Please assess the completion status of the following clinical trial:

Trial Title: Preoperative Prediction of Postoperative Physical Function

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Scheduled for primary unilateral TKA surgery~* TKA surgery due to end-stage OA of the knee~* Able to perform the preoperative assessment 4 weeks before surgery~* Able to fulfill the KOOS by phone 6 weeks postoperatively~* Mastery of the Dutch language~Exclusion Criteria:~* Undergoing revision arthroplasty, bilateral TKA or hemi-arthroplasty surgery~* TKA not due to KOA~* Patients who weren't able to perform the preoperative assessment or to fulfill the KOOS postoperatively~* Cognitive impairments~* Complete dependence on a wheelchair~* Unable to sign the informed consent form

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

Study Arms:
- Patients awaiting TKA (Type: None): Patients awaiting unilateral total knee arthroplasty due to end-stage knee osteoarthritis.

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