Please assess the completion status of the following clinical trial:

Trial Title: Effect of TENS for Pain and Function After Total Knee Replacement

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Primary osteoarthritis of the knee~* Speak English~* Unilateral total knee replacement~Exclusion Criteria:~* No ambulation, assisted or otherwise~* Use of TENS by subject in past 5 yrs~* Current use of TENS by someone else in subject's household~* Stroke or other condition which seriously impairs sensation in legs or ability to follow directions.~* Condition that precludes use of TENS (pacemaker, allergy to nickel, etc.)~* Chronic pain (other than in surgical knee) that is currently being treated or is severe. (Do not exclude for fibromyalgia).

- Gender: ALL
- Minimum Age: 30 Years
- Maximum Age: 100 Years
- Healthy Volunteers: f

Study Arms:
- Active TENS (Type: ACTIVE_COMPARATOR): High-frequency intense TENS provided with the EMPI Select TENS. The generator emits a balanced, asymmetrical, biphasic waveform and has buttons for variation of frequency and amplitude. A rate modulation frequency of 50pps and 150pps every 0.5 seconds will be used with a pulse width of 150 microseconds (μs).
- Placebo TENS (Type: PLACEBO_COMPARATOR): Subjects randomized to the placebo group will use an EMPI TENS Select device that emits a current for 45 seconds then shuts off. They will be asked when they first feel the current, then the device will be turned down a half-point to provide treatment at a sub-sensory level. This unit displays an active indicator light suggesting to the subject that the unit is actively emitting current. At discharge, subject will be sent home with an adequate supply of batteries and asked to change batteries when the device goes below 4 bars, further suggesting that the device is actively working.
- Standard Care (Type: NO_INTERVENTION): Subjects randomized to Standard Care will be given no TENS unit.

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