Search results for "Pelvi"
showing 10 items of 330 documents
The "critical zones" of entrapment of the nerves of the lower limb.
1991
The author has studied, in a group of 40 dissections on cadavers of individuals of different ages, the main “critical zones” of entrapment of some terminal branches of the lumbo-sacral plexus, which include canals (fibrous, osteo-fibrous, fibro-muscular), intervals (intermuscular, fibro-muscular, musculo-ligamentous), rings (fibrous or fibro-muscular) and foramina. They provide the topographical anatomical basis for possible compressive phenomena of the nerves of the lower limb.
Anatomy of the Sacral Roots and the Pelvic Splanchnic Nerves in Women Using the LANN Technique
2007
AIMS: To report on our anatomic and electrophysiologic findings about the sacral nerve roots and the pelvic splanchnic nerves during laparoscopic pelvic surgery. METHODS: The pelvic splanchnic nerves and the sacral nerve roots were dissected in 336 consecutive patients undergoing laparoscopy for pelvic pain syndrome or gynecologic diseases. Intraoperative assessment of the functionality of the exposed nerves was performed using the LAparoscopic Neuro-Navigation (LANN) technique. RESULTS: Dissection of the sacral roots and the splanchnic pelvic nerves lateral to the sacral hypogastric fascia was feasible without any complications in all patients in this series. The mean surgical time was 16 …
AB1197 Changes in Lumbar Spinopelvic Pattern of Movement Influence the Flexion Relaxation of the Erector Spinae
2015
Background In healthy subjects, the erector spinae muscles (ES) exhibits a relaxation of its electrical activity when the trunk is nearby its full flexion. Objectives To find out the influence of exhibiting a lumbar spine or a pelvis dominant pattern of movement during trunk flexion from upright position on the appearance of the myoelectric relaxation of the erector spinae. In healthy subjects, the erector spinae muscles (ES) exhibits a relaxation of its electrical activity when the trunk is nearby its full flexion. Objectives To find out the influence of exhibiting a lumbar spine or a pelvis dominant pattern of movement during trunk flexion from upright position on the appearance of the my…
Screw‐in‐screw fixation of fragility sacrum fractures provides high stability without loosening—biomechanical evaluation of a new concept
2020
Surgical treatment of fragility sacrum fractures with percutaneous sacroiliac (SI) screw fixation is associated with high failure rates. Turn-out is detected in up to 20% of the patients. The aim of this study was to evaluate a new screw-in-screw implant prototype for fragility sacrum fracture fixation. Twenty-seven artificial hemipelvises were assigned to three groups (n = 9) for instrumentation of an SI screw, the new screw-in-screw implant prototype, ora transsacral screw. Before implantation, a vertical osteotomy was set in zone 1 after Denis. All specimens were biomechanically tested to failure in upright position. Validated setup and test protocol were used for complex axial and torsi…
Retrograde Transpubic Screw Fixation
2017
In the vast majority of fragility fractures of the pelvis, fractures of the posterior and anterior pelvic ring occur combined. Fractures of the pubic rami above and below the obturator foramen are much more frequent than fractures of the pubic bone and fractures at the anterior lip of the acetabulum. Retrograde transpubic screw fixation is a minimally invasive technique for stabilization of pubic rami fractures. The anterior column corridor is a straight corridor between the anterior cortex of the superior pubic ramus near to the pubic tubercle and the external cortex of the ilium above the acetabulum. The minimal canal diameter, measured in 160 Japanese, was on average 13.5 mm for men and …
AB1057 risk factors associated with different lumbopelvic patterns of movement
2016
Background Rapid flexion movement increases the loading on the spine and it increases the risk of injuries 1 . In asymptomatic subjects lumbar-dominant and pelvis-dominant patterns of movement during trunk flexion have been observed 2,3 . However, little information about lumbar spine kinematics has been provided. Objectives To find out whether exhibiting different lumbopelvic patterns of movement during trunk flexion affects the kinematics of the lumbar spine in terms of velocity of motion. Methods Differential lumbar spine and pelvis angular displacement during the time course of a standardised sagittal trunk flexion from an upright position was recorded with an electromagnetic tracking d…
Identifizierung unbekannter Leichen durch Röntgenbildvergleich
1995
Between 1987 and 1993, 30 unknown bodies were identified by means of pre- and postmortem radiographs at the Forensic Institute in Mainz. Our experience indicates that radiological identification comprises a useful, rapid and cheap method, at least as valuable as dactyloscopy or odontological comparisons. The ages of available radiographs were up to 25 years; the most suitable regions are the skull (11), pelvis and lumbar spine (6), lower femur and knee (5) and distal leg with the ankle joint (5). In respect of the problem of objectifying the probability of identity, possibilities for solutions are shown.
Juxtacortical mandibular chondrosarcoma during pregnancy : a case report
2017
Chondrosarcoma is one of the most common malignant bone tumors in adults. It use to affect upper arm, pelvis and thigh bone. A wide surgical extirpation represent the gold standard to treat this disorder. In fact, radiotherapy and chemotherapy are no useful. Interestingly, chondrosarcoma is rare in head and neck (HNCS) and extremely uncommon during pregnancy. Thus, there is a lack of evidence about the proper treatment in these cases. A wide surgical extirpation is also considered the most effective procedure in HNCS. There are no consistent evidences about the he role of radiation and chemotherapy. In view of that, the present study describes a case of juxtacortical mandibular chondrosarco…
Differences in Accuracy and Radiation Dose in Placement of Iliosacral Screws: Comparison between 3D and 2D Fluoroscopy
2022
Percutaneous iliosacral screw fixation is a widely accepted method of stabilizing the posterior pelvic ring. Recently developed tools such as 3D-navigated fluoroscopy and computed navigation seem to prevent a surgeon from conducting screw misplacement. The study aimed to comparatively assess the introduction of sacroiliac screw placement using 2D and 3D fluoroscopy in terms of accuracy and radiation exposure. Iliosacral screws were introduced in 37 patients using 2D (group N1) and in 36 patients using 3D fluoroscopy (group N2) techniques. Overall, 61 and 56 screws were introduced in groups N1 and N2, respectively. Screw placement accuracy was assessed using postoperative computed tomography…
Reconstrucción de grandes defectos pelvi-perineales tras cirugía oncológica: estudio del colgajo VRAM extendido
2020
Introducción El tratamiento de los tumores malignos localmente avanzados de la pelvis y el periné requiere la realización de una amplia resección de la lesión, lo que genera un defecto de grandes dimensiones cuya reconstrucción es compleja. Los colgajos miocutáneos regionales, principalmente los basados en los músculos rectos del abdomen, son la opción más empleada para este fin. El objetivo de este trabajo es analizar las posibilidades del colgajo miocutáneo vertical de recto abdominal extendido (eVRAM) para la reconstrucción de grandes defectos pelvi-perineales mediante un estudio anatómico y la revisión de una serie de casos. Material y método Se realizó un estudio anatómico en 10 cadáve…