Please assess the completion status of the following clinical trial:

Trial Title: Stryker Triathlon Total Knee System for Total Knee Arthroplasty Implanted Using ShapeMatch® Cutting Guides: Sub-Study B

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* The patient is a male or non-pregnant female between the ages of 50-90.~* The patient requires a primary total knee replacement and is indicated for computer-assisted surgery.~* The patient has a primary diagnosis of osteoarthritis (OA).~* The patient has intact collateral ligaments.~* The patient is able to undergo MRI scanning of the affected limb.~* The patient has signed the study specific, HREC-approved, Informed Consent document.~* The patient is willing and able to comply with the specified pre-operative and post-operative clinical and radiographic evaluations.~Exclusion Criteria:~* The patient has a history of total, unicompartmental reconstruction or fusion of the affected joint.~* The patient has had a high tibial osteotomy or femoral osteotomy.~* The patient is morbidly obese (BMI ≥ 40).~* The patient has a deformity which will require the use of stems, wedges or augments in conjunction with the Triathlon Total Knee System.~* The patient has a varus/valgus malalignment ≥ 15° (relative to mechanical axis).~* The patient has a fixed flexion deformity ≥ 15°.~* The patient has a neuromuscular or neurosensory deficiency, which would limit the ability to assess the performance of the device.~* The patient has a systemic or metabolic disorder leading to progressive bone deterioration.~* The patient is immunologically suppressed or receiving steroids in excess of normal physiological requirements.~* The patient has a cognitive impairment, an intellectual disability or a mental illness.~* The patient is pregnant.~* The patient has metal hardware present in the region of the hip, knee or ankle (as this is known to create geometrical distortion in the region of the implant).~* The patient has any known contraindications for undergoing assessment by MRI (e.g. ferrous implants, metallic clips, magnetically activated implanted devices such as cardiac pacemakers, etc).

- Gender: ALL
- Minimum Age: 50 Years
- Maximum Age: 90 Years
- Healthy Volunteers: f

Study Arms:
- ShapeMatch Cutting Guides with Triathlon (Type: OTHER): The ShapeMatch® Cutting Guides are intended to be used as patient-specific surgical instrumentation to assist in the positioning of knee arthroplasty components intra-operatively and in guiding the marking of bone before cutting.~They are intended for single use only.

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