

Cited by 36 publications

(36 citation statements)

References 18 publications

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“…[1][2][3] However, the diagnostic accuracy and efficiency of MRI has been compromised by the susceptibility artefacts caused by metal implants. 4,5 Briefly, susceptibility artefacts result from local inhomogeneity of the main magnetic field, which will cause spin dephasing and frequency shifting of the tissue structures surrounding the metal implants. Intravoxel dephasing decreases the signal received and results in hypointense areas on the MR images.…”

mentioning

confidence: 99%

Metal artefact reduction in MRI at both 1.5 and 3.0 T using slice encoding for metal artefact correction and view angle tilting

Reichert¹,

Ai²,

Morelli³

et al. 2015

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mentioning

confidence: 99%

Metal artefact reduction in MRI at both 1.5 and 3.0 T using slice encoding for metal artefact correction and view angle tilting

Reichert¹,

Ai²,

Morelli³

et al. 2015

BJR

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“…Damage with contact to surface, deformity Cartilage [30] 0 Intact 1 Softening (signal irregularity) or swelling 2…”

Section: Resultsmentioning

confidence: 99%

“…In comparison with conventional implants, it has been shown that there is more confidence, less variability, and greater inter-observer agreement with MRI evaluation of periprosthetic structures after TKA with zirconium components [24]. It is reasonable to assume that MRI will also be diagnostic after UKA with CoCrMo femoral components, but that increased artifact of the signal might interfere to some extent with the evaluation of periprosthetic tissues and especially the interface between bone and implant as has been shown for TKA [30,31].…”

Section: Discussionmentioning

confidence: 99%

“…Potter et al reported on a number of cases where MRI proved helpful in evaluating painful or non-functional TKA (arthrofibrosis, synovitis, loosening, chronic infection, osteolysis, particle disease, evaluation of peroneal nerve palsy) [21]. There are two reports of successful evaluation of radiographically-suspected periprosthetic osteolysis following TKA in small cohorts (11 and 2 patients) [33,34] and a systemic evaluation of the component-bone interface [30]. Recently, MRI has been advocated for assessment of in vivo kinematics after TKA [25,35].…”

Section: Discussionmentioning

confidence: 99%

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MRI after unicondylar knee arthroplasty: The preserved compartments

et al. 2012

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“…CoCr arthroplasties will generate intra-voxel dephasing, limiting evaluation of the interfaces. Zirconium components generate less signal artefact due to zirconium's lower magnetic moment [17,18] and produced superior results in TKA patients in comparison with conventional implants [11,18]. We suppose that MRI could also be used as a diagnostic tool after PFR with CoCr femoral components, but there would be greater interference with evaluation of the interface due to signal artefact.…”

Section: Discussionmentioning

confidence: 99%

MRI After Patellofemoral Replacement: the Component–Bone Interface and Rotational Alignment

et al. 2013

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Background: In an earlier paper, it was shown that tailored magnetic resonance imaging (MRI) allows for reproducible analysis of the preserved knee joint structures after patellofemoral replacement (PFR). Purposes: This pilot study investigates to what degree MRI could produce reliable assessment of the implant-bone interface of femoral and patellar components and rotational alignment following PFR. Methods: MRI tailored for reduction of metallic artefacts was performed in seven patients who had undergone PFR. Two independent investigators evaluated the implant-bone interface at femoral and patellar components and the rotational alignment of the femoral component. They also assessed their degree of confidence in evaluation using a five-point scale. The inter-observer reliability was determined. Results: Implant-induced MRI artefact was barely observed and there was no interference with component-bone interface evaluation. There was excellent inter-observer reliability, inter-observer agreement, and confidence for the implant-bone interface at femoral and patellar components and for rotational alignment. The applied score for the interface was found to be reliable. Conclusion: Tailored MRI allows reproducible analysis of the implant-bone interface and of rotational alignment of the femoral component in patients who have had PFR. It might prove helpful in the assessment of painful PFR.

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MRI analysis of the component–bone interface after TKA

Cited by 36 publications

References 18 publications

Metal artefact reduction in MRI at both 1.5 and 3.0 T using slice encoding for metal artefact correction and view angle tilting

Metal artefact reduction in MRI at both 1.5 and 3.0 T using slice encoding for metal artefact correction and view angle tilting

MRI after unicondylar knee arthroplasty: The preserved compartments

MRI After Patellofemoral Replacement: the Component–Bone Interface and Rotational Alignment

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