Discussion of pertinent facts:

Pomeranian:  We think this may be important because of possible breed 
dispositions to 
certain diseases.  We are considering that this is a toy breed.

11.6 lbs: This may be a factor once we have looked up an appropriate weight 
range for a 
Pomeranian.  If she is too heavy, this may contribute to her problem. 

Initial problem (right rear leg lameness) occurred after fell off bed a year 
ago:  The initial 
problem may have occurred following trauma.

Became clinically normal within a month:  problem created by trauma may be 
completely 
unrelated to the current problem.

Mild right limb lameness 6 months following trauma:  important for time 
frameÉkeep in 
mind for pathophysiological processes

Has not progressed significantly:  may rule out any process that would rapidly 
progress

Indoor dog, lives with one other dog, owners watch play in yard:  may or may not 
be 
relevant but could exacerbate existing traumatic lesion.  

On physical exam:
3/4 intermittent non-weight bearing lameness:  this indicates that the limb may 
only be 
temporarily painful at times since the non weight bearing status is 
intermittent.  The 
grade indicates the severity of the lameness.

Medial buttressing of right hind stifle: indicates thickening of tissues, a 
chronic response 
by the body to counteract instability.

Cranial drawer sign: may or may not be important, as cranial drawer sign can be 
negative 
if animal is not under anesthesia because the muscles will tighten if joint is 
painful to 
resist manipulation.  Also chronic change can cause stabilization of the joint. 

Right patella easily luxated to the medial side in right extension.  With stifle 
flexion 
patella returns to trochlear groove: may indicate a congenital malformation of 
the joint.

Pain response (biting) elicited when cranial drawer and patellar luxation 
attempted on left 
hind leg: may indicate that problem not localized to right hind leg only.  

Pain response on dorsal flexion of tail but no pain response to direct pressure 
to spine and 
lumbosacral joint:  may or may not indicate a back problemÉmaybe a pinched nerve 
causing the hind limb lameness.

On video:
Dog not bending left hind stifle while walking.  When she stood up on her hind 
limbs, all 
weight was on the right hind leg and left leg was non-weight bearing:  may 
indicate more 
of a left hind leg problem than the ownerÕs initial complaint (none).  Possible 
compensatory response after initial right leg trauma??