LADIS Case of the Month - September 2019

Submitted by: Becky Urion, DVM (2nd year Diagnostic Imaging Resident) and Eric T. Hostnik, DVM, MS, DACVR, The Ohio State University.

Signalment & History: 

  • An 11 year old Quarter Horse gelding presented for a chronic right hindlimb lameness that had been previously localized to the proximal metatarsus by the referring veterinarian. 
  • Radiographs, ultrasound, and MRI of the right proximal metatarsal region were unremarkable.  The distal tarsal joints had been injected but improvement in the lameness was temporary.  
  • Two and half months after the MRI exam, the right hindlimb lameness returned in addition to a significant right forelimb lameness.  Attempts at diagnostic analgesia by the referring veterinarian were unrewarding.
  • The horse was referred for a whole-body nuclear scintigraphy study at that time.

Physical Exam & Lameness Findings: 

  • On physical and lameness exams prior to nuclear scintigraphy, the horse had a Grade 3/5 lameness on the right forelimb and a Grade 2/5 lameness on the right hindlimb. 
  • There was mild right gluteal atrophy.

Imaging Findings & Follow-up: Download the attachment below.