Vacuum phenomenon in equine carpal, metacarpophalangeal and metatarsophalangeal joints

Abstract

In order to establish the incidence of vacuum phenomenon in horses' carpal, metacarpophalangeal and metatarsophalangeal joints, stress-flexed radiographs were madeof normal joints, joints withknownpathology and in anaesthetised horses with joints under traction. Focal intra-articular radiolucencies were identified in normal stress-flexed carpal, metacarpophalangeal and metatarsophalangeal joints. These radiolucencies can be confused with those associated with pathological conditions.

Vacuümfenomeen geassocieerd met een drievoudige cervicale wervelboog- en ligamentum flavum-anomalie resulterend in erge stenotische myelopathie bij een hond

“…Intervertebral disc vacuum phenomena and those located within synovial joint spaces are often associated with degenerative joint disease or excessive distractive forces, e.g. in case of stress radiography, joint luxation (Knutsson, 1942;Weber et al, 1995;Gottschalk et al, 1999, Schwarz et al, 2000, whereas intravertebral vacuum phenomena may be associated with both benign, e.g., traumatic fracture, osteomyelitis, and malignant (neoplasia) processes (Knutson, 1942;Resnick et al, 1981;Gohil et al, 2014). These gas lucencies should be differentiated from the venous air embolisms routinely seen on computed tomography studies in both humans and small animals secondary to vessel catheterization and contrast administration (Heng et al, 2014).…”