Direct Radiofrequency Application Improves Pain and Gait in Collagenase-Induced Acute Achilles Tendon Injury
SP and CGRP stained brown in high cellularity areas. RF-treated tissues stained less SP and CGRP than tendons without RF ((a) and (b)). SP and CGRP expression were significantly reduced in RF-treated tendons ((c) and (d), , and , resp.). Pain markers expression were gradually reduced; on days 9, 11, 13, and 15 for SP, and days 11, 13, and 15 for CGRP ((c) and (d), , , ). Blood vessels stained darker than matrix (arrows). Magnification, 200x; scale bar, 100 μm.
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