J Trauma
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Despite the good and reliable results of the dynamic hip screw (DHS) for stable fracture patterns, complications of excessive sliding of the lag screw and inadequate bone anchorage occur frequently in elderly patients with unstable intertrochanteric fractures. Although polymethylmethacrylate (PMMA) bone cement has been widely used as a secondary fixation to facilitate fixation stability, there has been no prospective study on the clinical significance of PMMA cement to prevent these two complications in unstable fracture patterns. ⋯ With the meticulous augmentation technique demonstrated in this study, the PMMA cemented DHS proved to have better outcome than a conventional DHS for unstable intertrochanteric fractures in elderly patients. Typical complications related to a conventional DHS device for the treatment of such fractures were successfully prevented.
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Comparative Study
Improved trauma system multicasualty incident response: comparison of two train crash disasters.
Two train crash multicasualty incidents (MCI) occurred in 2005 and 2008 in Los Angeles. A postcrash analysis of the first MCI determined that most victims went to local community hospitals (CHs) with underutilization of trauma centers (TCs), resulting in changes to our disaster plan. To determine whether our trauma system MCI response improved, we analyzed the distribution of patients from the scene to TCs and CHs in the two MCIs. ⋯ A trauma system performance improvement program allowed us to significantly improve our response to MCIs with improved utilization of TCs and improved distribution of victims according to injury severity and needs.
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Currently used Trauma and Injury Severity Score (TRISS) coefficients, which measure probability of survival (PS), were derived from the Major Trauma Outcome Study (MTOS) in 1995 and are now unlikely to be optimal. This study aims to estimate new TRISS coefficients using a contemporary database of injured patients presenting to emergency departments in the United States; and to compare these against the MTOS coefficients. ⋯ Imputed NTDB coefficients are recommended as the TRISS coefficients 2009 revision for blunt mechanism and adult penetrating mechanism injuries. Coefficients for pediatric penetrating mechanism injuries could not be reliably estimated.
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Although a lateral starting point for tibial nailing is recommended to avoid valgus misalignment, higher rates of intra-articular damage were described compared with a medial parapatellar approach. The aim of this anatomic study was to evaluate the fracture level allowing for a safe medial nail entry point without misalignment or dislocation of fragments. ⋯ According to the results of this study, a medial parapatellar approach can be performed without misalignment and fragment dislocation in proximal tibia fractures extending 8 cm or more below the tibial tuberosity.
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Because of demographic changes in industrialized countries, signifying a growing population of the aged and a markedly increased life expectancy, the incidence of the distal radius fracture is expected to increase by a further 50% until the year 2030. Osteoporosis characterizes the radius fracture in elderly patients. Primarily weakening metaphyseal bone, osteoporosis renders simple fractures unstable and makes distal bone fixation a challenge. The introduction of fixed-angle plate systems for extension fractures of the radius was evaluated in a prospective study performed at our hospital after selection and acquisition of a new plating system. The focus of our interest was whether a secondary loss of reduction can be prevented by this plating system in the elderly patient. ⋯ Fixed-angle plate osteosynthesis at the distal radius in the elderly patient signifies a significant improvement in the treatment of distal radial fractures in terms of restoration of the shape and function of the wrist associated with a low complication rate. This technique with its simple palmar access, allows exact anatomic reduction of the fracture, allows early return to function, and minimizes morbidity in the elderly patient. Secondary correction loss can be prevented by this procedure.