Re: Wry Neck
They can be related, yes. There are various ways that scoliosis can cause torticollis (wry neck). It cam be caused by having a very high thoracic/cervical scoliosis curve. Also, as I've just mentioned on an earlier thread, any form of sagittal imbalance (where your head is too far forward, or too far back) means that your shoulder and neck muscles take on too much of the weight of your head. This can cause them to go into spasm, and that can cause a wry neck too.
Another possible cause is a pinched nerve in the neck, again causing pain and imbalance. The fact that you have nerve pains going into your arm suggest that this may well be a factor in your case.
Hope you can find something that helps ease it
37 years old, diagnosed with infantile idiopathic scoliosis at 6 months old with curves of 62(T) and 40(L) degrees. Casting and Milwaukee braces until surgery at 10 - ant release/pos fusion T1-T12, halo traction. Post op cast and then TLSO. Further surgery at 18 (ant release/pos fusion extended to L3 to include lumbar curve, costoplasty) and 25 (another costoplasty). Fusion extended to L4 at 33 (XLIF with 4 pedicle screws and two short rods). Pre-op curves: 76(T) and 70(L). Post-op curves: 45(T) and 35(L). Diagnosed with Ehlers-Danlos Syndrome aged 34; scoliosis almost certainly due to this rather than being idiopathic.