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Clinical Trial
. 1999 Jul-Aug;137(4):310-5.
doi: 10.1055/s-2008-1039717.

[Extracorporeal shockwave therapy in tendionosis calcarea of the rotator cuff: comparison of different treatment protocols]

[Article in German]
R Seil  1 , S Rupp, D S Hammer, S Ensslin, T Gebhardt, D Kohn
Affiliations
Clinical Trial

[Extracorporeal shockwave therapy in tendionosis calcarea of the rotator cuff: comparison of different treatment protocols]

[Article in German]
R Seil et al. Z Orthop Ihre Grenzgeb. 1999 Jul-Aug.

Abstract

Aim of the study: Extracorporeal shock wave therapy (ESWT) is a new therapeutic procedure for chronically painful calcifying tendinitis of the rotator cuff. The therapy may vary with the number of applied impulses or with impulse energy. Shock waves with an energy of 0.04 to 0.12 mJ/mm2 define low-dose ESWT, in contrast to high-dose ESWT (> 0.12 mJ/mm2). The aim of the study was to verify the hypothesis that either high-dose or low-dose ESWT could be effective if the total amount of applied energy was similar.

Method: Fifty patients were assigned at random to 2 groups. The treatment consisted of 3 x 5000 low-dose impulses without anesthesia (group 1) and 1 x 5000 high-dose impulses with intravenous analgesia (group 2). The patients were examined at 6 weeks, 3 and 6 months after treatment. X-rays were performed at each visit.

Results: The Constant Score improved from 64.5 to 77.5 (group 1) and from 67.2 to 79.4 (group 2) before and 6 months after treatment (p < 0.05). The values on the visual analog scale which ranges from 0 (no pain) to 100 (maximal pain) improved from 76.8 to 48.8 (group 1) and from 75.4 to 45.6 (group 2) before and 6 months after treatment respectively. The final results for both Constant Score and visual analog scale were obtained after 3 months. X-rays showed a complete or subtotal calcific resorption in 8 (group 1, 32%) and 12 (group 2, 48%) patients.

Conclusion: Extracorporeal shock wave therapy may be an alternative treatment of calcifying tendinitis of the shoulder. Both treatment protocols gave equivalent results.

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