Chronic trapezius myalgia. Morphology and blood flow studied in 17 patients.

@article{Larsson1990ChronicTM,
  title={Chronic trapezius myalgia. Morphology and blood flow studied in 17 patients.},
  author={Susanne Larsson and L Bodeg{\aa}rd and K. G. Henriksson and Pontus Oberg},
  journal={Acta orthopaedica Scandinavica},
  year={1990},
  volume={61 5},
  pages={394-8}
}
Bilateral open biopsies from the painful upper part of the trapezius muscle were studied in 17 patients with localized chronic myalgia related to static load during repetitive assembly work. Isolated pathologic ragged red fibers were related to the presence of myalgia. The phenomenon indicating disturbed mitochondrial function was confined to the Type 1 fibers. Using a laser-Doppler flowmeter, the muscle blood flow was recorded in the exposed muscle before a biopsy was taken. Pain was assessed… CONTINUE READING