| 3121. |
- Karlsson, M K, et al.
(författare)
-
Fracture incidence after tibial shaft fractures. A 30-year follow-up study
- 1993
-
Ingår i: Clinical Orthopaedics and Related Research. - 0009-921X. ; :287, s. 9-87
-
Tidskriftsartikel (refereegranskat)abstract
- Based on all patients with tibial shaft fracture (n = 767) treated in the department of orthopedics in Malmö from 1955 to 1963, a retrospective cohort study was performed in 1990. Two hundred sixty-nine of the patients were still living in Malmö or had died in the city. Since all roentgenograms were available, all other fractures that this group of patients had sustained up to 1990 were included. Data were compared with an age- and gender-matched control group with respect to location and types of fractures. The group with previous tibial shaft fractures had an increased incidence of all sorts of fractures. When comparing the risk of sustaining new fractures in the previously fractured limb with the uninjured side, only a statistically insignificant tendency toward more fractures was found. A similar tendency was observed in fractures of the upper limb. Therefore, remaining osteopenia in the injured limb after tibial shaft fracture is not associated with further fractures; rather, this group of patients were more fracture prone in general.
|
|
| 3122. |
|
|
| 3123. |
- Karlsson, Magnus K., et al.
(författare)
-
Geschlechtsspezifische unterschiede von leistenschmerzen im fußball
- 2014
-
Ingår i: Deutsche Zeitschrift fur Sportmedizin. - : Deutsche Zeitschrift Fur Sportmedizin/German Journal of Sports Medicine. - 0344-5925. ; 65:2, s. 38-42
-
Tidskriftsartikel (refereegranskat)abstract
- Problem: Groin pain is common in soccer players but the prevalence has only been examined in uncontrolled studies. Methods: 479 male soccer players aged 25 years (17 - 43) (mean with range), 144 female soccer players aged 23 years (16 - 47), 74 men with no history of soccer training aged 26 years (16 - 42) and 94 women with no history of soccer training aged 23 years (range 15 - 43) answered a mailed questionnaire that included specific questions on groin pain and training history. Data are presented as proportions (%) or as mean with 95 % confidence intervals (95% CI). Results: 55% male soccer players and 26% male controls had experienced groin pain, resulting in an odds ratio (OR) of 3.7 (95% CI 2.1, 6.6). The corresponding proportions were in female soccer players 28 % and in female controls 13 % giving an OR of 2.8 (95% CI 1.4, 5.8). When comparing the genders the higher proportion of males than females that had experienced groin pain resulted in an OR of 2.9 (95% CI 1.9, 4.5) for male versus female soccer players and an OR of 2.6 (95% CI 1.1, 5.3) for male versus female controls. Discussion: Playing soccer and being of the male gender are factors associated with a higher risk of experiencing groin pain.
|
|
| 3124. |
- Karlsson, Magnus K., et al.
(författare)
-
Idrottande barn och ungdomar »vaccineras« mot frakturer i vuxenlivet : Träning är bra för alla – på olika sätt
- 2015
-
Ingår i: Läkartidningen. - 0023-7205. ; 112:16, s. 1-6
-
Tidskriftsartikel (refereegranskat)abstract
- High mechanical load in alternating directions with sufficient rest in between the loading periods is one of the best stimuli to enhance bone mass and skeletal structure, both contributing independently to bone strength. The age-frame where skeletal benefits from exercise are largest is in late pre- and early peri-puberty. Recent publications with low level of evidence infer that such skeletal benefits gained during youth are retained in adulthood and translates to a lower fracture risk. In adulthood much less can be gained in the skeleton by physical activity, while in contrast neuromuscular function and muscle strength can be improved also in old ages, with reduced fall risk as consequence. Adverse effects from exercise are few, usually found in individuals with intense activity and usually reversible with reduced activity. Moderately intense physical activity during growth and adolescence should therefore be supported as one strategy to improve bone strength and possibly also reduce the future incidence of fractures.
|
|
| 3125. |
- Karlsson, M K, et al.
(författare)
-
Indicators of bone formation in weight lifters
- 1995
-
Ingår i: Calcified Tissue International. - 1432-0827. ; 56:3, s. 177-180
-
Tidskriftsartikel (refereegranskat)abstract
- Physical activity has been suggested to be one of the determinants of bone turnover and to prevent age-related bone loss. To examine this we measured the serum levels of osteocalcin (bone Gla-protein, BGP), C-terminal procollagen peptide (PICP), serum alkaline phosphatase, bone-specific alkaline phosphatase, and S-calcium as indices of bone formation in 19 actively performing and 15 ex-lifters. All were nationally or internationally ranked male athletes. Their values were compared with those from 38 age- and gender-matched controls. Actively performing weight lifters had 35% higher (P < 0.05) serum concentration of osteocalcin than the controls. The ex-lifters did not differ from the age-matched controls. Also serum calcium was elevated in active lifters (6%) (P < 0.01) but not in ex-lifters. No difference was found for serum-ALP, B-ALP, or PICP in either of the groups. Our study indicates that in addition to an already documented and well-known higher bone mineral density in heavily exercising athletes, they have an indication of higher bone formation as measured by biochemical markers. In athletes who have retired from competitional training, however, the bone formation does not differ from that of more sedentary controls.
|
|
| 3126. |
- Karlsson, Magnus K., et al.
(författare)
-
Ligament lengthening compared with simple division of the transverse carpal ligament in the open treatment of carpal tunnel syndrome
- 1997
-
Ingår i: Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery. - : Informa UK Limited. - 0284-4311. ; 31:1, s. 65-69
-
Tidskriftsartikel (refereegranskat)abstract
- It has been suggested that the new (and controversial) endoscopic techniques are more successful than standard operation for the preservation of the ligamentous pulley function across the carpal tunnel and for the separation of the gliding structures from the subcutaneous tissues after release of the carpal ligament in carpal tunnel syndrome. We therefore decided to study the possible importance of preserving the continuity of the carpal ligament by doing an open lengthening of the ligament. This retrospective, unrandomised study included 99 patients with carpal tunnel syndrome who underwent open release of the carpal tunnel with or without a simultaneous lengthening of the transverse carpal ligament. The duration of follow up ranged from 4-8 years. The group who had the ligament lengthened had significantly longer sick leave (p < 0.01) than the group who had transverse ligament section alone. There were no advantages to reconstruction of the transverse ligament.
|
|
| 3127. |
- Karlsson, Magnus K
(författare)
-
Physical activity, skeletal health and fractures in a long term perspective.
- 2004
-
Ingår i: Journal of Musculoskeletal and Neuronal Interactions - Jmni. - 1108-7161. ; 4:1, s. 12-21
-
Tidskriftsartikel (refereegranskat)abstract
- Exercise during adolescence, especially during the pre-pubertal years, builds a skeleton with a high bone mineral density (BMD) and possibly a larger skeleton with a different skeletal architecture. This would lead to a stronger skeleton more resistant to trauma. These changes could be of biological significance for fracture reduction, if they were maintained into old age where fragility fractures exponentially rise. The Achilles heel of exercise is its cessation. Most BMD benefits achieved by exercise appear to be eroded with cessation of exercise. Reduced exercise intensity after a period of high activity, may maintain some residual BMD benefits into old age. A decreased fracture rate in the population could perhaps be achieved by promoting a physically active life style with lifelong high activity. But what happens if the activity in former athletes is reduced to the same level as in individuals who never exercised? The null hypothesis that exercise has no effect on fracture rates in old age cannot be rejected on the basis of any published, randomised, prospective data. Instead we have to rely on retrospective observational and case control studies, all hypothesis-generating, not hypothesis-testing. Existing data suggest that there could be a reduced fracture risk in former athletes. This notion may be correct, but consistently replicated sampling bias may produce the same observation and any biological explanation for this fracture reduction is unclear. Residual structural skeletal benefits, improved muscle strength, coordination and balance are all traits possibly maintained in former athletes after their active career. These traits may possibly reduce the number of fractures in later life.
|
|
| 3128. |
- Karlsson, M. K., et al.
(författare)
-
Post-traumatic osteoarthrosis after tibial shaft fractures A 30-year-follow-up
- 1993
-
Ingår i: Orthopedie Traumatologie. - 1633-8065. ; 3:3, s. 255-256
-
Tidskriftsartikel (refereegranskat)abstract
- In 1990, a retrospective case control study was performed based on all patients with tibial shaft fractures (n = 767) treated at the Department of Orthopaedics in Malmö 1949-1963. At the time of the study 231 of the patients were still living in Malmö . All radiographic examinations of this latter group from the time of the fracture to 1990 were studied and the occurrence of osteoarthrosis (OA) of the hip, knee and ankle joints were registered. The fracture patients were compared with an age and sex-matched control group. The group with previous tibial shaft fracture had an increased prevalence of OA in the lower extremities compared with the controls. When comparing the risk of OA in the once fractured limb with the uninjured side we found no difference. We conclude that there is no risk of having posttraumatic OA after extra-articular tibial shaft fractures.
|
|
| 3129. |
- Karlsson, Magnus K., et al.
(författare)
-
The ankle fracture as an index of future fracture risk : A 25-40 year follow-up of 1063 cases
- 1993
-
Ingår i: Acta Orthopaedica. - : Medical Journals Sweden AB. - 1745-3674 .- 0001-6470. ; 64:4, s. 482-484
-
Tidskriftsartikel (refereegranskat)abstract
- In 1992 a retrospective case control study was performed, based on all patients with ankle fractures (n 1063) treated at the Department of Orthopedics in Malmö Sweden, between 1950-1951 and 1961-1965. As all radiographic examinations have been saved in Malmö we were able to study all subsequent fractures that this group had sustained. 260 patients from 1961-1965 who were still living in Malmö today were also compared with an age-and gender-matched control group regarding the location and type of subsequent fractures. the group with former ankle fractures continued to have a two-fold increased incidence of all sorts of fractures. the same result was found when looking at the upper and lower extremities separately. However, the risk of sustaining new fractures in the once-fractured extremity was not increased compared to the uninjured side.
|
|
| 3130. |
- Karlsson, M K, et al.
(författare)
-
The prevention of osteoporotic fractures.
- 2005
-
Ingår i: Journal of Bone and Joint Surgery: British Volume. - 2044-5377. ; 87:10, s. 1320-1327
-
Forskningsöversikt (refereegranskat)
|
|
