National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and University of Bristol, UK.
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National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and University of Bristol, UK.
North Bristol NHS Trust, Southmead Hospital, Bristol, UK.
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National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and University of Bristol, UK.
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surgery for chronic pain after TKA should not be performed unless the cause of pain is clearly identified as implant-related, as revision surgery for unexplained pain has consistently been shown to result in poor outcomes. 91 - 93 Chronic pain after
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, progressive arthritis, and instability; knee pain continues to be one of the top five reasons for revision surgery. 2 A retrospective study by Erivan R et al 12 showed that in patients with unexplained chronic knee pain following TKR, 4.5% of cases
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not significantly associated with adverse outcomes, caution should be exercised when attributing unexplained pain to PFJ overstuffing, and revision should not be performed for this alone. Table 3 Comparison of overstuffed and unstuffed knees by
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. However, bearing dislocation is still reported as the predominant mechanism of failure in mobile-bearing UKAs. 49 Mechanical loosening, lateral OA and unexplained pain are other mechanisms of failure, with revision for patellofemoral problems and PE
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a titanium TKA four years after UKA. 110 Despite the numerous pathophysiological explanations for symptoms after UKA, there remains a subgroup of patients with unexplained pain. This vexing problem does not justify revision as studies demonstrate
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infection, one case of arthrofibrosis, and two cases of failure due to unexplained pain. The most common complication after UKA was mobile-bearing dislocation in the mobile-bearing knees and loosening of the prosthesis in the fixed-bearing knees, but
