The Experts below are selected from a list of 210 Experts worldwide ranked by ideXlab platform
Unal Kuzgun - One of the best experts on this subject based on the ideXlab platform.
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Conservative treatment of fractures of the thoracolumbar spine
International Orthopaedics, 2005Co-Authors: Mehmet Tezer, R. Erden Erturer, Cagatay Ozturk, Irfan Ozturk, Unal KuzgunAbstract:We reviewed 48 patients with thoracolumbar fractures treated conservatively between 1988 and 1999. The average follow-up was 77.5 (31–137) months and average patient age (23 women, 25 men) was 46 (18–76) years. Twenty-nine patients suffered a fall from a height and 13 patients were injured in traffic accidents. Thirty-two patients had compression-type fractures and 16 burst-type fractures. There were no neurological deficits. Twenty-nine patients were treated by orthosis, 13 by Body Cast and six by bed rest. In addition to pain and functional scoring, we measured a number of radiographic parameters at the time of admission and at latest follow-up and compared the values. In patients with compression fractures there were significant changes in scoliosis angle and wedging index ( p
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conservative treatment of fractures of the thoracolumbar spine
International Orthopaedics, 2005Co-Authors: Mehmet Tezer, Cagatay Ozturk, Irfan Ozturk, Erden R Erturer, Unal KuzgunAbstract:We reviewed 48 patients with thoracolumbar fractures treated conservatively between 1988 and 1999. The average follow-up was 77.5 (31–137) months and average patient age (23 women, 25 men) was 46 (18–76) years. Twenty-nine patients suffered a fall from a height and 13 patients were injured in traffic accidents. Thirty-two patients had compression-type fractures and 16 burst-type fractures. There were no neurological deficits. Twenty-nine patients were treated by orthosis, 13 by Body Cast and six by bed rest. In addition to pain and functional scoring, we measured a number of radiographic parameters at the time of admission and at latest follow-up and compared the values. In patients with compression fractures there were significant changes in scoliosis angle and wedging index (p<0.05). The mean pain score was 1.66 and mean functional score 1.03. In patients with burst fractures, vertebral index, wedging index and height loss increased after treatment (p<0.05). The mean pain score was 1.26 and functional score 0.93. Compression fractures with kyphosis angle <30° are supposed to be stable and can be treated conservatively. If the kyphosis angle is more than 30°, magnetic resonance imaging (MRI) should be performed, and if the posterior ligamentous complex is damaged, surgery should be considered. In burst fractures, MRI should always be performed and conservative treatment should only be considered if there is no neurological deficit and the ligaments are intact.
Jiin-haur Chuang - One of the best experts on this subject based on the ideXlab platform.
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Superior mesenteric artery syndrome as a complication in hip spica application for immobilization: report of a case.
Journal of the Formosan Medical Association = Taiwan yi zhi, 1992Co-Authors: Szu-tah Chen, Jiin-haur ChuangAbstract:A 10-year-old girl who had a pelvic and femoral osteotomy for congenital dislocation of her right hip was immobilized with a hip spica. On the 28th postoperative day, she had upper abdominal pain, distention and bilious vomiting. An upper GI series demonstrated complete obstruction of the duodenum at the third portion of the duodenum in a supine position; however, the barium passed the obstruction site slowly when the patient assumed a lateral or prone position. She was successfully treated conservatively with nasogastric decompression, fluid replacement, proper positioning and hyperalimentation. Superior mesenteric artery syndrome is a rare complication in patients immobilized in a Body Cast or hip spica. Early diagnosis and proper treatment usually leads to an uneventful convalescence.
Christian Raphel - One of the best experts on this subject based on the ideXlab platform.
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Contribution of tactile and interoceptive cues to the perception of the direction of gravity.
Cognitive Brain Research, 2004Co-Authors: Marion Trousselard, Vincent Nougier, Christian Raphel, Pierre-alain Barraud, Corinne CianAbstract:Without relevant visual cues, the Subjective Visual Vertical (SVV) is biased in roll tilted subjects toward the Body axis (Aubert or A-effect). This effect is generally ascribed to changes in the vestibular and somatosensory inputs following a Body tilt. This study focused on the contribution of interoception and tactile cues in the SVV. The Body-Cast technology and gastric fullness were used to obtain a diffuse tactile stimulation and an overload stomach stimulation, respectively. Fifteen subjects placed in a tilt-chair were rolled sideways from 0 degrees to 90 degrees. They were asked to adjust a luminous line to the vertical under two Body restriction conditions (strapped vs. Body-Cast) and two stomach load conditions (empty vs. full). Results showed (1) an improvement in the SVV judgment when somaesthetic cues were available in the full stomach condition (p < 0.001), (2) an increased A-effect for the higher Body tilt values in the Body-Cast condition (beyond 45 degrees, p < 0.001), and (3) a smaller disrupting effect of the Body-Cast in the SVV judgment in the full stomach condition (p < 0.05). Since the vestibular system produced the same gravity response in all conditions, it can be stated that somaesthetic cues are involved in the SVV. Tactile mechanoreceptors may have contributed by detecting the changing pattern of pressures generated on the skin that results from changes in Body orientation. The stomach load may act through the inertial forces exerted against the gravity load when the stomach is full by the mechanoreceptors in the fundus. Thus, the somaesthetic system can indicate the direction of gravity via patterns of pressure within and at the surface of the Body.
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Contribution of tactile and interoceptive cues to the perception of the direction of gravity.
Brain research. Cognitive brain research, 2004Co-Authors: Marion Trousselard, Vincent Nougier, Christian Raphel, Pierre-alain Barraud, Corinne CianAbstract:Without relevant visual cues, the Subjective Visual Vertical (SVV) is biased in roll tilted subjects toward the Body axis (Aubert or A-effect). This effect is generally ascribed to changes in the vestibular and somatosensory inputs following a Body tilt. This study focused on the contribution of interoception and tactile cues in the SVV. The Body-Cast technology and gastric fullness were used to obtain a diffuse tactile stimulation and an overload stomach stimulation, respectively. Fifteen subjects placed in a tilt-chair were rolled sideways from 0° to 90°. They were asked to adjust a luminous line to the vertical under two Body restriction conditions (strapped vs. Body-Cast) and two stomach load conditions (empty vs. full). Results showed (1) an improvement in the SVV judgment when somaesthetic cues were available in the full stomach condition (p
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Contribution of somesthetic cues to the perception of Body orientation and subjective visual vertical
Perception & Psychophysics, 2003Co-Authors: Marion Trousselard, Corinne Cian, Vincent Nougier, Simon Pla, Christian RaphelAbstract:Without relevant visual cues, the subjective visual vertical (SVV) is biased in roll-tilted subjects toward the Body axis (Aubert or A-effect). This study focused on the role of the somatosensory system with respect to the SVV and on whether somesthetic cues act through the estimated Body tilt. The Body Cast technology was used to obtain a diffuse tactile stimulation. An increased A-effect was expected because of a greater underestimation of the Body position in the Body Cast. Sixteen subjects placed in a tilt chair were rolled sideways from 0° to 105°. They were asked to verbally indicate their subjective Body position and then to adjust a luminous line to the vertical under strapped and Body Cast conditions. Results showed a greater A-effect ( p
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Contribution of somesthetic cues to the perception of Body orientation and subjective visual vertical.
Perception and Psychophysics, 2003Co-Authors: Marion Trousselard, Corinne Cian, Vincent Nougier, Simon Pla, Christian RaphelAbstract:Without relevant visual cues, the subjective visual vertical (SVV) is biased in roll-tilted subjects toward the Body axis (Aubert or A-effect). This study focused on the role of the somatosensory system with respect to the SVV and on whether somesthetic cues act through the estimated Body tilt. The Body Cast technology was used to obtain a diffuse tactile stimulation. An increased A-effect was expected because of a greater underestimation of the Body position in the Body Cast. Sixteen subjects placed in a tilt chair were rolled sideways from 0 degrees to 105 degrees. They were asked to verbally indicate their subjective Body position and then to adjust a luminous line to the vertical under strapped and Body Cast conditions. Results showed a greater A-effect (p < .001) but an overestimation of the Body orientation (p < .01) in the Body Cast condition for the higher tilt values (beyond 60 degrees). Since the otolith organs produced the same gravity response in both conditions, errors were due to a change in somesthetic cues. Visual and postural errors were not directly related (no correlation). However, the angular distance between the apparent Body position and the SW remained stable, suggesting that the change in somatosensory pattern inputs has a similar impact on the cognitive processes involved in assessing the perception of external space and the sense of self-position.
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Contribution of somesthetic information to the perception of Body orientation in the pitch dimension.
The Quarterly journal of experimental psychology. A Human experimental psychology, 2003Co-Authors: Lionel Bringoux, Vincent Nougier, Pierre-alain Barraud, Ludovic Marin, Christian RaphelAbstract:This study investigated the contribution of otolithic and somesthetic inputs in the perception of Body orientation when pitching at very slow velocities. In Experiment 1, the subjects' task was to indicate their subjective postural vertical, in two different conditions of Body restriction, starting from different angles of Body tilt. In the "strapped" condition, subjects were attached onto a platform by means of large straps. In the "Body Cast" condition, subjects were completely immobilized in a depressurized system, which attenuates gravity-based somesthetic cues. Results showed that the condition of Body restriction and the initial tilt largely influenced the subjective postural vertical. In Experiment 2, subjects were displaced from a vertical position and had to detect the direction of Body tilts. Results showed that the threshold for the perception of Body tilt was higher when subjects were immobilized in the Body Cast and when they were tilted backward. Experiment 3 replicated the same protocol from a supine starting position. Compared to results of Experiment 2, the threshold for the perception of Body tilt decreased significantly. Overall, these data suggested that gravity-based somesthetic cues are more informative than otolithic cues for the perception of a quasi-static Body orientation.
Mitchel B Harris - One of the best experts on this subject based on the ideXlab platform.
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operative compared with nonoperative treatment of a thoracolumbar burst fracture without neurological deficit a prospective randomized study with follow up at sixteen to twenty two years
Journal of Bone and Joint Surgery American Volume, 2014Co-Authors: Kirkham B Wood, Glenn R Buttermann, Rishabh Phukan, Christopher C Harrod, Amir A Mehbod, Brian Shannon, Christopher M Bono, Mitchel B HarrisAbstract:Background: Studies comparing operative with nonoperative treatment of a stable burst fracture of the thoracolumbar junction in neurologically intact patients have not shown a meaningful difference at early follow-up. To our knowledge, longer-term outcome data have not before been presented. Methods: From 1992 to 1998, forty-seven consecutive patients with a stable thoracolumbar burst fracture and no neurological deficit were evaluated and randomized to one of two treatment groups: operative treatment (posterior or anterior arthrodesis) or nonoperative treatment (a Body Cast or orthosis). We previously reported the results of follow-up at an average of forty-four months. The current study presents the results of long-term follow-up, at an average of eighteen years (range, sixteen to twenty-two years). As in the earlier study, patients at long-term follow-up indicated the degree of pain on a visual analog scale and completed the Roland and Morris disability questionnaire, the Oswestry Disability Index (ODI) questionnaire, and the Short Form-36 (SF-36) health survey. Work and health status were obtained, and patients were evaluated radiographically. Results: Of the original operatively treated group of twenty-four patients, follow-up data were obtained for nineteen; one patient had died, and four could not be located. Of the original nonoperatively treated group of twenty-three patients, data were obtained for eighteen; two patients had died, and three could not be located. The average kyphosis was not significantly different between the two groups (13 for those who received operative treatment compared with 19 for thosetreatednonoperatively).Medianscoresforpain(4cmfortheoperativegroupand1.5cmforthenonoperativegroup; p = 0.003), ODI scores (20 for the operative group and 2 for the nonoperative group; p <0.001) and Roland and Morris
Mehmet Tezer - One of the best experts on this subject based on the ideXlab platform.
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Conservative treatment of fractures of the thoracolumbar spine
International Orthopaedics, 2005Co-Authors: Mehmet Tezer, R. Erden Erturer, Cagatay Ozturk, Irfan Ozturk, Unal KuzgunAbstract:We reviewed 48 patients with thoracolumbar fractures treated conservatively between 1988 and 1999. The average follow-up was 77.5 (31–137) months and average patient age (23 women, 25 men) was 46 (18–76) years. Twenty-nine patients suffered a fall from a height and 13 patients were injured in traffic accidents. Thirty-two patients had compression-type fractures and 16 burst-type fractures. There were no neurological deficits. Twenty-nine patients were treated by orthosis, 13 by Body Cast and six by bed rest. In addition to pain and functional scoring, we measured a number of radiographic parameters at the time of admission and at latest follow-up and compared the values. In patients with compression fractures there were significant changes in scoliosis angle and wedging index ( p
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conservative treatment of fractures of the thoracolumbar spine
International Orthopaedics, 2005Co-Authors: Mehmet Tezer, Cagatay Ozturk, Irfan Ozturk, Erden R Erturer, Unal KuzgunAbstract:We reviewed 48 patients with thoracolumbar fractures treated conservatively between 1988 and 1999. The average follow-up was 77.5 (31–137) months and average patient age (23 women, 25 men) was 46 (18–76) years. Twenty-nine patients suffered a fall from a height and 13 patients were injured in traffic accidents. Thirty-two patients had compression-type fractures and 16 burst-type fractures. There were no neurological deficits. Twenty-nine patients were treated by orthosis, 13 by Body Cast and six by bed rest. In addition to pain and functional scoring, we measured a number of radiographic parameters at the time of admission and at latest follow-up and compared the values. In patients with compression fractures there were significant changes in scoliosis angle and wedging index (p<0.05). The mean pain score was 1.66 and mean functional score 1.03. In patients with burst fractures, vertebral index, wedging index and height loss increased after treatment (p<0.05). The mean pain score was 1.26 and functional score 0.93. Compression fractures with kyphosis angle <30° are supposed to be stable and can be treated conservatively. If the kyphosis angle is more than 30°, magnetic resonance imaging (MRI) should be performed, and if the posterior ligamentous complex is damaged, surgery should be considered. In burst fractures, MRI should always be performed and conservative treatment should only be considered if there is no neurological deficit and the ligaments are intact.