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Reduction and Fixation of Sacroiliac joint Dislocation by the Combined Use of S1 Pedicle Screws and an Iliac Rod
Published in Kai-Uwe Lewandrowski, Donald L. Wise, Debra J. Trantolo, Michael J. Yaszemski, Augustus A. White, Advances in Spinal Fusion, 2003
Kai-Uwe Lewandrowski, Donald L. Wise, Debra J. Trantolo, Michael J. Yaszemski, Augustus A. White
Figure 6 Lateral plain films of a 44-year-old male with ankylosing spondylitis demonstrates (A) C6-7 cervical fracture with obvious anterior vertebral body fusion and (B) cervical stabilization of the C6-7 bodies after fracture stabilization using lateral mass screws and spinous process wires. Complications
Effects of using a document holder when typing on head excursion and neck muscle activity among computer users with and without neck pain
Published in International Journal of Occupational Safety and Ergonomics, 2021
Ambusam Subramaniam, Devinder Kaur Ajit Singh
A total of 52 participants (26 computer users with neck pain and 26 computer users without neck pain) aged between 24 and 40 years were recruited from banks and accounting firms. The participants met the following inclusion and exclusion criteria [17,21]. They worked at a computer for a minimum of 4 h/day. To be included in the ‘without neck pain’ category, participants should not have any pain on the day of testing and should not have had any discomfort in the neck and shoulders for 7 days prior to testing. If a participant had neck pain in the past 12 months, the said pain should have been resolved at least 3 months prior to the study. To be included in the ‘with neck pain’ category, a participant should have had pain in the neck and shoulder region which lasted longer than 1 month during the past year and had neck pain in the past 7 days and on the testing day itself. Participants with a history of cervical fracture or trauma, cervical surgery, idiopathic scoliosis, requiring bifocal or graduated glasses to use a computer and on medications (analgesic, muscle relaxant and neuroleptics) were excluded from the study. The study procedures were explained to the participants and written consent was obtained from the participants prior to the study.
Effect of unifocal versus multifocal lenses on cervical spine posture in patients with presbyopia
Published in International Journal of Occupational Safety and Ergonomics, 2019
Rami L. Abbas, Mohamad T. Houri, Mohammad M. Rayyan, Hamada Ahmad Hamada, Ibtissam M. Saab
Thirty subjects (18 females and 12 males) were enrolled and assessed for their eligibility to participate in the study. The participants were patients in an ophthalmology clinic at a primary healthcare center in Lebanon. Twelve of the subjects were males and 18 were females. Their mean ± SD for age, weight, height and body mass index (BMI) was 56.55 ± 5.27 years, 83.77 ± 8.18 kg, 171 ± 4.82 cm and 28.62 ± 2.21 respectively. Their age range was from 40 to 64 years. This range was specifically chosen because presbyopia is common at such an age interval [7]. The participants were chosen if they wore spectacles for both near and far sightedness. Subjects were excluded if they had severe faulty posture, history of temporomandibular joint trauma and disorder, history of cervical fracture/trauma, cervical surgery, idiopathic scoliosis, bone cancer, spasmodic torticollis or neurologic motion disorder, disease of the central nervous system, any hearing impairment requiring the use of a hearing aid and any visual impairment not corrected by glasses. Moreover, pregnant females were excluded since the procedure required X-ray exposure, which may negatively affect the fetus. Written consent was obtained from all subjects. Ethical approval was obtained from the institutional review board at Beirut Arab University (approval code: 2016H-0022-HS-R-128). The study followed the Guidelines of Declaration of Helsinki on the conduct of human research, and was conducted from March to June 2016.
Texture analysis based on Gabor filters improves the estimate of bone fracture risk from DXA images
Published in Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, 2018
Rui-Sheng Lu, Elaine Dennison, Hayley Denison, Cyrus Cooper, Mark Taylor, Murk J. Bottema
Although aBMD alone may not provide an accurate prediction of fracture risk, other information available from DXA images such as the femoral geometry of bone may provide further information regarding the risk of fracture either on its own or in combination with aBMD (Pulkkinen et al. 2010). Researchers have explored the influence of geometric parameters on the risk of fracture of the femur. Pulkkinen et al. proposed that the aBMD T-score ≤ −2.5 criterion discriminates the risk of trochanteric fractures, whereas geometric risk factors are able to discriminate cervical fracture cases from control cases with similar aBMD (Pulkkinen et al. 2010). Hip axial length, femoral length, femoral neck width and neck-shaft angle (NSA) are the most examined geometric parameters with respect to fracture risk, but findings have been inconsistent (Dinçel et al. 2008). For instance, some studies observed that fracture risk is associated with hip axial length (Faulkner et al. 1994; Gnudi et al. 1999), but some did not (Alonso et al. 2000; Pande et al. 2000). Michelotti et al. reported that fractured cases had thinner femoral cortices, larger femoral heads and larger femoral neck diameters than controls (Michelotti & Clark 1999). Dinçel et al. observed that there was a significant increase in the ratio between femoral neck width and femoral length in the fracture group (Dinçel et al. 2008). A wider femoral neck and shaft, and a bigger neck-shaft angle were observed by Gregory et al. where both male and female fracture subjects were compared with controls (Gregory & Aspden 2008). Some of these geometrical parameters are highly correlated (Gnudi et al. 1999). Some studies have observed that femur bone dimensions continue to change with age so that it is difficult to fit these geometrical parameters to individual DXA images (Heaney et al. 1997; Beck et al. 2000). However, little has been done to explore whether additional information collected as part of a femoral DXA scan improves the prediction rate for all fractures, not just of the femur.