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  • 1
    ISSN: 1433-044X
    Keywords: Schlüsselwörter Arthroskopische Kapsel-Labrum-Refixation ; Akute und chronische Schulterluxationen ; Isokinetik ; Key words Acute and chronic shoulder instability ; Arthrosopic suture repair ; Isokinetic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: We examined 30 patients with an arthroscopic suture repair for anterior shoulder instability in a retrospective evaluation. The follow-up period ranged from 12 to 58 months with an average of 22 months. Arthroscopic suture repairs were done on 14 patients (acute group, average age 26.1 years) with acute detached glenoid labrum, confirmed on arthro-CT, within 10 days after the injury and on 16 patients (secondary group, average age 25 years) with chronic should dislocation. The evaluation according to the Rowe scale resulted in a mean score of 97.1 for the acute group, compared with 92.7 for the secondary group. In each group we found one recurrent dislocation, which in the acute group was due to an adequate trauma. Two of the 14 acute group patients showed a reduction in external rotation of up to 20°, compared with 6 patients in the secondary group. The external rotation of one patient in the secondary group was reduced to 40°. The isokinetic muscle strength was decreased in both groups, both for 60°/s and for 120°/s, to 85% compared with the healthy side. The primary surgical therapy of young patients (below 25 years) with an acute shoulder dislocation and a detached glenoid labrum is recommended owing to the lower redislocation rate, an overall shortened course of treatment and a trend to better postsurgical range of motion.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 45 (1988), S. 113-120 
    ISSN: 1432-0649
    Keywords: 78.65 ; 72.20 ; 72.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract There are a great variety of optical nonlinearities that can lead to the phenomenon of laser-induced gratings (LIG) in semiconductors. In the present contribution the dynamic behaviour of an induced absorber with intrinsic bistability is investigated under excitation in a LIG self-diffraction arrangement. Using CdS as a model substance, the comparison of our theoretical model with our experimental findings gives an insight into the nonlinear dynamics of the degenerate carrier system and also an estimation of the transport properties of the electron-hole plasma.
    Type of Medium: Electronic Resource
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