Giving Bute for comfort

[Birker2020]

HB, as the hock joint remodels in spavin formation the intra articular spaces get smaller and smaller. Eventually it fuses and the horse goes sound. It gets progressively more difficult to introduce a needle into the space as the space shrinks, although that it what you want it to do long term. Hope that helps.

Ahh right I understand, sorry I didn't realise you were well on your way to them being fused. No wonder there is not much joint space left.

I understand that the affect sometimes wears off with IASI so I think that's why there is the option of Chemical Arthrodesis (if Tildren which is the next step fails). I understand that it can take up to 18 months with CA to fuse. And that natural fusing without any medical intervention is very hit and miss and sometimes never happens at all.

My own horse has got bone spavin and had her joints medicated. Speaking to the vet and physio and reading information on the internet has been an interesting learning experience.