Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Apr 2012
Randomized Controlled Trial Comparative StudyA comparative study on screw loosening in osteoporotic lumbar spine fusion between expandable and conventional pedicle screws.
The aim of this study is to compare the rate of screw loosening and clinical outcomes of expandable pedicle screws (EPS) with those of conventional pedicle screws (CPS) in patients treated for spinal stenosis (SS) combined with osteoporosis. ⋯ EPS can decrease the risk of screw loosening and achieve better fixation strength and clinical results in osteoporotic lumbar spine fusion.
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Arch Orthop Trauma Surg · Apr 2012
Clinical TrialFall incidence and risk factors in patients after total knee arthroplasty.
To prospectively investigate the relationship between physical function and falls among elderly patients who underwent total knee arthroplasty (TKA) and to determine the incidence of falls as well as their risk factors. ⋯ Elderly people who underwent TKA are considered more likely to fall compared with healthy elderly people. For patients with limited knee flexion and ankle plantar flexion, improvement of ROM by exercise therapy and patient education regarding the prevention of falls and fractures are considered necessary.
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Arch Orthop Trauma Surg · Apr 2012
ReviewSalvage of recurrence after failed surgical treatment of hallux valgus.
Recurrence of the deformity is unfortunately a common occurrence following surgical treatment of hallux valgus. The underlying reason for recurrence is multifactorial and includes surgeon's factor, patient's factor, and deformity components that were not addressed at the index procedure. ⋯ Successful treatment requires understanding the underlying reason for the failure of initial treatment and correcting bony alignment, restoring the joint congruity, and balancing soft tissues. We present an algorithmic approach to revision hallux valgus surgery.
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Arch Orthop Trauma Surg · Apr 2012
Clinical TrialPrecision of Ci-navigated extension and flexion gap balancing in total knee arthroplasty and analysis of potential predictive variables.
The aim of this study was to evaluate the accuracy of final limb alignment and flexion-extension and medial-lateral gap balancing in computer navigated total knee arthroplasty and to analyze various possible predictive variables that may affect the gaps in computer navigated knee arthroplasty. ⋯ Computer-assisted navigated total knee replacement allows for accurate gap balancing that is not dependent on the various pre- and intraoperative factors mentioned, including age, sex, Range of motion preoperative deformity and grade of osteoarthritis. The Ci-calculated and verified tibial, and femoral cuts are the only possible factors affecting the extension gap.
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Arch Orthop Trauma Surg · Apr 2012
Survivorship of second-generation metal-on-metal primary total hip replacement.
Second generation metal-on-metal total hip replacements (THR) were introduced in the late 1980s and various studies reported conflicting data on their outcome. ⋯ As there was no superior probability of survival, and there have been concerns on putative local and systemic toxicity of metal debris, the use of second-generation metal-on-metal articulations for primary THR remains moot.