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Small Animal Orthopaedics Q&A 06 (view source)
Revision as of 16:27, 24 October 2011
, 16:27, 24 October 2011no edit summary
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{{Manson
|book = Small Animal Orthopaedics Q&A}}
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<FlashCard questions="2">
<FlashCard questions="3">
|q1=Describe the fracture.
|q1=Describe the fracture.
|a1=
|a1=
There is an intra-articular fracture of the lateral portion of the left humeral condyle (capitulum) extending through the lateral epicondylar crest. The capitulum is displaced proximally.
There is an intra-articular fracture of the lateral portion of the left humeral condyle (capitulum) extending through the lateral epicondylar crest. The capitulum is displaced proximally.
|l1=
|l1=Incomplete Ossification of Humeral Condyle
|q2=Why are Spaniels predisposed to this particular injury, often as a result of minor trauma?
|q2=Why are Spaniels predisposed to this particular injury, often as a result of minor trauma?
|a2=
|a2=
In Spaniels the connection between the lateral and medial portions of the humeral condyle may be purely fibrous and contain
In Spaniels the connection between the lateral and medial portions of the humeral condyle may be purely fibrous and contain
little or no bone. This weak connection predisposes the condyle to fracture with minimal trauma.
little or no bone. This weak connection predisposes the condyle to fracture with minimal trauma.
|l2=
|l2=Incomplete Ossification of Humeral Condyle
|q3=What is the prognosis for repair and
possible complications?
|a3=
The fracture should be anatomically reduced and stabilized with a transcondylar screw placed in lag fashion. In this dog, additional screws were placed in the epicondylar region to provide adjunctive stability.
This fracture may not heal because the lateral and medial portions of the condyle were never united. Therefore, the lag screw
must provide rigid stabilization for a prolonged period of time.
In one case series, 23% of dogs had complications following surgical repair of condylar fractures.
The screw may loosen, resulting in pain, or break, resulting in failure of stabilization. When possible, a 4.5 mm cortical bone screw should be selected as this screw has 2.5 times the resistance to bending when compared with a 3.5 mm cortical screw.
The contralateral condyle should also be evaluated. If incomplete ossification is present, the potential for fracture of the contralateral condyle exists.
|l3=Incomplete Ossification of Humeral Condyle
</FlashCard>
</FlashCard>