The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
Sune Larsson - One of the best experts on this subject based on the ideXlab platform.
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the effect of early weight bearing on Migration Pattern of the uncemented cls stem in total hip arthroplasty
Journal of Arthroplasty, 2007Co-Authors: Hakan Strom, Olle Nilsson, Jan Milbrink, Hans Mallmin, Sune LarssonAbstract:Forty-two patients (younger than 65 years) with osteoarthritis were operated on with an uncemented CLS stem and randomized to early unrestricted weight bearing combined with intensive physiotherapy or to partial weight bearing combined with self-training. Radiostereometric analysis showed 1.2 (+0.11 to -6.76) mm subsidence of the stem at 24 months in both groups. There was no significant difference in the Migration Pattern between the unrestricted and partial weight bearing groups. Actual loading on the operated leg, measured with the F-scan system, did not influence the Migration of the stem. There was a strong correlation between the average subsidence at 3 and 24 months (r = 0.96). Early full weight bearing and active rehabilitation can be used for the uncemented CLS stem without increased risk of early loosening.
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early Migration Pattern of the uncemented cls stem in total hip arthroplasties
Clinical Orthopaedics and Related Research, 2007Co-Authors: Hakan Strom, Olle Nilsson, Jan Milbrink, Hans Mallmin, Sune LarssonAbstract:We performed this investigation to determine the possible Migration starting immediately after surgery and the effect of different weightbearing regimens on the Migration Pattern of an uncemented hip stem (CLS). Stem Migration was determined with radiostereometry analysis with baseline when the patients still were anesthetized. Subsequent examinations were done up to 1 year. Twenty-nine patients (mean age, 55 years; range, 26-63 years) were randomized to either unrestricted weightbearing combined with intensive physiotherapy from the first day after surgery or to partial weightbearing and a conservative training regimen for the first 3 months after surgery. At 1 week, subsidence was -0.03 mm in the unrestricted weightbearing group and 0.01 mm in the partial weightbearing group. At 1 year, subsidence was 1.01 mm in the unrestricted weightbearing group and 0.51 mm in the partial weightbearing group. One patient in the unrestricted weightbearing group had revision surgery because of aseptic loosening at 1.5 years after surgery. The CLS stem did not have any Migration from the end the surgery until 1 week, but there was small Migration from 1 week to 3 months after which the stem remained stable. The degree of early weightbearing did not affect the Migration Pattern.
Kaare M Ebert - One of the best experts on this subject based on the ideXlab platform.
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stocking impact and Migration Pattern in an anadromous brown trout salmo trutta complex where have all the stocked spawning sea trout gone
Molecular Ecology, 2004Co-Authors: Daniel E Ruzzante, Michael Moller Hansen, Dorte Meldrup, Kaare M EbertAbstract:We examined polymorphism at seven microsatellite loci among sea trout (Salmo trutta) (n = 846) collected from three areas in the Limfjord (Denmark). We then assessed their potential population source by comparing, using a mixed stock analysis (MSA) Bayesian framework, their genetic composition to that of brown trout collected from 32 tributaries pooled into nine geographical regions (n = 3801) and two hatcheries (n = 222) used for stocking. For each of the three regional sea trout groups (western, central and eastern Limfjord, n = 91, n = 426, n = 329, respectively), MSA was conducted with (i) all individuals in the group, (ii) with the subset of spawning sea trout only and (iii) with the subset of foraging, nonspawning individuals only, a subset that consisted primarily of sea trout caught during their first year at sea. For all three regional sea trout groups, a higher proportion of individuals (regardless of whether they were foraging or spawning) appear to have originated from the rivers that drain locally, than from the rivers that drain in other parts of the Limfjord. This suggests (1) that sea trout, at least during their first year at sea, undertake limited Migrations within the Limfjord system and (2) that sea trout on their spawning run were caught close to their natal rivers. The proportion of sea trout of hatchery origin varied widely among all three Limfjord areas and broadly reflected regional stocking histories, with high proportions of sea trout of domestic origin in the east (39.3%), where stocking with domestic trout was practised intensely at the time of sampling, and in the west (57.2%), where a programme of coastal stocking of post smolts took place over several years in the early 1990s. In contrast, in the central Limfjord, where stocking with domestic trout was largely abandoned in the early 1990s, the proportion of sea trout of domestic origin was only 8.5%. Interestingly, for all three regional sea trout groups, virtually no sea trout of hatchery origin were found among the spawning individuals, which were on average larger than the nonspawning sea trout. These results suggest that stocked domestic brown trout that become anadromous experience high mortality at sea and are therefore largely absent among the larger, spawning individuals. We conclude that sea trout of domestic origin exhibit much reduced ability to reproduce and are unlikely to contribute significantly to the local gene pool largely because of a relatively high mortality at sea before the onset of maturity.
Hakan Strom - One of the best experts on this subject based on the ideXlab platform.
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the effect of early weight bearing on Migration Pattern of the uncemented cls stem in total hip arthroplasty
Journal of Arthroplasty, 2007Co-Authors: Hakan Strom, Olle Nilsson, Jan Milbrink, Hans Mallmin, Sune LarssonAbstract:Forty-two patients (younger than 65 years) with osteoarthritis were operated on with an uncemented CLS stem and randomized to early unrestricted weight bearing combined with intensive physiotherapy or to partial weight bearing combined with self-training. Radiostereometric analysis showed 1.2 (+0.11 to -6.76) mm subsidence of the stem at 24 months in both groups. There was no significant difference in the Migration Pattern between the unrestricted and partial weight bearing groups. Actual loading on the operated leg, measured with the F-scan system, did not influence the Migration of the stem. There was a strong correlation between the average subsidence at 3 and 24 months (r = 0.96). Early full weight bearing and active rehabilitation can be used for the uncemented CLS stem without increased risk of early loosening.
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early Migration Pattern of the uncemented cls stem in total hip arthroplasties
Clinical Orthopaedics and Related Research, 2007Co-Authors: Hakan Strom, Olle Nilsson, Jan Milbrink, Hans Mallmin, Sune LarssonAbstract:We performed this investigation to determine the possible Migration starting immediately after surgery and the effect of different weightbearing regimens on the Migration Pattern of an uncemented hip stem (CLS). Stem Migration was determined with radiostereometry analysis with baseline when the patients still were anesthetized. Subsequent examinations were done up to 1 year. Twenty-nine patients (mean age, 55 years; range, 26-63 years) were randomized to either unrestricted weightbearing combined with intensive physiotherapy from the first day after surgery or to partial weightbearing and a conservative training regimen for the first 3 months after surgery. At 1 week, subsidence was -0.03 mm in the unrestricted weightbearing group and 0.01 mm in the partial weightbearing group. At 1 year, subsidence was 1.01 mm in the unrestricted weightbearing group and 0.51 mm in the partial weightbearing group. One patient in the unrestricted weightbearing group had revision surgery because of aseptic loosening at 1.5 years after surgery. The CLS stem did not have any Migration from the end the surgery until 1 week, but there was small Migration from 1 week to 3 months after which the stem remained stable. The degree of early weightbearing did not affect the Migration Pattern.
Daniel E Ruzzante - One of the best experts on this subject based on the ideXlab platform.
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stocking impact and Migration Pattern in an anadromous brown trout salmo trutta complex where have all the stocked spawning sea trout gone
Molecular Ecology, 2004Co-Authors: Daniel E Ruzzante, Michael Moller Hansen, Dorte Meldrup, Kaare M EbertAbstract:We examined polymorphism at seven microsatellite loci among sea trout (Salmo trutta) (n = 846) collected from three areas in the Limfjord (Denmark). We then assessed their potential population source by comparing, using a mixed stock analysis (MSA) Bayesian framework, their genetic composition to that of brown trout collected from 32 tributaries pooled into nine geographical regions (n = 3801) and two hatcheries (n = 222) used for stocking. For each of the three regional sea trout groups (western, central and eastern Limfjord, n = 91, n = 426, n = 329, respectively), MSA was conducted with (i) all individuals in the group, (ii) with the subset of spawning sea trout only and (iii) with the subset of foraging, nonspawning individuals only, a subset that consisted primarily of sea trout caught during their first year at sea. For all three regional sea trout groups, a higher proportion of individuals (regardless of whether they were foraging or spawning) appear to have originated from the rivers that drain locally, than from the rivers that drain in other parts of the Limfjord. This suggests (1) that sea trout, at least during their first year at sea, undertake limited Migrations within the Limfjord system and (2) that sea trout on their spawning run were caught close to their natal rivers. The proportion of sea trout of hatchery origin varied widely among all three Limfjord areas and broadly reflected regional stocking histories, with high proportions of sea trout of domestic origin in the east (39.3%), where stocking with domestic trout was practised intensely at the time of sampling, and in the west (57.2%), where a programme of coastal stocking of post smolts took place over several years in the early 1990s. In contrast, in the central Limfjord, where stocking with domestic trout was largely abandoned in the early 1990s, the proportion of sea trout of domestic origin was only 8.5%. Interestingly, for all three regional sea trout groups, virtually no sea trout of hatchery origin were found among the spawning individuals, which were on average larger than the nonspawning sea trout. These results suggest that stocked domestic brown trout that become anadromous experience high mortality at sea and are therefore largely absent among the larger, spawning individuals. We conclude that sea trout of domestic origin exhibit much reduced ability to reproduce and are unlikely to contribute significantly to the local gene pool largely because of a relatively high mortality at sea before the onset of maturity.
Bojie Fu - One of the best experts on this subject based on the ideXlab platform.
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rural attraction the spatial Pattern and driving factors of china s rural in Migration
Journal of Rural Studies, 2019Co-Authors: Wei Qi, Yu Deng, Bojie FuAbstract:Abstract Human Migration is a direct indicator of rural attraction. As the world's most populous nation, China is experiencing a rural population decline. The government is actively focusing on a rural revitalization strategy to make rural areas sustainable. Based on data from the sixth census in 2010, this paper applies the Moran's I method and spatial lag regression model to analyze the spatial Pattern and driving factors of China's rural Migration. The main conclusions are listed as follows. (1) The areas, including the Yangtze River Delta, the Pearl River Delta, and the northwestern areas, were the most attractive destinations for rural migrants. (2) The inter-provincial rural Migration Pattern is close to the total rural Migration Pattern, but is different from the intra-provincial Pattern. (3) In general, job opportunities in the secondary industry, rural income, rural investment, and the local economic levels were all main drivers for rural Migration. The driving mechanisms varied in the eastern, central, and western provinces. To support China's efforts in rural revitalization, regionally different policies, urban-rural integration, and new economic factors are suggested and highlighted from the perspective of rural Migration.