I'm trying to make the most informed decision possible.  At this point in time, I'm feeling that amputation of Jack's front right limb is the best option, but thought someone else here might have more experience.

I rescued my dog Jack from a shelter; his front leg was crooked and there was evidence of a break that had healed badly.  He was fine for the first few years of his life but after a summer where he continued to limp, we sought a solution to the problem.  Our vet thought he could straighten the limb and make it 'as good as the other leg'.  However, the crooked limb was 5 cm too short so we had to go through a process to lengthen the bone...which I will probably never do again, in all honesty.

Unfortunately this week, after months of setbacks and problems, we've had to declare the whole thing a failure.  Our only options now are either amputation of the leg or a surgery involving a bone graft to close the last 5mm left, a plate on the bone to hold it steady, and cutting of the tendons/fusing the wrist joint due to the leg being unable to flex from that joint any longer.

Jack had developed arthritis in his elbow as early as two years of age (he's now six years) and during the initial try to fix his crooked leg, too much pressure was put on his paw and severely damaged the tissue around his digits, resulting in the loss of two pads and a somewhat now-deformed paw.  There is no promise that the bone-graft/tendon-cutting/wrist-fusing procedure will ever fix his paw and I am worried that the paw itself will develop arthritis in the future as well.

I know there is a wealth of information on front-leg amputees on this site, but I have no idea what to expect in terms of a bone-graft surgery with everyone else attached.  I want to know if it's even worth giving a shot, the whys-and-why-nots of it versus front leg amputation, if anyone has any experience with this.

Thank you so much in advance.