The Experts below are selected from a list of 39 Experts worldwide ranked by ideXlab platform
A. Caroli - One of the best experts on this subject based on the ideXlab platform.
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reverse neurovascular homodigital island flap
Annals of Plastic Surgery, 1995Co-Authors: Roberto Adani, G. Pancaldi, R Busa, A. CaroliAbstract:We describe a homodigital island flap with a reverse vascular pedicle based on the anastomoses between the radial and ulnar digital arteries. These anastomotic branches lie between the posterior wall of the tendon sheath and the periosteum to form the three digitopalmar arches. The vascularization of the reverse homodigital island flap is obtained using the middle transverse palmar arch. This flap was performed in 11 patients as a neurovascular "sensitive" flap, including the digital nerve in the pedicle, which was then sutured to the contralateral one at the defect. This technique achieves cover of the Tactile Pad in one operative stage and provides well-vascularized skin, allowing early mobilization. The quality of skin cover was confirmed in all the patients at follow-up ranging from 7 to 43 months postoperatively. We believe that the benefits of the procedure outweigh the disadvantages related to the section of the digital nerve and artery.
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A reverse vascular autograft finger island flap. A review of 15 cases and of the literature
Annales de chirurgie de la main et du membre superieur : organe officiel des societes de chirurgie de la main = Annals of hand and upper limb surgery, 1995Co-Authors: Adani R, Marcuzzi A, Busa R, G. Pancaldi, Bathia A, A. CaroliAbstract:The authors discuss the indications for homodigital island flap with a reverse vascular pedicle. This flap is based on the anastomoses between the radial and ulnar digital arteries. These anastomotic branches lie between the posterior wall of the tendon sheath and the periosteum to form an arch and are named the "digitopalmar arches". The vascularization of the reverse homodigital island flap is derived by using the middle transverse palmar arch. This flap was performed successfully in 14 patients involving 15 fingers to resurface amputation of the distal phalanx. In 6 cases the flap was used as an "artery" flap, and in 9 cases as a "sensitive" homodigital island flap. The pedicle in these cases was neurovascular also containing the digital nerve. The sensitivity of the flap was obtained by neurorraphy between the transposed digital nerve of the flap and the receiving digital nerve of the recipient finger. This technique achieves cover of the Tactile Pad in one operative stage and provides well vascularized skin allowing early mobilization. Sensation of the flap can be restored rapidly when neurorraphy of the transposed digital nerve is performed.
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A comparative study of the heterodigital neurovascular island flap in thumb reconstruction, with and without nerve reconnection.
Journal of hand surgery (Edinburgh Scotland), 1994Co-Authors: Roberto Adani, G. Pancaldi, C. Castagnetti, P. B. Squarzina, A. Lagana, A. CaroliAbstract:Abstract 41 heterodigital neurovascular island flaps were used to cover defects of the Tactile Pad of the thumb in 17 years. With an average follow-up of 75.5 months, 30 patients were reviewed. 17 were treated by the original Littler technique and 13 were treated with the same flap reconstruction but with division of the digital nerve innervating the flap and re-anastomosis of this nerve to the proximal nerve end of the ulnar digital nerve of the thumb. Good aesthetic and functional results were achieved in both groups. Sensory acuity did not appear to decrease with time. The nerve reconnection technique solves the “double sensibility” phenomenon (present in 41.1% of our cases treated by the original technique), but two-point discrimination is less than that achieved by the Littler technique. Most complaints were related to the donor site such as hypertrophic scarring or scar contracture and cold intolerance, but these did not cause any real functional impairment.
Roberto Adani - One of the best experts on this subject based on the ideXlab platform.
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A COMPARATIVE STUDY OF THE HETERODIGITAL NEUROVASCULAR ISLAND FLAP IN THUMB RECONSTRUCTION, WITH AND WITHOUT NERVE RECONNECTION
2016Co-Authors: Roberto Adani, G. Pancaldi, C. Castagnetti, P. B. Squarzina, A. Lagan, A. CarolAbstract:41 heterodigital neurovascular island flaps were used to cover defects of the Tactile Pad of the thumb in 17 years. With an average follow-up of 75.5 months, 30 patients were reviewed. 17 were treated by the original Littler technique and 13 were treated with the same flap reconstruction but with division of the digital nerve innervating the flap and re-anastomosis of this nerve to the proximal nerve end of the ulnar digital nerve of the thumb. Good aesthetic and functional results were achieved in both groups. Sensory acuity did not appear to decrease with time. The nerve reconnection technique solves the “double sensibility” phenomenon (present in 41.1 % of our cases treated by the original technique), but two-point discrimination is less than that achieved by the Littler technique. Most complaints were related to the donor site such as hypertrophic scarring or scar contracture and cold intolerance, but these did not cause any real functional impairment. Journal of Hand Surgery (British and European Volume, 1994) 19B: 5: 552-5.59 In 1955, Moberg suggested the use of a cutaneous island moved on its neurovascular pedicle in order to transfer sensibility. The following year, Littler (1956) describe
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reverse neurovascular homodigital island flap
Annals of Plastic Surgery, 1995Co-Authors: Roberto Adani, G. Pancaldi, R Busa, A. CaroliAbstract:We describe a homodigital island flap with a reverse vascular pedicle based on the anastomoses between the radial and ulnar digital arteries. These anastomotic branches lie between the posterior wall of the tendon sheath and the periosteum to form the three digitopalmar arches. The vascularization of the reverse homodigital island flap is obtained using the middle transverse palmar arch. This flap was performed in 11 patients as a neurovascular "sensitive" flap, including the digital nerve in the pedicle, which was then sutured to the contralateral one at the defect. This technique achieves cover of the Tactile Pad in one operative stage and provides well-vascularized skin, allowing early mobilization. The quality of skin cover was confirmed in all the patients at follow-up ranging from 7 to 43 months postoperatively. We believe that the benefits of the procedure outweigh the disadvantages related to the section of the digital nerve and artery.
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A comparative study of the heterodigital neurovascular island flap in thumb reconstruction, with and without nerve reconnection.
Journal of hand surgery (Edinburgh Scotland), 1994Co-Authors: Roberto Adani, G. Pancaldi, C. Castagnetti, P. B. Squarzina, A. Lagana, A. CaroliAbstract:Abstract 41 heterodigital neurovascular island flaps were used to cover defects of the Tactile Pad of the thumb in 17 years. With an average follow-up of 75.5 months, 30 patients were reviewed. 17 were treated by the original Littler technique and 13 were treated with the same flap reconstruction but with division of the digital nerve innervating the flap and re-anastomosis of this nerve to the proximal nerve end of the ulnar digital nerve of the thumb. Good aesthetic and functional results were achieved in both groups. Sensory acuity did not appear to decrease with time. The nerve reconnection technique solves the “double sensibility” phenomenon (present in 41.1% of our cases treated by the original technique), but two-point discrimination is less than that achieved by the Littler technique. Most complaints were related to the donor site such as hypertrophic scarring or scar contracture and cold intolerance, but these did not cause any real functional impairment.
Hideyuki Sawada - One of the best experts on this subject based on the ideXlab platform.
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HSI - A hapto-Tactile display for presenting virtual objects in human-scale tactual search
2016 9th International Conference on Human System Interactions (HSI), 2016Co-Authors: Hideyuki Sawada, Shohei Kitano, Sho YokotaAbstract:In the recognition of an object situated in front of us, we firstly watch it and then try to touch it to feel the Tactile and haptic sensation to be perceived by our hands. Various virtual reality and augmented reality systems have been introduced with the growing computational powers, however visual and auditory information related with a virtual object is mainly presented simultaneously to a user for enhancing the reality. If we consider the real situation of a user to try to recognize an object in the living environment, Tactile and haptic information is assumed to be rather important for the better interaction with the object. In this study, we develop a hapto-Tactile display that covers the movable range of a human arm in the tactual search for presenting Tactile sensation of a virtual object. We design and construct a Tactile Pad to be fixed at the tip of a passively-driven haptic arm, and the Tactile sensation and haptic force are simultaneously displayed to a user wearing the Pad in the hand. The development of the hapto-Tactile display for human Tactile search will be described in this paper, together with an experiment to verify the validity of the system.
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Tactile Pad for the presentation of Tactile sensation from moving pictures
Human System Interactions (HSI), 2014 7th International Conference on, 2014Co-Authors: Hideyuki Sawada, P. BoonjaipetchAbstract:An innovative Tactile Pad that presents various Tactile sensations synchronizing with moving pictures is presented in this paper. To display Tactile/touch sensations from a Pad, a Tactile display panel is designed by employing 10 micro-vibration actuators that provide Tactile-stimulation sources using shape memory alloy wires. With the employment of the human higher-level perception caused by appropriate micro-vibratory stimuli, the resolution of the designed Tactile display panel increases more than three times, so that people perceive various Tactile sensations with high resolution enough for the better reality. By employing a webcam to capture moving pictures, the Tactile Pad system automatically recognizes the texture information contained in the scene, which are associated with Tactile information to be output from the Tactile Pad. In order to let people reasonably perceive the presented Tactile sensations, the developed system automatically translates visual information to Tactile sensation. For verifying the effectiveness of the developed vision-based Tactile Pad system, experiments are conducted and the results are presented.
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HSI - Tactile Pad for the presentation of Tactile sensation from moving pictures
2014 7th International Conference on Human System Interactions (HSI), 2014Co-Authors: Hideyuki Sawada, P. BoonjaipetchAbstract:An innovative Tactile Pad that presents various Tactile sensations synchronizing with moving pictures is presented in this paper. To display Tactile/touch sensations from a Pad, a Tactile display panel is designed by employing 10 micro-vibration actuators that provide Tactile-stimulation sources using shape memory alloy wires. With the employment of the human higher-level perception caused by appropriate micro-vibratory stimuli, the resolution of the designed Tactile display panel increases more than three times, so that people perceive various Tactile sensations with high resolution enough for the better reality. By employing a webcam to capture moving pictures, the Tactile Pad system automatically recognizes the texture information contained in the scene, which are associated with Tactile information to be output from the Tactile Pad. In order to let people reasonably perceive the presented Tactile sensations, the developed system automatically translates visual information to Tactile sensation. For verifying the effectiveness of the developed vision-based Tactile Pad system, experiments are conducted and the results are presented.
P. Boonjaipetch - One of the best experts on this subject based on the ideXlab platform.
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Tactile Pad for the presentation of Tactile sensation from moving pictures
Human System Interactions (HSI), 2014 7th International Conference on, 2014Co-Authors: Hideyuki Sawada, P. BoonjaipetchAbstract:An innovative Tactile Pad that presents various Tactile sensations synchronizing with moving pictures is presented in this paper. To display Tactile/touch sensations from a Pad, a Tactile display panel is designed by employing 10 micro-vibration actuators that provide Tactile-stimulation sources using shape memory alloy wires. With the employment of the human higher-level perception caused by appropriate micro-vibratory stimuli, the resolution of the designed Tactile display panel increases more than three times, so that people perceive various Tactile sensations with high resolution enough for the better reality. By employing a webcam to capture moving pictures, the Tactile Pad system automatically recognizes the texture information contained in the scene, which are associated with Tactile information to be output from the Tactile Pad. In order to let people reasonably perceive the presented Tactile sensations, the developed system automatically translates visual information to Tactile sensation. For verifying the effectiveness of the developed vision-based Tactile Pad system, experiments are conducted and the results are presented.
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HSI - Tactile Pad for the presentation of Tactile sensation from moving pictures
2014 7th International Conference on Human System Interactions (HSI), 2014Co-Authors: Hideyuki Sawada, P. BoonjaipetchAbstract:An innovative Tactile Pad that presents various Tactile sensations synchronizing with moving pictures is presented in this paper. To display Tactile/touch sensations from a Pad, a Tactile display panel is designed by employing 10 micro-vibration actuators that provide Tactile-stimulation sources using shape memory alloy wires. With the employment of the human higher-level perception caused by appropriate micro-vibratory stimuli, the resolution of the designed Tactile display panel increases more than three times, so that people perceive various Tactile sensations with high resolution enough for the better reality. By employing a webcam to capture moving pictures, the Tactile Pad system automatically recognizes the texture information contained in the scene, which are associated with Tactile information to be output from the Tactile Pad. In order to let people reasonably perceive the presented Tactile sensations, the developed system automatically translates visual information to Tactile sensation. For verifying the effectiveness of the developed vision-based Tactile Pad system, experiments are conducted and the results are presented.
G. Pancaldi - One of the best experts on this subject based on the ideXlab platform.
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A COMPARATIVE STUDY OF THE HETERODIGITAL NEUROVASCULAR ISLAND FLAP IN THUMB RECONSTRUCTION, WITH AND WITHOUT NERVE RECONNECTION
2016Co-Authors: Roberto Adani, G. Pancaldi, C. Castagnetti, P. B. Squarzina, A. Lagan, A. CarolAbstract:41 heterodigital neurovascular island flaps were used to cover defects of the Tactile Pad of the thumb in 17 years. With an average follow-up of 75.5 months, 30 patients were reviewed. 17 were treated by the original Littler technique and 13 were treated with the same flap reconstruction but with division of the digital nerve innervating the flap and re-anastomosis of this nerve to the proximal nerve end of the ulnar digital nerve of the thumb. Good aesthetic and functional results were achieved in both groups. Sensory acuity did not appear to decrease with time. The nerve reconnection technique solves the “double sensibility” phenomenon (present in 41.1 % of our cases treated by the original technique), but two-point discrimination is less than that achieved by the Littler technique. Most complaints were related to the donor site such as hypertrophic scarring or scar contracture and cold intolerance, but these did not cause any real functional impairment. Journal of Hand Surgery (British and European Volume, 1994) 19B: 5: 552-5.59 In 1955, Moberg suggested the use of a cutaneous island moved on its neurovascular pedicle in order to transfer sensibility. The following year, Littler (1956) describe
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reverse neurovascular homodigital island flap
Annals of Plastic Surgery, 1995Co-Authors: Roberto Adani, G. Pancaldi, R Busa, A. CaroliAbstract:We describe a homodigital island flap with a reverse vascular pedicle based on the anastomoses between the radial and ulnar digital arteries. These anastomotic branches lie between the posterior wall of the tendon sheath and the periosteum to form the three digitopalmar arches. The vascularization of the reverse homodigital island flap is obtained using the middle transverse palmar arch. This flap was performed in 11 patients as a neurovascular "sensitive" flap, including the digital nerve in the pedicle, which was then sutured to the contralateral one at the defect. This technique achieves cover of the Tactile Pad in one operative stage and provides well-vascularized skin, allowing early mobilization. The quality of skin cover was confirmed in all the patients at follow-up ranging from 7 to 43 months postoperatively. We believe that the benefits of the procedure outweigh the disadvantages related to the section of the digital nerve and artery.
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A comparative study of the heterodigital neurovascular island flap in thumb reconstruction, with and without nerve reconnection.
Journal of hand surgery (Edinburgh Scotland), 1994Co-Authors: Roberto Adani, G. Pancaldi, C. Castagnetti, P. B. Squarzina, A. Lagana, A. CaroliAbstract:Abstract 41 heterodigital neurovascular island flaps were used to cover defects of the Tactile Pad of the thumb in 17 years. With an average follow-up of 75.5 months, 30 patients were reviewed. 17 were treated by the original Littler technique and 13 were treated with the same flap reconstruction but with division of the digital nerve innervating the flap and re-anastomosis of this nerve to the proximal nerve end of the ulnar digital nerve of the thumb. Good aesthetic and functional results were achieved in both groups. Sensory acuity did not appear to decrease with time. The nerve reconnection technique solves the “double sensibility” phenomenon (present in 41.1% of our cases treated by the original technique), but two-point discrimination is less than that achieved by the Littler technique. Most complaints were related to the donor site such as hypertrophic scarring or scar contracture and cold intolerance, but these did not cause any real functional impairment.
