The Experts below are selected from a list of 303 Experts worldwide ranked by ideXlab platform
Chen Hong - One of the best experts on this subject based on the ideXlab platform.
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Treatment of Metacarpus and phalange nonunion with AO Titanium mini-plate and bone graft
Chinese Journal of Hand Surgery, 2005Co-Authors: Wang Xin, Chen HongAbstract:Objective To evaluate the effectiveness of the treatment of Metacarpus and phalange nonunion by AO Titanium mini-plate and bone graft. Methods forty-eight cases with nonunion of Metacarpus and phlange were treated with AO Titanium mini-plate and bone graft.When there was obvious shortening or bone less(≥0.5 cm),iliac crest hone graft was carried out. Results All the cases were healed completely after 2 to 14 months followed up (the average were 7.3 months). The shortest duration of healing was 5 weeks, while the longest 12 weeks, with the average 6.1 weeks. Conclusion It is an inherently stable and effective technique to treat nonunion of the Metacarpus and phalange by internal fixation with AO Titanium mini-plate and bone graft, which allow early exercise and give good results.
Yang Yan-feng - One of the best experts on this subject based on the ideXlab platform.
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Treatment of the fifth Metacarpus base fractures with min-plate
Hainan Medical Journal, 2008Co-Authors: Yang Yan-fengAbstract:Objective To evaluate the treatment outcome of internal fixation with mini-plate in the treatment of the fifth Metacarpus base fractures. Methods From Jan 2003 to Jun 2007,open reduction and internal fixation with mini-plate were underwent in 21 cases of the fifth Metacarpus base fractures. Results 18 cases were fol- lowed-up, and the average follow-up period was 25.3 months (12 -47months). The bone union was at 8-16 weeks (mean7.4 weeks). According to TAM scales,excellent were achieved in 13 cases , good in 2 cases. The excellent and good rate was 83.3%. Conclusion Internal fixation with mini-plate in treatment of the fifth Metacarpus base fractures is an optimal choice,which ensures stable fixation and early rehabilitation.
Peter H.l. Ramzan - One of the best experts on this subject based on the ideXlab platform.
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transverse stress fracture of the distal diaphysis of the third Metacarpus in six thoroughbred racehorses
Equine Veterinary Journal, 2009Co-Authors: Peter H.l. RamzanAbstract:Summary Fractures involving the fetlock region are encountered commonly in Thoroughbred racehorses. Condylar fractures of the distal Metacarpus/metatarsus and mid-sagittal fractures of the proximal phalanx account for the majority of fetlock injuries during both racing and training and clinical features, management and outcome of these injuries have been well described. Transverse fractures of the distal diaphysis of the third Metacarpus, however, are seldom observed and have received little attention in the literature. This paper describes clinical and radiological findings associated with 6 cases encountered in first opinion racehorse practice over a 3 year period. Transverse third metacarpal fractures vary in presentation but typically have clinical signs referable to the fetlock region and may, on occasion, be life-threatening. They are therefore an important differential diagnosis when a fracture involving the fetlock is suspected.
Wang Xin - One of the best experts on this subject based on the ideXlab platform.
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Treatment of Metacarpus and phalange nonunion with AO Titanium mini-plate and bone graft
Chinese Journal of Hand Surgery, 2005Co-Authors: Wang Xin, Chen HongAbstract:Objective To evaluate the effectiveness of the treatment of Metacarpus and phalange nonunion by AO Titanium mini-plate and bone graft. Methods forty-eight cases with nonunion of Metacarpus and phlange were treated with AO Titanium mini-plate and bone graft.When there was obvious shortening or bone less(≥0.5 cm),iliac crest hone graft was carried out. Results All the cases were healed completely after 2 to 14 months followed up (the average were 7.3 months). The shortest duration of healing was 5 weeks, while the longest 12 weeks, with the average 6.1 weeks. Conclusion It is an inherently stable and effective technique to treat nonunion of the Metacarpus and phalange by internal fixation with AO Titanium mini-plate and bone graft, which allow early exercise and give good results.
Lance E. Lanyon - One of the best experts on this subject based on the ideXlab platform.
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Mechanics of locomotion and jumping in the forelimb of the horse (Equus): in vivo stress developed in the radius and Metacarpus
Journal of Zoology, 2009Co-Authors: Andrew A. Biewener, J. Thomason, Lance E. LanyonAbstract:Principal stresses acting in the midshafts of the radius and Metacarpus of the horse were determined from in vivo strain recordings during locomotion and jumping. Ground forces and limb position were also recorded. Over a range of speed and gait the radius was subjected to considerable bending, whereas the Metacarpus was loaded primarily in axial compression. As a result, peak stresses acting in the radius (maximum: –45 MN/m2) were consistently 50% greater than those acting in the Metacarpus (maximum: –31 MN/m2). The increase in peak bone stress (radius: 119% and Metacarpus; 114%) with increasing speed was matched by a 103% increase in the mass-specific vertical force (Av) exerted on the limb and a 55% decline in duty factor of the limb. The forelimb was closely aligned with the direction of ground force during the support phase (
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mechanics of locomotion and jumping in the forelimb of the horse equus in vivo stress developed in the radius and Metacarpus
Journal of Zoology, 2009Co-Authors: Andrew A. Biewener, J. Thomason, Lance E. LanyonAbstract:Principal stresses acting in the midshafts of the radius and Metacarpus of the horse were determined from in vivo strain recordings during locomotion and jumping. Ground forces and limb position were also recorded. Over a range of speed and gait the radius was subjected to considerable bending, whereas the Metacarpus was loaded primarily in axial compression. As a result, peak stresses acting in the radius (maximum: –45 MN/m2) were consistently 50% greater than those acting in the Metacarpus (maximum: –31 MN/m2). The increase in peak bone stress (radius: 119% and Metacarpus; 114%) with increasing speed was matched by a 103% increase in the mass-specific vertical force (Av) exerted on the limb and a 55% decline in duty factor of the limb. The forelimb was closely aligned with the direction of ground force during the support phase (<9° when peak force acted) to minimize bending forces exerted on the distal limb bones. Hence, bending of the radius resulted mainly from axial forces acting about its longitudinal curvature. This was in contrast to the Metacarpus, which is a much straighter bone. Significantly greater stresses were recorded in each bone during jumping: –81 MN/m2 in the radius and –53 MN/m2 in the Metacarpus. While the distribution of loading in the radius was similar to that during steady state locomotion, greater variability in the magnitude and/or distribution of metacarpal loading was observed between animals, largely due to differences in the orientation of the limb during takeoff and landing. These data demonstrate that the horse, despite its large size, maintains a safety factor of nearly 3–4 during peak performance.