Please assess the completion status of the following clinical trial:

Trial Title: LigaSure Small Jaw® Versus Conventional Neck Dissection in Head and Neck Cancer Patients

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

Eligibility Criteria:
Inclusion Criteria:~* Patients aged 20 to 80 years scheduled to receive neck dissection due to head and neck cancer~Exclusion Criteria:~* history of coagulation disorders~* prior radiation to the neck~* prior neck dissection~* declined to participate

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Ligusure assisted neck dissection (Type: ACTIVE_COMPARATOR): The study group patients were treated using the LigaSure vessel sealing system (Small Jaw® with ForceTriad®; Covidien, Colorado, USA) for dissection and hemostasis throughout the whole procedures during neck dissection.~Participants were asked to take a Voren enteric-microencapsulated (Diclofenac 50 mg/capsule) capsule 3 times a day for pain relief postoperatively. An additional capsule before sleep was allowed if persistent pain was told by the patient. When intolerable pain was complained in spite of oral analgesic, pethidine (meperidine 50 mg/ampule) injection was prescribed every 6 hours.
- Conventional neck dissection (Type: OTHER): The control group patients were treated using conventional cold instrument dissection, monopolar electrocautery hemostasis, and suture ligation during neck dissection.~Participants were asked to take a Voren enteric-microencapsulated (Diclofenac 50 mg/capsule) capsule 3 times a day for pain relief postoperatively. An additional capsule before sleep was allowed if persistent pain was told by the patient. When intolerable pain was complained in spite of oral analgesic, pethidine (meperidine 50 mg/ampule) injection was prescribed every 6 hours.

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