Please assess the completion status of the following clinical trial:

Trial Title: Prospective Evaluation of Interscalene Nerve Catheters vs. Single Injection Blocks

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* American Society of Anesthesiologists (ASA) physical status 1-3~* 18-79 years of age, inclusive~* body mass index of \< 36 kg/m2.~* The ability to understand local anesthetic related complications and care of a CPNB~* Presence of a caretaker with them during the first 24 hours of local anesthetic infusion, and on a daily basis.~* The ability to communicate with the practitioner managing the catheter.~* Residence within 2 hours of University of Wisconsin Hospital and Clinics~Exclusion Criteria:~* Any contraindication to a continuous interscalene catheter placement~* Clinically significant pulmonary disease~* Clinically significant cardiac disease~* Allergy to ropivacaine~* Peripheral or central nervous system disease~* Current (or planned) anticoagulation therapy or disease~* Local infection over area of catheter placement~* Renal or hepatic failure~* History of opioid dependence~* Significant psychiatric disease~* Pregnancy or lactation (Subjects will be asked if it is possible they could be pregnant. If a subject responds in the affirmative, a pregnancy test will be done.)~* Seizure Disorder

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 79 Years
- Healthy Volunteers: f

Study Arms:
- interscalene block (Type: EXPERIMENTAL): interscalene block
- interscalene catheter (Type: EXPERIMENTAL): interscalene catheter

Based on this trial design, predict the completion outcome and termination type (if applicable).