a 25-year old man presented with chronic low back pain for about 5 years due to mild congenital lumbar kyphosis (l1-l3 25° with congenital posterior wedge vertebra l2). preoperative neurologic examination was normal. after posterior spinal fusion and instrumentation with moderate curve correction, the patient gradually developed the symptoms and signs of cauda equina syndrome due to intraoperat...

Online interaction with computer systems and applications allows developers to monitor, experiment with, and debug long-running, resource-intensive applications at runtime. Traditionally, developers statically bind a monitoring mechanism to each application-specific instrumentation point. This approach has shortcomings for online, interactive monitoring. Namely, static binding limits portabilit...

objectives : cleaning and shaping of the root canal system is an important step in endodontic therapy. new instruments incorporate new preparation techniques that can improve the efficacy of cleaning and shaping. the aim of this study was to compare the efficacy of mtwo and race rotary file systems in straightening the canal curvature using only one file or the conventional method. materials an...

Profiling and tracing tools can help make application parallelization more effective and identify performance bottlenecks. Profiling presents summary statistics of performance metrics while tracing highlights the temporal aspect of performance variations, showing when and where in the code performance is achieved. A complex challenge is the mapping of performance data gathered during execution ...

Instrumentation is a technique frequently used in software engineering for several different purposes, e.g. program and/or specification execution trace, testing criteria coverage analysis, and reverse engineering. Instrumenting a software product can be divided into two main tasks: (i) deriving the software product structure and (ii) inserting statements for collecting runtime/simulation infor...

The aim of this study is to report our 39 patients treated with anterior debridement and autologous iliac bone grafting with or without anterior instrumentation, which is the presumed treatment of choice for thoracic or lumbar spondylodiscitis.Our patients underwent surgical treatment of spondylodiscitis using anterior debridement and autologous iliac bone grafting with or without anterior inst...

INTRODUCTION A late-developing infection after an uneventful initial spinal instrumentation procedure is rare. Delayed infection and new fistula formation have been reported from a few months to 13 years. Here we report an unusual 17-year-delayed fistula formation after primary spinal instrumentation. The patient underwent hardware removal surgery with antibiotic therapy as a definitive treatme...

Introduction: Multilevel total en bloc spondylectomy (TES) is required to secure oncologically adequate resection margins. However, no useful information has been reported for spinal reconstruction after multilevel TES. Therefore, this study set out to assess the clinical and radiological outcomes of spinal reconstruction after multilevel TES. Methods: Forty-eight patients treated with multilev...