Search results for "Intramedullary"
showing 10 items of 46 documents
Intramedullary nailing vs. palmar locked plating for unstable dorsally comminuted distal radius fractures: A biomechanical study
2010
Abstract Background The purpose of this study was to compare the stability of a 2.4 mm palmar locking compression plate and a new intramedullary nail-plate-hybrid Targon DR for dorsally comminuted distal radius fractures. Methods An extraarticular 10 mm dorsally open wedge osteotomy was created in 8 pairs of fresh frozen human radii to simulate an AO–A3-fracture. The fractures were stabilized using one of the fixation methods. The specimens were loaded axially with 200 N and dorsal-excentrically with 80 N. 2000 cycles of dynamic loading and axial loading-to-failure were performed. Findings Axial loading revealed that intramedullary osteosynthesis (Targon DR: 369 N/mm) was significantly ( p …
Intramedullary spinal cord tumor presenting as the initial manifestation of metastatic colon cancer: case report and review of the literature
2007
Study design: Case reports and review of the literature. Objective: Intramedullary spinal cord metastases (ISCMs) are rare type of central nervous system (CNS) involvement of systemic malignant tumors. Since the advent of new neuroradiological techniques, their detection have become increasingly diagnosed in recent years and, although somewhat controversial, surgical treatment has been considered a valid option. Setting: Neurosurgical Clinic, Department of Clinic Neuroscience, University of Palermo, Italy. Method: The authors describe the case of a 61-year-old woman who was admitted presenting withprogres sive tetraplegia. Investigations revealed an intramedullary spinal cord lesion at the …
Is the Erich arch bar the best intermaxillary fixation method in maxillofacial fractures? : a systematic review
2015
Background Intermaxillary fixation is used to achieve proper occlusion during and after oral and maxillofacial fracture surgery. The aim of this systematic review was to compare Erich arch bar fixation with other intermaxillary fixation methods in terms of the operating time, safety during installation, oral health maintenance and occlusal stability. Material and Methods An electronic online search was conducted of the Scirus, PubMed, Ovid, Cochrane Library and VHL databases. A clinical trial dating from the inception of the data bases until August 2013 was selected. Studies that compared Erich arch bars with other intermaxillary fixation methods in patients older than 18 years-old were inc…
Concentration of chromium and nickel in serum of patients with orthopedic implant: An analysis
2021
Introduction: Surgical corrections of fracture using fixation devices made from various alloys (stainless steel, cobalt-chromium alloys, and titanium) carry a risk of these alloys leaching into circulation, potentially causing undesired health effects. Hence, monitoring the levels of metal ions in the serum of postoperative patients with metal implants is mandated. Materials and Methods: Blood samples from seventy patients with orthopedic metal implants was collected after a minimum postoperative period of 1 year. The samples were subjected to triple acid digestion and serum levels of chromium and nickel were analyzed using inductively coupled plasma-mass spectrometry. Results: The concentr…
Experimentelle Bestimmung der Gleitreibungskräfte beim Einschlagen von Oberschenkelmarknägeln
1990
No data have published concerning the procedure of driving in intramedullary nails. An extensive experimental device consisting of a contact-free distance measurement, a dynamograph connected to strain gages and an accelerometer now enabled this investigation. Among other things we determined the range of sliding friction for each stroke at different levels of nail-progression. Depending of the depth of nail-progression forces between 200 N und 400 N were measured. When the nail is stuck these values rise to over 1000 N. The sliding-process lasted between 10 ms and 20 ms. Knowledge of these data is of major importance for improvement of surgical technique and possible development of mechani…
THE CHALLENGE OF OPEN TIBIAL SHAFT FRACTURES: WHEN TOMANAGE WITH EXTERNAL FIXATION AND WHEN TO USEINTRAMEDULLARY NAILING?
2020
Treatment of open tibial shaft fractures is challenging. External fixation (EF) is comparatively safe in treating these open injuries with the main advantages of easy application, minimal additional disruption, and convenient subsequent soft tissue repair. Tibial intramedullary nailing (IM) is optimal for the treatment of open tibial fractures. This study aims to report the outcomes of our multi-center experience in the management of open tibial shaft fractures, evaluating the efficacy and safety of using either the external fixation (EF) or intramedullary nailing (IM).In this study, clinical-radiographic results were evaluated in 26 cases of open fractures treated with an external fixator …
Pathogenesis and clinical relevance of bone marrow embolism in medullary nailing — demonstrated by intraoperative echocardiography
1993
Abstract For the clarification of pulmonary impairment after medullary nailing of femoral fractures, the intramedullary pressure in the femoral cavity during the operative procedure was investigated. In addition, an intraoperative transoesophageal echocardiography was performed which revealed two phenomena occurring once the intramedullary pressure had increased: snow-flurry and configured emboli. An experimental study in sheep was performed in order to define the substrata of the sonographic echoes. The level of intrafemoral pressure which would result in bone marrow intravasation and the substrata of the echocardiographic echoes were studied in sheep by applying pressure to the femoral ca…
Femoral neck’s fracture in Fahr’s Syndrome: case report
2016
Fahr's syndrome, also known as "Bilateral Striopallidodentate Calcinosis" (BSPDC) primitive, is a rare neurological disease characterized by the presence of idiopathic, bilateral, symmetrical and abnormal deposition of calcium in areas of the brain that control movements including the basal ganglia, dentate nuclei of the cerebellum, nuclei of thalamus and semi-oval center. We describe a case of a 76-year-old male patient underwent reduction and fixation of a subtrochanteric fracture with intramedullary nail. During post-operative rehabilitation therapists's patient management was difficult due to obvious extrapyramidal symptoms characterized by dysarthria, rigidity, bradykinesia, postural i…
Radiation exposure to the hands and the thyroid of the surgeon during intramedullary nailing.
1998
Abstract During 41 procedures of intramedullary nailing of femoral and tibial fractures, the primary surgeon and the first assistant wore ring dosimeters on their dominant index fingers. While the average fluoroscopy time per procedure was 4.6 min, the average dose of radiation to the dominant hand of the primary surgeon was 1.27 mSv and 1.19 mSv to the first assistant. The dose limit for the extremities is 500 mSv per year, as recommended by the International Commission on Radiological Protection. Extrapolation of the mean dose of the primary surgeon and first assistent per procedure of 1.23 mSv leads to the result that the recommended dose limit of 500 mSv would only be exceeded if more t…
Randomized prospective study on the influence distal block and Gamma 3 nail on the treatment of intertrochanteric fractures of femur
2015
Abstract Objective The purpose of this study is to assess the need to lock the Gamma 3 nail (Stryker, Mahwah, New Jersey, USA) distally for intertrochanteric fractures of femur 31-A1 and 31-A2 of the AO. Materials and methods Details were recorded on a sample of 177 patients with intertrochanteric femoral fractures treated in our hospital by a standard Gamma nail between June 2011 and January 2013. A prospective study was conducted by randomizing patients by year of birth, even numbers with, or odd numbers without, and distal locking, forming two groups of 90 and 87 fractures, respectively. Results The patients treated with a distal locking nail had an increased incidence of medical complic…