Search results for "tibia"
showing 10 items of 212 documents
Quantitative value of medial femoro-tibial width (FTW) with weight-bearing technique. Our experience with a modified Lyon-Schuss view.
2010
In the period between September 2008 and February 2009, we evaluated with knee radiography a group of 30 patients with known knee osteoarthritis (OA). For each patient, two weight-bearing views of the knee were acquired, the first with a standard antero-posterior (AP) technique, the latter with a posteroanterior (PA) technique with a 10° skull-caudal incidence. The radiographs obtained were evaluated blinded by two radiologist who assessed the medial femoro-tibial width (FTW). Statistical analysis of the results, carried out with the “t” Student test, showed a statistically significant difference about FTW values between the two radiographic views (t = 5.2331 for reader 1 and t=5.1970 for r…
Bypass distal de miembros inferiores: análisis de resultados en un servicio de Cirugía Cardiovascular de la Comunidad Valenciana.
2015
INTRODUCCIÓN. La técnica del bypass distal (BPD), con más de medio siglo de historia es actualmente un recurso todavía muy útil para el salvamento de las extremidades isquémicas, si bien los avances tecnológicos actuales permiten cada vez más opciones menos agresivas (técnicas endovasculares). Tanto la forma de presentación temporal y la existencia de cirugías previas en el miembro afecto son aspectos prioritarios a conocer durante la valoración de la isquemia de miembros inferiores. En la literatura aunque sí que se han estudiado estos factores para el bypass infrainguinal en general, no hay una información clara aplicada solo al BPD. HIPÓTESIS. En la cirugía de revascularización de miembr…
Regular Strength and Sprint Training Counteracts Bone Aging: a 10- year Follow-up in Male Masters Athletes
2021
According to cross-sectional and interventional studies, high-intensity strength and impact-type training provide a powerful osteogenic stimulus even in old age. Longitudinal evidence on the ability of high-intensity training to attenuate age-related bone deterioration is currently lacking, however. This follow-up study assessed the role of continued strength and sprint training on bone aging in 40- to 85-year-old male sprinters (n=69) with long-term training background. pQCT-derived bone structural, strength and densitometric parameters of the distal tibia (5% distal-proximal tibia length) and tibial midshaft (50% length) were assessed at baseline and after 10 years. The groups of well-tra…
Influence of nicotine on machined- and anodized-surface implants. Histometric analysis
2017
Background The nicotine may generate a influence on bone repair and longevity of dental implants. This fact makes studies to improve the surface of the implants are constantly conducted. This study aimed to evaluate the influence of subcutaneous nicotine injection in the osseointegration process on different implant surfaces, through histomorphometric analysis. Material and Methods Therefore, twenty-two male rabbits were randomly distributed into two groups according to the subcutaneous injections: (1) nicotine, 3 mg/day/kg and (2) 0.9% NaCI, 3 mL/day/kg, three times a day. Subgroups were then designated - machined and anodized dental implants were installed in the right and left tibia bone…
Evaluation of the primary stability in dental implants placed in low density bone with a new drilling technique, osseodensification: an in vitro study
2020
Background Primary stability is an important key determinant of implant osseointegration. We investigated approaches to improve primary implant stability using a new drilling technique termed osseodensification (OD), which was compared with the conventional under-drilling (UD) method utilized for low-density bones. Material and Methods We placed 55 conical internal connection implants in each group, in 30 low-density sections of pig tibia. The implants were placed using twist drill bits in both groups; groups Under Drilling (UD) and Osseodensification (OD) included bone sections subjected to conventional UD and OD drilling, respectively. Before placing the implants, we randomized the bone s…
Valoración biomecánica de la columna vertebral basada en el análisis funcional de diversas actividades de la vida diaria
2018
En la literatura se han utilizado pruebas dinámicas sobre movimientos sencillos, como la flexo-extensión del tronco o la marcha, para distinguir de manera objetiva entre sujetos sanos y pacientes con dolor lumbar de causa inespecífica. No tenemos constancia de estudio alguno que haya registrado de manera simultánea los patrones de actividad neuromuscular de la musculatura extensora de la espalda, musculatura abdominal, glúteos e isquiotibiales y los patrones de movimiento lumbo-pélvico, estudiando el efecto de la velocidad y carga, mediante técnicas no invasivas durante actividades de la vida diaria, y los haya comparado entre distintos grupos de pacientes con dolor lumbar y alteraciones es…
Bone-Healing Pattern on the Surface of Titanium Implants at Cortical and Marrow Compartments in Two Topographic Sites: an Experimental Study in Rabbi…
2018
This study evaluates the bone-healing patterns on the surface of titanium implants at the cortical and marrow compartments of bicortically-installed implants in the diaphysis and metaphysis of rabbit tibiae. In 27 New Zealand rabbits, two implants, one for each macro-design and with equal resorbable blasted media (RBM) implant surfaces, were randomly implanted in the diaphysis or metaphysis of each tibia. The flaps were sutured to allow submerged healing. The animals were sacrificed after two, four, or eight weeks, with nine weeks used for the period of healing. Ground sections were prepared and analyzed. No statistically significant differences were found between the two groups for newly f…
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 …
Composite femoro-tibial bypass as alternative solution in complicated revascolarization: Case report
2021
Introduction Peripheral Arterial Disease (PAD) in diabetic patients is a significant cause of Morbility. Long arterial occlusion in patient previously treated can require unusual and complex solution. Herein we report a case of complicated bypass in diabetic patient with history of bypass for bilateral popliteal aneurysm. Presentation of case A 51-year-old male, smoker, with hypertension and diabetes mellitus was referred to our hospital for rest pain in left limb and peripheral cyanosis. Ultrasound doppler (US) showed an occlusion after common femoral artery with patency of Anterior-tibial artery (ATA) two centimeters after the origin. The unavailability of adequate autologous conduit nece…
Differential effects of sex hormones on peri- and endocortical bone surfaces in pubertal girls.
2005
Context: The role of sex steroids in bone growth in pubertal girls is not yet clear. Bone biomarkers are indicators of bone metabolic activity, but their value in predicting bone quality has not been studied in growing girls. Objective: This study examines the association of sex hormones and bone markers with bone geometry and density in pubertal girls. Design: The study was designed as a 2-yr longitudinal study in pubertal girls. Measurements were performed at baseline and at 1and 2-yr follow-ups. Setting: The study was conducted in a university laboratory. Participants: A total of 258 10- to 13-yr-old healthy girls at the baseline participated. Methods:Peripheralquantitativecomputedtomogr…