Comparison of the safety and efficacy of bilateral simultaneous total hip replacement (THR) and that of staged bilateral THR and unilateral THR was conducted using DerSimonian-Laird heterogeneity meta-analysis. A review of the English-language literature identified 23 citations eligible for inclusion. A total of 2063 bilateral simultaneous THR patients were identified. Meta-analysis of homogene...

The purpose of this study was to compare the clinical results and complication rates after unilateral vs. staged bilateral metal-on-metal hip resurfacing arthroplasty (HRA) when using a comprehensive blood management program, to determine if there was increased risk for staged HRAs. The study group included 25 consecutive bilateral patients with osteoarthritis (OA) (50 hips). The control group ...

AIM To see how patterns of care changed over time, and how institution type effected these decisions. METHODS A retrospective analysis was performed using the National Cancer Database, looking at all patients that were diagnosed with rectal cancer from 1998 to 2011. We tested differences in rates of treatment and stage migration using χ2 tests and logistic regression models. RESULTS A revie...

Common implementation approaches for embedding DSLs in general-purpose host languages force developers to choose between a shallow (single-staged) embedding which offers seamless usage, but limits DSL developers, or a deep (multi-staged) embedding which offers freedom to optimize at will, but is less seamless to use and incurs additional runtime overhead. We propose a metaprogrammatic approach ...

The general management of periprosthetic infections after total joint replacement (TJR) remains a challenging procedure to any arthroplasty surgeon. The infection rate after primary TJR is reported to be between 0.5% and 2%, however in the field of revision arthroplasty, this might increase to over 10%.1-4 Consequently, periprosthetic infections remain a serious problem, despite modern techniqu...

Methods For this study, ten subjects with medication-refractory symptoms or side effects of advanced Parkinson’s disease will be enrolled. Each patient will be treated with a “sub-therapeutic” (stage 1) focused ultrasound subthalamotomy and observed for thirty days. Those who develop severe and involuntary movements, such as hemiballismus, will be excluded from the second stage procedure. For t...

In low power wireless sensor networks, MAC protocols usually employ periodic sleep/wake schedule to reduce idle listening time. Even though this mechanism is simple and efficient, it results in high end-toend latency and low throughput. On the other hand, the previously proposed CSMA/CA based MAC protocols have tried to reduce inter-node interference at the cost of increased latency and lower n...

abstract this research evaluates climate change effects on drought severity in the region of gharesou, iran. the standardized precipitation index (spi) has been used for estimation of drought severity. a geographical information system is applied for calculating the mean areal precipitation time series from 11 meteorological stations, in and out of the area for the hydrological period jan 1971-...

In this paper a family of homogeneity–based observers is proposed to estimate the state class multiple–outputs linear systems with some parametric uncertainties and unknown inputs. Such possesses robustness, finite– fixed–time convergence properties depending on considered The structure these simple since requires neither additional observers, for an priori stabilization, nor complex transforma...