Facts:

Lame in Rt Hind leg
	Unilateral
3 years old
	not necessarily congenital
Pomeranian
	Small breed dog
11.6 pounds
	Not overweight
Fell off bed one year ago with weight bearing lameness on rt hind leg
	Traumatic injury
Became normal within one month
	Traumatic injury, normal healing
6 months later, lameness returned
	Separate incidence or related to first injury
Treated with antiinflammatories, no significant effect
	Non-responsive to antiinflammatories, but we donŐt know what drug or dose
Lameness has not progressed in 6 months, no further treatment
	Other progressive situations less likely now
Indoor dog, supervised play with their other dog
	Possible injury when they were not supervised
One small can of soft food per day
	Maybe a nutritional problem
Grade 3/4 intermittent non-weight bearing lameness on rt hind leg
	Not consistent lameness appearance
Medial buttressing possible on rt stifle
	Laxity?
Cranial drawer negative
	Not a ruptured cranial cruciate ligament most likely
Medial patellar luxation on extension
	Abnormal movement
All other musculoskeletal examinations were normal except stifle on rt leg
	Problem localized to stifle
Pain on left leg palpation and cranial drawer/patellar luxation attempt
	Maybe past injury on left leg
Left leg musculoskeletal examination normal except pain response in stifle
	Maybe past injury on left leg
Pain response on dorsal flexion of tail
	Unknown significance
No pain response on spinal palpation
	May help ruling out spinal cord problems