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in increased revision rates. Common causes of revision THA are wear, loosening, dislocation or instability and infection. It should be stressed that a changing pattern of modes of failure has been observed; failures are separated into either early or
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available to identify relevant failures, and the required explant analysis to be provided. Such a system would help to identify ‘new’ unknown failure mechanisms earlier and would increase the trust of the patients in the implants and surgeons. Explant
Upper Limb Unit, Department of Orthopedic Surgery, Amphia Hospital, Breda, The Netherlands
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Department of Orthopedic Surgery, Amsterdam University Medical Centers, Amsterdam, The Netherlands
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ranging from 61% to 97%. 5 , 7 This raises questions of whether implant- or fixation-related factors may be related to early failure. Except in the case of silicone RHPs, that have previously proved to be biologically and biomechanically insufficient
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knee replacement registries still show a relatively high revision and failure rate of UKA, especially if compared with TKA. 5 In particular, many of these failures occur in the early post-operative period (< 5 years). 6 The higher incidence of
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osteolysis and ultimately late loosening, i.e. that the periprosthetic osteolysis precedes the loosening. The theory of early loosening, 17 , 18 on the other hand, postulates that the process leading to clinical failure has already been initiated during
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plan surgical treatment appropriately, but also to allow preoperative counselling in order to obtain consent for treatment. Hyperglycaemia plays a central role in the pathogenesis of complications, 10 as we discussed earlier, and measurement of
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, interposition arthroplasty, arthrodesis, or total joint replacement. Despite the use of total joint arthroplasty being widespread in Europe, early systematic reviews have highlighted a lack of high-quality evidence to support its use. 2 More recently
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Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, Geneva, Switzerland
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stress to the rotator cuff ( Fig. 1 ). Overstuffing not only decreases shoulder range of motion but also changes rotator cuff lever arm, exposing patients to the potential risk of secondary cuff failure. 22 , 23 Restoring physiologic soft tissue tension
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reasons for implant failure and early revision surgery in UKA. 5 – 7 To help overcome this, there has been a recent surge in robotic UKA. This procedure uses computer technology to preoperatively plan optimal bone resection and implant positioning
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and results . EFORT Open Rev 2019 ; 4 : 121 – 132 . 2. Wang CJ Wang HE . Early catastrophic failure of rotating hinge total knee prosthesis . J Arthroplasty 2000 ; 15 : 387 – 391 . 3. Petrou G
