نتایج جستجو برای: gruen zones
تعداد نتایج: 46179 فیلتر نتایج به سال:
Background and purpose - Short-term experimental studies have confirmed that there is superior fixation of cementless implants inserted with compaction compared to broaching of the cancellous bone. Patients and methods - 1-stage, bilateral primary THA was performed in 28 patients between May 2001 and September 2007. The patients were randomized to femoral bone preparation with broaching on 1 si...
Conventional uncemented femoral implants provide dependable long-term fixation in patients with a wide range of clinical function. However, challenges with proximal-distal femoral mismatch, preservation of bone stock, and minimally invasive approaches have led to exploration into various other implant designs. Short-stem designs focusing on a stable metaphyseal fit have emerged to address these...
Global Surgery 2030: evidence and solutions for achieving health, welfare, and economic development.
John G Meara*, Andrew J M Leather*, Lars Hagander*, Blake C Alkire, Nivaldo Alonso, Emmanuel A Ameh, Stephen W Bickler, Lesong Conteh, Anna J Dare, Justine Davies, Eunice Dérivois Mérisier, Shenaaz El-Halabi, Paul E Farmer, Atul Gawande, Rowan Gillies, Sarah L M Greenberg, Caris E Grimes, Russell L Gruen, Edna Adan Ismail, Thaim Buya Kamara, Chris Lavy, Ganbold Lundeg, Nyengo C Mkandawire, Naku...
BACKGROUND A hip replacement with a cemented or cementless femoral stem produces an effect on the bone called adaptive remodelling, attributable to mechanical and biological factors. All of the cementless prostheses designs try to achieve an optimal load transfer in order to avoid stress-shielding, which produces an osteopenia.Long-term densitometric studies taken after implanting ABG-I and ABG...
Medium-term follow-up of 92 femoral component revisions using a third-generation cementing technique
BACKGROUND AND PURPOSE Very little has been published on the outcome of femoral cemented revisions using a third-generation cementing technique. We report the medium-term outcome of a consecutive series of patients treated in this way. PATIENTS AND METHODS This study included 92 consecutive cemented femoral revisions performed in our department with a third-generation cementing technique and ...
Clinical bottom line Category of research Treatment. Number and type study designs reviewed Three papers were critically reviewed. One was a prospective, randomised, blinded observational study, another placebo-controlled clinical trial, the last non-randomised open-label trial. Strength evidence Weak. Outcomes reported The administration trazodone to hospitalised dogs reduced several observed ...
due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
Progressive loss of bone mineral density around the femora! component of total hip replacement continues to pose a threat to long term prosthetic survival. A linear study was undertaken to measure bone mineral density on a monthly basis following total hip arthroplasty in 11 male patients. The opposite femur was used as the control measurement. Bone mineral density was unchanged at two mo...
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