 Approximately 334 participants will be recruited from patients referred for treatment to hand surgeons trained in CI and PNA at two Calgary, AB hospitals. Need for treatment will be determined in the usual fashion, and the option for entry into the study will be proposed to patients meeting inclusionexclusion criteria. Participants will be randomized into either the PNA or CI treatment group. The surgeon will not be blinded to the procedure group; however, the therapist measuring outcomes will be, and the study participants will need to not divulge to the therapists which group they are in. 