Please assess the completion status of the following clinical trial:

Trial Title: Postoperative Function Following Partial and Total Knee Replacement

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Patients that have elected to undergo either partial or total knee replacement, as well as a control group of patients free of lower extremity pathology~Exclusion Criteria:~* Sensory, neurological, or general health conditions that alter perception of the patient's limb in space~* Vestibular disorders will be excluded in order to protect against falls during functional testing~* Unable to understand the questions used to obtain the Knee Society Score~* Minors and prisoners will be excluded from the study

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

Study Arms:
- 1 (Type: ACTIVE_COMPARATOR): Patients undergoing total knee replacement
- 2 (Type: NO_INTERVENTION): Healthy volunteers that are not undergoing knee replacement surgery
- 3 (Type: EXPERIMENTAL): Patients undergoing partial knee replacement with the Oxford mobile bearing implant system
- 4 (Type: EXPERIMENTAL): Patients undergoing partial knee replacement with the Vanguard M implant system

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