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MRI Findings

MRI Findings. Focus of severe hyperintensity associated with the lateral branch of the superficial digital flexor tendon with involvement of the middle scutum Marked proximal interphalangeal joint effusion

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MRI Findings

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  1. MRI Findings • Focus of severe hyperintensity associated with the lateral branch of the superficial digital flexor tendon with involvement of the middle scutum • Marked proximal interphalangeal joint effusion • Thickening of the palmar/lateral soft tissues including the distal digital annular ligament • Lateral oblique distal sesamoidean ligament desmopathy

  2. Follow-Up • This imaging was performed in early December 2012. Since that time the horse was rested further, and recently the tendon lesion was treated using shockwave therapy. • Following therapy the swelling decreased and the patient is at the trotting stage of rehabilitation with no signs of lameness

  3. Commentary • This case was chosen because of the severe injury to the distal superficial digital flexor tendon and scutum in combination with pastern joint effusion • It is suspected that the peripheral, dorsal nature of the tendon injury may have resulted in hemorrhage into the pastern joint • Due to the severity of the swelling in the area joint sampling was not performed following imaging in this case

  4. Commentary • It was also interesting to see a case of severe lameness following PDN block and distal interphalangeal joint injection • No unusual events or limb retraction took place during this block • It is believed that a mild injury to the tendon was pre-existing and was exacerbated following turn-out after the exam (while the area was still under the influence of local anesthesia)

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