Hi SaraH and welcome to NeuroTalk.
My husband had carpel tunnel syndrome in both hands and he had ulnar nerve entrapment in both arms

Physical Therapy (PT) was tried as well as a custom brace for his arms and hands.
In the end he opted for surgery. He had surgery for both arms for the ulnar entrapment and one hand for carpel tunnel syndrome.
This was approximately 21 years ago. He has never had any problems with his arms (ulnar nerve) since the surgeries.