[gemy]

Okay I'm assuming that all digits and elbows were palpated, no pain on palpation, no obvious asymmetries in shape between elbows of right and left legs. No obvious raising of the shoulder tips either side?

I agree with other posters full sedation is not necessary usually in Yorkies for Xrays. Actually that vet is / was not saying full sedation but a tranquillizer. And yes they need to get their feet under them again, prior to being released to your care.

And for ideas of course I have some, but any ideas need to be confirmed by ortho vet with appropriate imaging, be that Xray, or MRI, or US etc.

No. 1. Hairline fracture of any of the digits of his paw, or any of the tarsal bones of his foot. Or a very very small sliver of wood, glass or some other foreign object has imbedded itself into any of the pads of that paw.

No. 2. Ligamentous injury to any of the above

No. 3. Elbows - Elbow dysplasia - or Ligamentous injury to elbows - and or muscular strain

No. 4. Shoulder injury ipsolateral side of lifted paw.

No. 5 Nerve injury to the upper cervicothoracic spine.

I hope that you are at the vet's now, and will update us on any diagnostic findings.