Antero-Posterior Knee Stability
Antero-Posterior Knee Stability With Medial-Pivot, Cruciate-Substituting, and Posterior-Stabilized Total Knee Arthroplasty: A Retrospective Study
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Kontakter og lokationer
Studiesteder
-
-
Washington
-
Spokane, Washington, Forenede Stater, 99218
- Spokane Joint Replacement Center
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: Kohorte
- Tidsperspektiver: Andet
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Medial-Pivot Knee Prosthesis
|
Antero-posterior stability of the knee measured with stress x-rays using the TELOS Stress device in 45° and 90° flexion
|
|
Posterior-Stabilized Knee Prosthesis
|
Antero-posterior stability of the knee measured with stress x-rays using the TELOS Stress device in 45° and 90° flexion
|
|
Cruciate-Stubstituting Knee Prosthesis
|
Antero-posterior stability of the knee measured with stress x-rays using the TELOS Stress device in 45° and 90° flexion
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Measurement of antero-posterior stability of the knee with stress x-rays.
Tidsramme: 1 year post-operative
|
Antero-posterior stability of the knee will be measured with stress x-rays using the TELOS Stress device in 45° and 90° flexion.
Stress x-rays will be obtained during a single visit for subjects 1 year or greater post-operatively.
|
1 year post-operative
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Knee Society Score (KSS)
Tidsramme: 1 year post-operative
|
Clinical outcomes will be evaluated via the Knee Society Score (KSS) obtained during a single visit for subjects 1 year or greater post-operatively.
The KSS is subdivided into a Knee Assessment score which rates only the knee joint itself, and a Functional Assessment score which rates the subject's ability to walk and climb stairs.
Both scores range from 0-100, with a higher score indicating a better outcome.
|
1 year post-operative
|
|
Lower Extremity Activity Scale (LEAS)
Tidsramme: 1 year post-operative
|
Clinical outcomes will be evaluated via the Lower Extremity Activity Scale (LEAS) obtained during a single visit for subjects 1 year or greater post-operatively.
The LEAS scale range is 1-18, with a higher value indicating a higher level of activity.
|
1 year post-operative
|
|
Forgotten Joint Score (FJS)
Tidsramme: 1 year post-operative
|
Clinical outcomes will be evaluated via the Forgotten Joint Score (FJS) obtained during a single visit for subjects 1 year or greater post-operatively.
The FJS total score range is 0-100, with higher scores indicating a higher degree of "forgetting" the artificial joint, that is, a lower degree of awareness.
|
1 year post-operative
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: David F Scott, MD, Spokane Joint Replacement Center
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- SJRC-AP-Stability
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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