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grade 4-5 defect in the lateral femoral condyle associated with a sequestered intra-articular fragment 6 ( Fig. 2 ). Fig. 1 Bone marrow oedema-like signal related to anterior cruciate ligament tear. On a sagittal fluid-sensitive image (PD with
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small defects / limited availability of bone graft - Risk of early resorption / highly depends on the soft tissue bed - Risk of relapse of infection - Graft incorporation is slow and unreliable - Donor site morbidity Antibiotic-impregnated cement
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Faculty of Medicine, University of Geneva, Geneva, Switzerland
Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, Geneva, Switzerland
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. 29 Glenoid bone defects and morphology An important concept regarding glenohumeral joint stability is the concavity compression principle, which centres the humeral head on the glenoid. This centring mechanism is the result of the rotator
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available methods to make a precise evaluation of the HSL radiographically, nor to predict its engagement before surgery. Its contribution to instability depends on the size, direction, and location of the bone defect. 4 This difficulty may be explained
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and AAOS type 3 and 4 defects demonstrate severe bone loss of the acetabular rim and supporting structures, such as the medial wall and the anterior/posterior column with possible pelvic discontinuity ( 1 , 2 , 3 ). Over the past decades, multiple
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bone regeneration in rabbit skull defects . BMC Musculoskeletal Disorders 2013 14 76. ( https://doi.org/10.1186/1471-2474-14-76 ) 39. Li P Ma YC Sheng XY Dong HT Han H Wang J & Xia YY . Cyclic fluid shear stress promotes
Department of Orthopaedics and Traumatology, Freiburg University Hospital, Freiburg, Germany.
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shows poor callus formation on X-ray, has viable fracture fragments and a disturbed local biology or mechanics. An atrophic nonunion is mobile, has no callus, non-viable bone or a bone defect which is caused by impaired biology, often combined with
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-related factors, such as younger age and high activity. Empirically, most mechanical or septic loosening can be addressed using standard posterior-stabilized (PS) prostheses combined with defect or fixation augmentation. However, ligament insufficiency and bone
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other hand, type B2 describes instability caused by structural damages such as posterior Bankart lesion, posterior glenoid bone loss, RHSL, or a combination hereof due to a single trauma or recurrent microtrauma. These structural defects of the humeral
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Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg a.d.H., Germany
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Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg a.d.H., Germany
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glenohumeral osteoarthritis, and in many cases, associated glenoid bone defects also need to be addressed ( 2 ). There are several bone grafting procedures available, and their effect on the position of the center of rotation (COR) can vary. Depending on the