Herpes zoster is a rare cause of non-discogenic sciatica. A combination of case rarity and name similarity was nearly leading to an inopportune surgery in a 21 years old woman. The clinical presentation was completely similar to a cauda equina syndrome associated with urinary incontinence and bilateral leg involvement. Concurrently, lumbosacral imaging of another patient with exactly simila...

herpes zoster is a rare cause of non-discogenic sciatica. a combination of case rarity and name similarity was nearly leading to an inopportune surgery in a 21 years old woman. the clinical presentation was completely similar to a cauda equina syndrome associated with urinary incontinence and bilateral leg involvement. concurrently, lumbosacral imaging of another patient with exactly similar na...

We study the weighted improper coloring problem, a generalization of defective coloring. We present some hardness results and in particular we show that weighted improper coloring is not fixed-parameter tractable when parameterized by pathwidth. We generalize bounds for defective coloring to weighted improper coloring and give a bound for weighted improper coloring in terms of the sum of edge w...

We identify a class of monomial supports that are inherently improper because any surface rational parametrization defined on them is improper. A surface support is inherently improper if and only if the gcd of the normalized areas of the triangular sub-supports is non-unity. The constructive proof of this claim can be used to detect all and correct almost all improper surface parametrizations ...

All quantum mixtures are what d’Espagnat has termed “improper.” His “proper” mixture cannot be created — if welcher weg, or distinguishing, information exists, an improper mixture results, while in the absence of such information, the resulting “mixture” is a pure state. D’Espagnat has claimed that an interpretation of the improper mixture in terms of subensembles leads to logical inconsistency...

OBJECTIVES/HYPOTHESIS To review the presentation and management of improper electrode array placement, and to help guide clinical decision-making. STUDY DESIGN Retrospective case series. METHODS Pediatric and adult cochlear implant patients managed from January 2001 to present whose electrode arrays were not placed properly within the cochlea or extended beyond the cochlea into the internal...

INTRODUCTION Medical malpractice results from inadequate professional knowledge, incompliance to the present state of medical knowledge or negligence and inattention. The aim of the paper was the analysis of diagnostic and therapeutic malpractice based on casework material in the field of neurosurgery. MATERIAL AND METHODS Medical malpractice cases were assessed according to the number and ty...

Intraoperative neurophysiological monitoring (IONM) has been widely used to detect iatrogenic neural damage minimize postoperative neurological deterioration. In this case, a was prevented by early detection of the improper position and correction marked drops in blood pressure through IONM. A 72-year-old man underwent surgery due cervical myelopathy. The somatosensory evoked potentials (SEPs) ...

OBJECTIVES To report the occurrence of persistent diplopia manifesting after refractive surgery, to describe the different causes of this complication, to provide risk stratification for its occurrence, and to outline minimal screening techniques for its prevention. METHODS A retrospective medical record review of patients seen in 2 private strabismus practices who experienced persistent dipl...

What is the role of imaging in before, during, and after total hip arthroplasty (THA)? Radiographs are the first level of imaging in the preand postoperative study of THA. Imaging is fundamental to identifying the correct indications for THA. It is also important in judging the morphology of the femur in terms of flare and the cortical index and of anteversion. These features are the main facto...