Please assess the completion status of the following clinical trial:

Trial Title: Popliteal Sciatic Nerve Block: Intraneural or Extraneural?

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* ASA I-II~Exclusion Criteria:~* Neurological diseases~* Diabetes~* Allergies to used drugs~* Chronic pain in treatment~* Electrophysiological alterations at time zero analysis

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Intraneural injection (Type: EXPERIMENTAL): All patients in the arm will receive a single intraneural injection of 12 ml Ropivacaine 1% BBraun, Germany, in the sciatic nerve under echographic guidance.
- extraneural injection (Type: ACTIVE_COMPARATOR): All patients in the arm will receive a single extraneural injection of 12 ml Ropivacaine 1% BBraun, Germany, around the sciatic nerve under echographic guidance.

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