Hi Emma
Its interesting that she's a Collie because I've seen this most often in older Collies and yes there might be a problem here. Loss of the strength in her flexor tendons can cause the front leg carpal joints to weaken. I would advise you to get her checked over. It might be that nothing is needed at the moment but if the condition progresses she may need treatment. Keeping her at an ideal weight and not allowing her to get too heavy would be helpful in delaying the progression of the condition.
Cathy Wickenden BVet Med MRCVS
Barton Lodge Veterinary Centre
1 Midland Road, Hemel Hempstead, Hertfordshire, HP2 5BH
Tel: 01442 216048 24 hours
[
www.bartonlodgevets.co.uk]