Diagnostic performance of ultrasonography, bursography and standing magnetic resonance to detect navicular intrabursal pathology in horses with foot pain

Navicular intrabursal pathology is one of the most common causes of forelimb lameness in horses. An accurate diagnosis of which structure is involved is essential for therapy and prognosis. The study aimed to compare the diagnostic performance of ultrasonography, bursography, and standing magnetic resonance (MRI) imaging as diagnostic tools of the proximal navicular intrabursal pathology using bursoscopy as the gold standard. A total of 21 feet of 17 horses met the inclusion criteria. The feet underwent ultrasonography, followed by MRI, and thereafter bursography and bursoscopy. The images were interpreted blindly to document the presence or absence of the podotrochlear lesions. The lesions of interest were dorsal fibrillation and splits of the deep digital flexor tendon (DDFT), adhesions, and fibrocartilage defect of the navicular bone. The accuracy, specificity, sensitivity, positive predictive values, and negative predictive values were calculated. Furthermore, the kappa test wa..., 2.1. Data collection
This prospective blinded study was carried out between 2016 and 2020 on client-owned adult sport non-racing horses referred with unilateral or bilateral forefoot lameness after obtaining the owners’ approval. The horses were included in the study if the lameness was located in the hoof region via diagnostic analgesia, and 2) radiography, ultrasonography, and standing MRI of the foot were carried out, 3) bursography combined with bursa analgesia was performed within two weeks after the previous imaging modalities, and 4) bursoscopy was carried out within three weeks after the bursography. The exclusion criteria were negative podotrochlear bursa analgesia performed prior to the MRI or ultrasound of the foot. The inclusion was decided upon by an associated Diplomate of the European College of Veterinary Diagnostic Imaging (KG) and a German board-certified veterinary radiologist (MM). The sample size was based on convenience sampling, i.e., the number of animals meeting..., , # Diagnostic performance of ultrasonography, bursography and standing magnetic resonance to detect navicular intrabursal pathology in horses with foot pain

[https://doi.org/10.5061/dryad.mpg4f4rb5](https://doi.org/10.5061/dryad.mpg4f4rb5)

## Description of the data and file structure

### Files and variables

#### File: Outcome\_and\_shoes\_of\_the\_patients.xlsx 10.32 KB

**Description:** Signalment of the population of this study:

1. horse (registration number of patient )
2. gender (stallion, mare, gelding)
3. birth year (when the horse was born)
4. breed (warmblood, paint horse)
5. limb (Right, Left)
6. discipline (dressage, Jumping, eventing)
7. outcome (sound, lame)
8. laser intra-OP (Y/N)
9. Shoes (egg-bar, wedge 5°)
10. age (age in years of the patient on OP-day)  

#### File: Bursography\_ZJ.xlsx 10.01 KB

**Description:** blind assessment of the bursography from Zoe Joostens.

**In the first sheet**

ID = registration number of the patient

1. Fibrocartilage: Defect in the ...,