Determination of functional and morphologic changes in palmar digital nerves after nonfocused extracorporeal shock wave treatment in horses

Abstract

Nonfocused ESW treatment of the metacarpophalangeal area resulted in lower SNCV in palmar digital nerves. This effect likely contributes to the post-treatment analgesia observed in horses and may result in altered peripheral pain perception. Horses with preexisting lesions may be at greater risk of sustaining catastrophic injuries when exercised after treatment.

The effects of radial shock waves on the metabolism of equine cartilage explantsin vitro

“…Furthermore, radial shock waves have been shown to lower the velocity of sensory nerve conduction and disrupt the myelin sheath of palmar digital nerves in horses (Bolt et al 2004). This evidence suggests that while ESWT may have benefi cial clinical effects, its use must be tempered with knowledge of potential side-effects.…”

“…RESWT therefore does not generate a true shock waveform. This form of energy has also been referred to as non-focussed ESWT (Bolt et al 2004) and radial pressure-wave therapy (Crowe et al 2004;Pauwels et al 2004). Focussed and radial shock-wave modalities have been shown to have some similar clinical effects (Bonder and Boening 2003).…”

The effects of extracorporeal shock wave therapy on the pain and function of patients with degenerative knee arthritis

“…Extracorporeal shock waves can spread into tissues around painful regions, thereby increasing mitochondrial oxidation and the photochemistry effect that facilitates adenosine triphosphate (ATP) production, resulting in expansion of blood vessels and lymphatic vessels. This will reduce pain due to the rapid removal of exudate and re-absorption of the unnecessary liquids that are accumulated in the human body by facilitating blood circulation and increases in metabolism6 ) .…”

Recent developments in Equine palmar foot syndrome: What has changed for the clinician?

“…The application of shockwaves through the bulbs of the heel proved to be more effective than applying shokkwaves through the frog region of the sole (Blum 2004). Treatment with ESW also results in a transient analgesic effect, caused by damage to peripheral nerves that results in slower nerve conduction and, presumably, impaired perception of peripheral pain (Bolt et al 2004). It is, however, still not clear what is responsible for the beneficial effects of ESW.…”