Effects of femoral bone defect morphology on initial polished tapered stem stability in massive defect model: a biomechanical study
نویسندگان
چکیده
منابع مشابه
Influence of stem geometry on the stability of polished tapered cemented femoral stems.
Polished, tapered stems are now widely used for cemented total hip replacement and many such designs have been introduced. However, a change in stem geometry may have a profound influence on stability. Stems with a wide, rectangular proximal section may be more stable than those which are narrower proximally. We examined the influence of proximal geometry on stability by comparing the two-year ...
متن کاملVarious Dosages of BMP-2 for Management of Massive Bone Defect in Sprague Dawley Rat
Introduction: The use of BMP-2 plays an important role in the treatment of extensive bone defect. However, data about the optimal dosage of BMP-2 in the massive bone defect cases is rare. Material and Method: Twenty-five SD rats were randomly divided into a control group ofhydroxyapatite (HA) alone (Group I), HA+BMP-2 1µg/mL (Group II), HA+BMP-2 5 ug/mL (Group III), HA+BMP-2 10 µg/mL (Gro...
متن کاملInitial Evaluation on Subsidence of Cemented Collarless Polished Tapered Stem Applied to the Patients with Narrow Femoral Medullar Canal
PURPOSE The geometry of the proximal femur is one of the important factors for choosing the suitable stem. We have been applied cemented collarless polished tapered (CPT) stem to the patients with small femur. Radiographic evaluation was performed to access the clinical feature of the stem in early stage of the follow-up. METHODS One hundred total hip arthroplasties with CPT system were perfo...
متن کاملEffects of mesenchymal stem cells in critical size bone defect.
BACKGROUND AND OBJECTIVES The aim of this study was to compare culture-expanded, bone marrow-derived mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) loaded to biphasic calcium phosphate (BCP) bone ceramic in the repair of rat calvarial bone. MATERIALS AND METHODS Critical-size (7 mm dia.) calvarial defects were prepared in the frontal-parietal bones of 90 adult female Sprague-Daw...
متن کاملIs a hollow centralizer necessary when using a polished, tapered, cemented femoral stem?
Background and purpose - A tapered, polished and collarless stem is normally equipped with a hollow centralizer to prevent the stem from becoming end-bearing in the cement as the stem subsides. In a randomized clinical trial, we evaluated such a stem (MS-30), which was initially introduced with a solid centralizer but was later recommended to be fitted with a hollow centralizer. We hypothesized...
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ژورنال
عنوان ژورنال: BMC Musculoskeletal Disorders
سال: 2019
ISSN: 1471-2474
DOI: 10.1186/s12891-019-2716-8