Antero-Posterior Knee Stability



Status:Completed
Conditions:Arthritis, Arthritis, Osteoarthritis (OA), Orthopedic
Therapuetic Areas:Rheumatology, Orthopedics / Podiatry
Healthy:No
Age Range:21 - 80
Updated:1/3/2018
Start Date:January 2016
End Date:December 2017

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Antero-Posterior Knee Stability With Medial-Pivot, Cruciate-Substituting, and Posterior-Stabilized Total Knee Arthroplasty: A Retrospective Study

A retrospective one-time evaluation of total knee patients one year or more postoperative, to
compare antero-posterior (AP) stability with the TELOS Stress device/stress x-rays and
clinical outcomes. Multiple implant brand/models will be included in the study.


Inclusion Criteria:

- Patients willing to sign the informed consent.

- Patients able to comply with study requirements including stress x-rays and
self-evaluations.

- Male and non-pregnant females ages 21 - 80 years of age at the time of surgery.

- Patients who have undergone a primary total knee replacement, are one year or greater
postoperative, and are not having any evidence of failure of their implants.

- Patients with a diagnosis of osteoarthritis (OA), traumatic arthritis (TA), or
avascular necrosis (AVN).

- Patients with intact collateral ligaments.

- Range of motion within five degrees of full extension and a minimum of 120 degrees of
flexion.

Exclusion Criteria:

- Patients with inflammatory arthritis.

- Patients that are morbidly obese, body mass index (BMI) > 40.

- Patients that have had a high tibial osteotomy or femoral osteotomy.

- Patients with neuromuscular or neurosensory deficiency, which would limit the ability
to assess the performance of the device.

- Patients with a systemic or metabolic disorder leading to progressive bone
deterioration.

- Patients that are immunologically compromised, or receiving chronic steroids (>30
days), excluding inhalers.

- Patients bone stock is compromised by disease or infection, which cannot provide
adequate support and/or fixation to the prosthesis.

- Patients with knee fusion to the affected joint.

- Patients with an active or suspected latent infection in or about the knee joint.

- Patients that are prisoners.
We found this trial at
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Spokane, Washington 99218
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Spokane, WA
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