[libribook.com] Traumatic Scar Tissue Management 1st Edition

16.06.2020 Views

Pathophysiological ConsiderationTo clarify, fibrosis associated with pathophysiological scars is essentiallyaberrant collagen architecture in denser presentations of CT and fascia,whereas Stecco’s defined densification occurs in the loose CT layers thatare found inside and around denser CT and fascia. The loose/sliding layersare rich in water and other substances, such as adipose cells,glycosaminoglycans (GAGs) and hyaluronic acid (HA), which can affectCT and fascia’s biomechanical properties. In healthy tissue, HA, which ishighly hydrophilic, supports frictionless sliding, whereas over-use injurycauses HA chains to fragment, aggregate and entangle, impacting CT andfascia’s hydrodynamic and normal viscoelastic properties. Densification(increased viscosity) can impact normal sliding between adjacent tissuesand/or structures, such as between the DF and underlying muscle, andbetween the muscle bundles and fibers. Stecco and colleagues suggest thatthe entangled chains of HA may be a cause of soft tissue restriction andmyofascial pain (Stecco et al. 2013, Hammer 2013). The authors proposethat over-use type impairments, and subsequent HA changes, are a commonconsequent of chronic scars.

Pathophysiological ConsiderationMechanoreceptors housed in densified spaces tend to be hyper-responsiveto stretch, and upon stretch can elicit the transmission of pain messages.Muscle spindles embedded in densified epi- and perimysium may sendaberrant feedback to the central nervous system (CNS), resulting inincoordination (Stecco et al. 2013, Hammer 2013).

Pathophysiological Consideration

Mechanoreceptors housed in densified spaces tend to be hyper-responsive

to stretch, and upon stretch can elicit the transmission of pain messages.

Muscle spindles embedded in densified epi- and perimysium may send

aberrant feedback to the central nervous system (CNS), resulting in

incoordination (Stecco et al. 2013, Hammer 2013).

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