Difference between revisions of "Equine Orthopaedics and Rheumatology Q&A 10"

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'''A 10-year old Quarterhorse roping gelding presented for sudden onset lameness of the left forelimb. An arthroscopic view of the left midcarpal joint is illustrated.'''
 
  
 
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<FlashCard questions="4">
 
<FlashCard questions="4">
|q1=What lesion is present?
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|q1=What is your diagnosis?
|a1=Cartilage loss/erosion on the medial palmar aspect of the distal articular surface of the radial carpal bone.
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|a1=A fracture of the distal part of one of the splint bones.
|l1=Cartilage - Anatomy & Physiology
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|l1=
|q2=What is the likely diagnosis?
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|q2=Assuming that the injury is not associated with external trauma, how is it likely to have occurred?
 
|a2=
 
|a2=
Osteoarthritis of the left mid-carpal joint.
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These fractures are thought to occur as a result of stresses placed on the splint bone by the adjacent suspensory ligament. <br><br>
|l2=Degenerative Joint Disease
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It has been suggested that, during hard exercise, the suspensory ligament snaps back against the relatively fixed small metacarpal or metatarsal bones, causing the distal part of the bone to fracture.
|q3=What would be the best approach to treating this horse?
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|l2=
|a3=The defect, which was confined to the medial aspect of the radial carpal bone, could be debrided. <br><br>
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|q3=What associated structure may have been injured?
In addition, the joint could be treated intra-articularly with hyaluronan or poly-sulphated glycosaminoglycan, supplemented with systemic therapy with these drugs and possibly non-steroidal anti-inflammatory agents.
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|a3= The adjacent suspensory ligament branch may have been sprained or even ruptured.
|l3=Degenerative Joint Disease#Treatment
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|l3=
|q4= What is your prognosis?
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|q4= If the horse has both problems, which is most likely to cause persistent lameness?
|a4= When osteoarthritis is present and appears to have occurred insidiously, the prognosis is guarded. <br>Even if the problem is resolved in the short term, the owner needs to be warned that the lameness could recur at any time, and on subsequent occasions it may be refractory to further treatment.
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|a4= The splint bone fracture is unlikely to heal by bony union, but the fibrous union formed does not usually cause any problems. <br><br>
|l4=Degenerative Joint Disease#Prognosis
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However an associated sprain of a branch of the suspensory ligament may well continue to cause lameness.
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|l4=
 
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Revision as of 10:55, 27 May 2011


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Question Answer Article
What is your diagnosis? [[|Link to Article]]
Assuming that the injury is not associated with external trauma, how is it likely to have occurred? [[|Link to Article]]
What associated structure may have been injured? [[|Link to Article]]
If the horse has both problems, which is most likely to cause persistent lameness? [[|Link to Article]]



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