A5050829176- Shoulder Injury and Treatment
- Bone fractures and treatments
- Orthopedic Surgery and Rehabilitation
- Knee injuries and reconstruction techniques
- Orthopaedic implants and arthroplasty
- Total Knee Arthroplasty Outcomes
- Sports injuries and prevention
- Spinal Fractures and Fixation Techniques
- Lower Extremity Biomechanics and Pathologies
- Shoulder and Clavicle Injuries
- Tendon Structure and Treatment
- Hip disorders and treatments
- Bone health and osteoporosis research
- Veterinary Equine Medical Research
- Medical Imaging and Analysis
- Foot and Ankle Surgery
- Bone and Joint Diseases
- Spine and Intervertebral Disc Pathology
- Muscle activation and electromyography studies
- Nerve Injury and Rehabilitation
- Automotive and Human Injury Biomechanics
- Bone Metabolism and Diseases
- Academic Research in Diverse Fields
- Gaze Tracking and Assistive Technology
- Bone Tissue Engineering Materials
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
2013-2024
Universidade de São Paulo
2011-2024
Brazilian Synchrotron Light Laboratory
2019
Universitat de Barcelona
2017
Instituto Nacional de Traumatologia e Ortopedia
2005-2015
Universidade Brasil
2009-2012
Wythenshawe Hospital
2007-2009
Biomechanics Institute of Valencia
2003
LIM College
2002
Governo do Estado de Mato Grosso
2001
Recent studies clearly characterize the anatomical parameters of knee anterolateral ligament (ALL). The potential clinical importance this is exemplified by some patients with possible combined Anterior Cruciate Ligament (ACL) and ALL rupture who do not progress satisfactorily following isolated ACL reconstruction. Previous biomechanical have assessed resistance in order to address reconstruction strategies; however, these reported conflicting results. Thus, study aimed evaluate linear means...
Abstract Hyperbaric oxygen therapy (HBOT) has proven successful in wound healing. However, its potential effects on anterior cruciate ligament (ACL) injuries remain uncertain. This study aimed to investigate the impact of HBOT graft healing following ACL reconstruction rabbits. Male New Zealand rabbits underwent and were randomly divided into two groups: group ambient air group. The received 100% at 2.5 atmospheres absolute for 2 h daily 5 consecutive days, starting from first day after...
Investigamos a influência do ligamento da cabeça fêmur no arco de movimento flexão-extensão e adução-abdução quadril. Para isso foram realizadas medidas em 7 quadris cadáveres humanos, inicialmente com os ligamentos íntegros; posteriormente artroscopia seguir seccionados também através técnica artroscópica. Foi utilizado para um dispositivo elaborado se medir o submetido torque 2,5 N.m . observado aumento significância estatística abdução-adução às custas adução. Concluímos que influi...
A kinematic study was performed to examine the influence of elbow position on range supination and pronation forearm. The ranges were measured in 50 volunteers (25 men 25 women) using a custom-designed jig which constrained unwanted confounding movements limb. Measurements taken with full extension, 45° flexion, 90° flexion flexion. data showed reciprocal relationship between forearm depended degree As is flexed, maximum angle increases while decreases ( p<0.001). converse true as extended
The objectives of this study were to develop a pointing device controlled by head movement that had the same functions as conventional mouse and evaluate performance proposed when operated quadriplegic users.Ten individuals with cervical spinal cord injury participated in functional evaluations developed device. consisted video camera, computer software, target attached front part cap, which was placed on user's head. software captured images coming from camera processed them aim determining...
Our goal was to develop a novel technique for inducing Achilles tendinopathy in animal models which more accurately represents the progressive histological and biomechanical characteristic of chronic humans. In this research study, forty-five rabbits were randomly assigned three groups given bilateral injections. Low dose (LD group) (n = 18) underwent with low-dose (0.1mg) injections collagenase that separated by two weeks, high group (HD) traditional single high-dose (0.3mg) injections,...
O equilíbrio é o processo de manutenção do centro pressão (CP), projeção gravidade no solo, dentro da área base suporte corpo. Este estudo avalia controle postural em pacientes portadores lesão unilateral ligamento cruzado anterior joelho e indivíduos saudáveis, através parâmetros pressão. Dezenove saudáveis entre 18 30 anos dezenove 15 33 foram avaliados empregando sensores FSCAN MAT® (Tekscan®, Boston, MA, USA). Todos os realizaram quatro testes estáticos diferentes com apoio unilateral,...
Static and dynamic pedobarometric evaluations were performed on the feet of 100 normal adult white men aged from 20 to 49 years old (mean = 29.9 +/- 6.9), using version 3.848 F-SCAN system. All new pressure sensor insoles with standardized conditions. Maximum vertical forces plantar peak measurements taken during 7.88 seconds each walking in a straight line at subject's own pace standing. Feet separated based their side lower limb dominance. The means three consecutive alternate tests...
Osteoporosis is defined by the National Institutes of Health as a skeletal disorder characterized compromised bone strength, increasing fracture risk. Samples vertebral cancellous were extracted from human cadavers T12 region. The comparative pre-selection into three groups was performed using calcaneal ultrasonometry and evaluated image analysis: microtomography, X-ray diffraction, optical microscopy e scanning electron microscopy. results showed, for diseased bone, degradation, reduction...
Introduction Biomechanical assessment of trabecular bone microarchitecture contributes to the evaluation fractures risk associated with osteoporosis and plays a crucial role in planning preventive strategies. One most widely clinical technics used for diagnosis by health professionals is dual-energy X-ray absorptiometry (DEXA). However, doubts about its accuracy motivate introduction congruent technical analysis such as calcaneal ultrasonometry (Quantitative Ultrasonometry - QUS). Methods...
Anterior cruciate ligament ruptures are frequent, especially in sports. Surgical reconstruction with autologous grafts is widely employed the international literature. Controversies remain respect to technique variations as continuous research for improvement takes place. One of these anatomical double bundle technique, which performed instead conventional single technique. More recently, there has been a tendency towards positioning two bundles through bone tunnels femur and tibia...
Purpose: To compare biomechanical characteristics at different regions of the equine third metacarpal bone using standardized test specimens. Methods: Standardized specimens were made from samples collected each bone. Cortical lateral (ts4L) and medial (ts4M) cortices mid-diaphysis trabecular distal (ts3) proximal (ts2) epiphyses. A sample corresponding to mid was also (ts1). Test submitted compressive testing for determination comparison properties. Results: Stress modulus elasticity ts4L...
Osteoporosis is an osteometabolic disease, which promotes structural degradation of bone tissue and reduction mineral density. We reported here a mechanical resistance assay from normal, osteopenic osteoporotic trabecular vertebral bones human cadavers. performed compressed test on ninety samples, evaluating Young's modulus X-ray microtomography to measure volume fraction thickness. This experimental data are employed for computing the orthotropic macroscopic behavior using known analytical...
The number of laparoscopic procedures increases annually with an estimated 3% complications, one third them linked to Verres' needle or trocar insertion. safety and efficacy ports insertion during surgery may be related the technique but also design. This study aims compare physical parameters abdominal wall penetration for 5 different trocars.
PURPOSE AND METHODS: In order to determine forces acting upon an articular joint during hand rehabilitation, a dynamic splint was built and connected dynamometer (capable of measuring in the range 0 - 600 gf). Through trigonometric calculation, authors measured flexing force proximal interphalangeal middle finger at 30°, 45°, 60°, 90° flexion. Measurements were obtained population 40 voluntary adults, 20 females males, This correlated with age, sex, anthropometric measures. RESULTS: Force...
OBJETIVO: Apresentar um dispositivo biomecânico para o estudo da reconstrução do ligamento patelofemoral medial (LPFM) e sua isometricidade. MÉTODOS: Foi desenvolvido sistema acessível, que permite a aplicação de forças fisiológicas não no joelho, através braço mecânico pesos contrapesos, possibilitando execução diferentes estudos, além ter medidas bastante preciso aferição distâncias entre estruturas análise dos experimentos. Este artigo descreve montagem deste sistema, sugerir algumas...