Antero-Posterior Knee Stability

David F. Scott, MD

Status

Completed

Conditions

Osteoarthritis

Knee Osteoarthritis

Stability

Total Knee Arthroplasty

Treatments

Other: Stress X-Ray

Study type

Observational

Funder types

Other

Identifiers

NCT03387839

SJRC-AP-Stability

Details and patient eligibility

About

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.

Enrollment

100 patients

Sex

All

Ages

21 to 80 years old

Volunteers

No Healthy Volunteers

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.