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The Bone & Joint Journal
Vol. 103-B, Issue 8 | Pages 1328 - 1330
1 Aug 2021
Trauma and orthopaedic research is being driven by priorities identified by patients, surgeons, and other key stakeholders
Gwilym SE Perry DC Costa ML
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The Bone & Joint Journal
Vol. 102-B, Issue 10 | Pages 1331 - 1340
3 Oct 2020
Quantification of intra-articular fibrosis in patients with stiff knee arthroplasties using metal-reduction MRI
Attard V Li CY Self A Mann DA Borthwick LA O’Connor P Deehan DJ Kalson NS
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Aims

Stiffness is a common complication after total knee arthroplasty (TKA). Pathogenesis is not understood, treatment options are limited, and diagnosis is challenging. The aim of this study was to investigate if MRI can be used to visualize intra-articular scarring in patients with stiff, painful knee arthroplasties.

Methods

Well-functioning primary TKAs (n = 11), failed non-fibrotic TKAs (n = 5), and patients with a clinical diagnosis of fibrosis1 (n = 8) underwent an MRI scan with advanced metal suppression (Slice Encoding for Metal Artefact Correction, SEMAC) with gadolinium contrast. Fibrotic tissue (low intensity on T1 and T2, low-moderate post-contrast enhancement) was quantified (presence and tissue thickness) in six compartments: supra/infrapatella, medial/lateral gutters, and posterior medial/lateral.

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