A 74-year-old man developed a severe low back pain and a fever. In the initial examinations, a collapse of the L5 anterosuperior vertebral body and narrowing of the L4/5 disc space were identified on radiographs, and the laboratory data showed inflammatory results. A computed tomography (CT) and a magnetic resonance imaging showed collapse of L5. A needle biopsy was performed to make a diagnosi...

Magnetic Resonance Imaging (MRI) has unmatched potential for planning, guiding, monitoring and controlling interventions. MR arthrography (MRA) is the imaging gold standard to assess small ligament and fibrocartilage injury in joints. In contemporary practice, MRA consists of two consecutive sessions: 1) an interventional session where a needle is driven to the joint space and gadolinium contra...

“A clever person solves the problem. A wise avoids it” (Albert Einstein). There is no convincing evidence that any modality 100% effectively prevents nerve injury. The risk of injury remains same even with ultrasound due to limitations in resolution images and inter-operator inter-patient differences. In a nutshell, caution required when dealing precious nerves perioperative period, either duri...

background and objectives:breast cancer is the most common cancer among women worldwide. fine needle aspiration biopsy (fnab) is one of the methods of breast biopsy which is fast, easy and cost effective. the aim of this study was to evaluate the concordance rate between pathologic results of sonography or stereotaxy guided fnab and guided core needle biopsy (cnb) in the evaluation of breast le...

conclusions there is clinical utility in knowing the relative deflection of various needle tips. when a procedure requires a needle to be steered around obstacles, or along non-collinear targets, the predictable and large amount of deflection obtained through use of a beveled spinal needle may prove beneficial. materials and methods six needles commonly used in spinal procedures (quincke, short...

PURPOSE Presently, no standardized technique exists to monitor injection pressures during peripheral nerve blocks. Our objective was to determine if a compressed air injection technique, using an in vitro model based on Boyle's law and typical regional anesthesia equipment, could consistently maintain injection pressures below a 1293 mmHg level associated with clinically significant nerve injur...

OBJECTIVE To evaluate the risk of vascular injury during transobturator approach of cystocele repair. DESIGN Dissection of the obturator area by perineal approach was performed after placement of mesh needles used for cystocele mesh repair. SETTING Surgery school of Paris. POPULATION OR SAMPLE Twenty obturator regions in ten fresh female cadavers. METHODS Transperineal dissection of the...

BACKGROUND Nerve puncture by the block needle and intraneural injection of local anesthetic are thought to be major risk factors leading to neurologic injury after peripheral nerve blocks. In this study, the author sought to determine the needle-nerve relation and location of the injectate during ultrasound-guided axillary plexus block. METHODS Using ultrasound-guided axillary plexus block (1...

BACKGROUND AND OBJECTIVES Intraneural injection can be seen as nerve expansion during ultrasound-guided regional anesthesia. The purpose of this animal study was to determine if nerve expansion seen on ultrasound during intraneural injection results in nerve injury. METHODS Ten pigs underwent general anesthesia for this randomized control study. After skin incision, the right and left median ...

background and objectives: needle stick and sharp injuries (nsis) has remained as a persisting occupational hazard among the healthcare workers. this study aimed to provide updated information on the intensity and potential causes of the problem in iran, by surveying a sample from major hospitals affiliated with tehran university of medical sciences.   methods: of 3312 healthcare workers with t...