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-preservation procedure, the prognosis for patients with ONFH can be significantly improved with early diagnosis and intervention. 3 , 14 Many variables, such as stage of the disease, patient age, lesion size, and lesion location, play an important role in selection
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surgery as patients and physicians are preparing for THA. The prognosis of patients with SCD has improved in recent times, and life expectancy has considerably increased. Therefore, improving quality of life by managing musculoskeletal complications
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% femoral head collapse rate. In contrast, all patients without a sclerotic zone eventually experienced femoral head collapse ( 76 ). Moreover, ARCO stage II ONFH with a ring-shaped sclerotic zone usually has an ideal prognosis ( 77 ). When the ring
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definitely complicates the functional prognosis. Treatment in cases of recurrence or osteoarthritis The choice of treatment in cases of failure, avascular necrosis, femoral neck fracture or osteoarthritis is preferentially THA, as shown in Flipo
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of instability, the component should be revised to a proper position. The prognosis of revision for this cause is relatively good. 33 Dual mobility cups There are several reports of good results using dual mobility cups 34 – 38
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$) , 2022 . Available at: http://www.who.int/gho . Accessed on 20 May 2022. 21 Furnes O Lie SA Espehaug B Vollset SE Engesaeter LB & Havelin LI . Hip disease and the prognosis of total hip replacements: a review of 53,698 primary total hip
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. A femoral head depression is described when there is a change in the femoral head contour of > 2 mm which may lead to a worse prognosis. 29 This fact is supported by a cross-sectional study of 68 hips (52 patients) suffering from ONFH. It has
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Introduction The introduction of bisphosphonates into osteoporosis therapy was a great breakthrough, leading to a remarkable reduction of fracture incidence and improvement of prognosis. 1 Since the effect is caused by a reduction of bone
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osteotomy is made to improve joint congruency and/or ROM, or to improve the weight-bearing area in a hip joint with secondary arthritis. 68 , 69 Several studies, however, point out that these procedures carry a poor prognosis giving poor results, and
Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
These authors contributed equally to the manuscript
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These authors contributed equally to the manuscript
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Supplemental material is available online alongside this paper at https://doi.org/10.1302/2058-5241.6.200072 References 1. Malchau H Herberts P . Prognosis of total hip replacement . Int J Risk Saf Med 1996 ; 8 : 27 – 45
