skeleton
• position of patella shifted upward toward forward surface of femur, incomplete penetrance
• ectopic sesamoid bone embedded in patellar tendon at proximal edge of patella, incomplete penetrance
|
• alterations in the shape of the transverse processes
• first two sacral vertebrae (S1 and S2) articulated with the pelvis
|
• articulation between femur and tibia shifted out of alignment, rotating the tibia outward, incomplete penetrance
|
• increased number of fused sacral vertebrae
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behavior/neurological
• inability to bring hindlegs towards the ventral midline
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abnormal gait
(
J:44765
)
• incomplete penetrance and variable severity
|
reproductive system
• males unable to copulate
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limbs/digits/tail
• position of patella shifted upward toward forward surface of femur, incomplete penetrance
• ectopic sesamoid bone embedded in patellar tendon at proximal edge of patella, incomplete penetrance
|
nervous system
• decreased number of spinal segments projecting nerve fibers through sacral plexus to innervate musculature of hindlimbs
• decreased size and density of terminal arbors of tibial nerve
• peroneal nerve missing entirely, incomplete penetrance (~30%)
|