Wow.
I never knew these symptoms were as prevalent as it seems.
A MGH Neurologic specialities dept. MD youth fresh out of Harvard dx'd a friends similar condition as C^5-C^8 having been multiply crushed. C^6 was removed it was so bad whilst C5-C7 fused. Yes, MRIs had just become standard DX tool then in the late (90s)
This after another retired Armed Services Medical specialist that had retired from the service to the Faulkner Hosp. in BOS had mistakenly dx'd it as a broad stroked circumstance of spinal cord damage during the prior decade!
It's really important everyone seek out as many DXs as possible, particularly before any treatment ensues. The Faulkner hospitals well meaning circus had in the interum transposed both the individuals ulner/median nerves at the elbows canals ...for no reason!
This created additional problems!
I'm positive MGHs additional DXs insights gave this individual another decade or so of marginal quality life.
Good Luck!