10/10/2026
๐ด Understanding Equine Back Pain
Another super presentation from the recent ACPAT seminar was Dr Anna Ehrleโs talk on the diagnostic approach to the equine thoracolumbar spine.
One of the key messages was something I think is so important when assessing horses with suspected back pain:
An abnormality on an X-ray doesnโt automatically mean that it is the source of pain.
Thoracolumbar abnormalities are surprisingly common in horses, including overriding dorsal spinous processes (โkissing spinesโ), articular process osteoarthritis, spondylosis and transitional vertebrae. The challenge is determining whether an imaging finding is actually clinically relevant to that individual horse.
Dr Ehrle highlighted the importance of looking at the whole picture, including:
โญ๏ธClinical examination
โญ๏ธLameness assessment
โญ๏ธFunctional movement
โญ๏ธRadiography
โญ๏ธUltrasound
โญ๏ธScintigraphy where appropriate
โญ๏ธCT in selected cases
Horses with apparently similar radiographic changes can have very different clinical presentations. Pain isnโt necessarily determined simply by how much the dorsal spinous processes overlap. Anatomy, soft-tissue involvement and differences in innervation may all influence the clinical picture.
The interconnected nature of the structures around the thoracolumbar spine. The multifidus, interspinous ligament, supraspinous ligament and thoracolumbar fascia form an interconnected system, which helps us appreciate why a problem in one structure may have wider biomechanical and myofascial implications.
Dr Ehrle discussed a range of approaches to managing horses with overriding dorsal spinous processes, including local injections, controlled exercise, surgery, manual therapy, systemic medication and mesotherapy.
There was also discussion of research investigating multifidus muscle changes during rehabilitation following treatment for overriding dorsal spinous processes.
The over-riding message throughout however:
Donโt diagnose the radiograph - diagnose the horse.
Imaging is an incredibly valuable part of the diagnostic process, but it needs to be interpreted alongside the clinical findings, lameness assessment and functional presentation.
Itโs this combination of diagnostic imaging, clinical reasoning, functional assessment and appropriate rehabilitation that allows us to build a much more complete picture of the horse. ๐