These overriding and kissing spines can be Graded from 0-3.Ībnormal findings can also be seen on the ventral aspect of the spinous processes and can involve the interspinal ligaments or be associated with osteoarthritis of the articular processes. We often see the lesions on lateral radiographs of the dorsal spinous processes. Most common location vertebral segments that are being impinged are between T10-18 (area of saddle), however we do see them between L1-L6 (behind saddle). These signs can also be associated with the likes of Lyme disease, tack issues, training, and rider, and stomach ulcers! 2016)Ĭlinical Signs: A wide range of signs from asymptomatic to unrideable (bucking, refusing to be saddled, behavioral issues even on the ground, avoidance behavior, avoiding bit contact, traveling with heads up and backs dropped, unwilling to bend, difficulty picking up the correct lead, disconnected, cross cantering).
We also know that lesion severity increases with horse age and height (Clayton, Stubbs Journal of Equine Veterinary Science, Dec. Why: Lesion severity in the mid-caudal thoracic spine may be exacerbated by spinal lordosis when ridden. In humans, it is named Basstrup syndrome or Kissing Spine Syndrome. Visually, one sees that the adjacent vertebrae come in contact with each other. The scientific name is Impingement of the Dorsal Spinous Processes (DSP) of the thoracolumbar spine.
“Kissing Spines”, which is a significant cause of alterations of gait and performance, is more easily diagnosed now because of the quality of mobile radiology and ultrasound equipment.
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