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Left Fore Limb lameness in a 7 year-old Thoroughbred. Left Fore Limb lameness in a 7 year-old Thoroughbred. Patient had a mild lameness of the left front limb. Lameness examination included regional analgesia and distal interphalangeal joint injection six weeks prior to referral
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Left Fore Limb lameness in a 7 year-old Thoroughbred • Patient had a mild lameness of the left front limb. • Lameness examination included regional analgesia and distal interphalangeal joint injection six weeks prior to referral • Acute, severe lameness (grade IV/V) in the same left front limb was present shortly after lameness examination and joint injection • With stall rest the lameness improved, but when allowed to exercise the severity of the lameness returned
Primary Veterinarian Workup • A sample of the distal interphalangeal joint fluid was obtained and was unremarkable • Radiography of the distal limb was unremarkable • Ultrasound of the palmar soft tissues revealed a hypoechoic area associated with the superficial digital flexor branch and scutum laterally
Advanced Imaging • The patient was referred for MRI of the pastern region
MRI Left Front Pastern Region • MRI Proton density (PD) transverse images shown • Distal to proximal
MRI – Sagittal Plane • Proton Density Sagittal plane • Lateral to medial