Hi

You can take a chgance and buy it, then tell us.

From my experience, important is holistic approach.inc neck and thoracic spine, triggers points on scapular muscles, arm (m.brachialis) and elbow joint, wrist flrexors' MET ( muscle energy techniques ), wrist extensors( massage,acupuncture, taping).
if does't work can use cheaper then platelet injection- dry needling.
home work - shoulder girdle exercises and eccentrics of wrist extensors, stretching of wrist flexors.

take care
Jarek
Fizjomanual I Fizjosport - Start