Dorsal Spinous Process Impingement (DSPI), commonly referred to as kissing spine

Thanks for all of your questions following Tuesdays post….. happy reading

 

DSPI is a condition in which the dorsal spinous processes of the thoracic or lumbar vertebrae are positioned abnormally close together. This proximity can lead to inflammation of surrounding soft tissues or osseous (bony) contact,  resulting in chronic axial skeletal pain.

Clinical Presentation:

Affected horses may exhibit:

  • Reduced range of motion through the thoracolumbar region

  • Resistance to collection, bending, or engagement of the hindquarters

  • Altered gait mechanics and shortened stride length

  • Behavioural changes under saddle, anxiety, or hollowing of the back

 

Diagnosis:

A thorough diagnostic work-up typically includes:

  • Palpation and dynamic assessment of the back

  • Radiographic imaging

 

Treatment Modalities:

  • Pharmacologic: corticosteroid injections into the interspinous spaces to reduce inflammation and pain (PHOTO ATTACHED)

  • Physiotherapeutic: Structured rehabilitation programs focusing on core strengthening, topline development, and postural correction.

  • Biomechanical management: Optimizing saddle fit, rider balance, and training techniques to reduce axial loading.

In some cases….

  • Surgical: Interspinous ligament desmotomy or partial ostectomy in refractory cases, often followed by intensive post-operative rehabilitation.

 

Prognosis:

With early detection and a multimodal treatment approach, many horses can return to full athletic function. Chronic or advanced cases may require ongoing management to maintain comfort and performance.

Get in touch if you would like Becci to help you with any issues you have.