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Vertos Mild - Post Market Patient Outcomes

22. februar 2013 opdateret af: The Center for Pain Relief, Inc.

Single - Center, Prospective, Patient Outcomes Assessment of Minimally Invasive Lumbar Decompression With the Mild Devices in Patients With Symptomatic Central Canal Stenosis.

This is a single-center study evaluating the outcomes of patients with painful lumbar spinal stenosis who were treated with the mild procedure (minimally invasive lumbar decompression. The patients will be followed for 6 months after the procedure.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Approximately 50 patients at a single center will be enrolled and followed for a period of up to 26 weeks. Adult patients with symptomatic lumbar spinal stenosis who meet the enrollment criteria will be offered the mild procedure as an alternative to surgery or continued standard non-surgical medical management.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

46

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • West Virginia
      • Charleston, West Virginia, Forenede Stater, 25301
        • The Center for Pain Relief, Inc
      • Charleston, West Virginia, Forenede Stater, 25301
        • The Center for Pain Relief, Inc.

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Symptomatic and lumbar spinal stenosis caused by dorsal element hypertrophy
  • Prior failure of conservative therapy and Oswestry Disability Index (ODI) >20%
  • Radiologic evidence of lumbar spinal stenosis, ligamentum flavum hypertrophy (typically >2.5mm),confirmed by pre-op MRI/CT report
  • Central canal cross sectional area clearly reduced per MRI/CT report
  • If present, anterior listhesis < or = to 5.0mm (preferred) and deemed stable by the Investigator
  • Able to walk at least 10 feet unaided before being limited by pain
  • Available to complete 26 weeks of follow up
  • A signed Consent Form is obtained from the patient
  • Adults 18 years of age or older

Exclusion Criteria:

  • Prior surgery at the intended treatment level
  • Compound fracture with intraspinal retropulsion contributing to spinal stenosis
  • Disabling back or leg pain from causes other than lumbar spinal stenosis
  • Disc protrusion or osteophyte formation severe enough to confound study outcome
  • Facet hypertrophy severe enough to confound study outcome
  • Bleeding disorders and/or current use of anti-coagulants
  • Use of acetylsalicylic acid (ASA) and/or non-steroidal anti-inflammatory drug (NSAID) within 5 days of treatment
  • Epidural steroids with 3 weeks prior to procedure
  • Inability of patient to lie prone for any reason with anesthesia support
  • Metabolic wound healing pathologies that may be deemed by the Investigator to compromise the study outcomes
  • Dementia and/or inability to give informed consent
  • Pregnant and/or breastfeeding
  • On workman's Compensation or considering litigation associated with back pain

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Andet: Minimally invasive lumbar decompression
Procedure: Minimally Invasive Lumbar Decompression
This minimally invasive procedure is performed under fluoroscopic image guidance through a dorsal approach to the spine. The patient is given local anesthesia and a sedative but needs to be responsive to the surgeon's questions for neurological monitoring. Under image guidance, the mild tools are inserted and positioned on the posterior spinal lamina, to the left or right of the spinous process. The tools are used to cut and remove tissue and bone from the posterior side of the lumbar spine to create a space inside the spine that can help decompress some of the spinal nerves.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Pain as Measured by Visual Analog Scale (VAS).
Tidsramme: Baseline and six months
A validated ten point scale was used where ten is the worst possible pain and zero represents complete lack of pain. The change from baseline to six months is presented below, where a positive value represents the baseline value minus the 6 month value.
Baseline and six months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Improvement in Functional Mobility
Tidsramme: baseline and month 6
Measured subjectively by the Oswestry Disability Index. Extent of disturbance in activities of daily living is subjectively reported using this validated instrument.Higher score indicate greater limitations in activity. The questionnaire is divided into 10 topics including pain intensity, personal care, lifting walking standing sitting, sleeping social life, traveling, employment/homemaking. Each topic is rated zero (no pain or no limitation) to 5 (high pain or very limited physically) based on typical pain and/or physical limitations. The worst possible score is 50 (100% disability) and the best score is zero (0% disability).Change from baseline to month 6 is reported below, where a positive value represents the baseline value minus the month 6 value.
baseline and month 6
Quality of Life as Measured by the Symptom Severity Scale of the Zurich Claudication Questionnaire (ZCQ).
Tidsramme: Baseline and month 6
As a validated patient outcome tool specific to lumbar spinal stenosis, Zurich Claudication Questionnaire (ZCQ) captures symptom severity as a quality of life indicator. A mean score of 1 is the best possible outcome representing 'no pain' in symptom severity, whereas higher mean scores up to a maximum of 5 indicate worse patient symptoms. The symptom severity outcomes are presented below as change from baseline to month 6 where a positive value represents the baseline value minus the 6 month value. Treatment is considered 'successful' or 'clinically relevant' if the patient population has at least a 0.5 improvement in symptom severity.
Baseline and month 6
Quality of Life as Measured by Physical Function Scale of the Zurich Claudication Questionnaire (ZCQ).
Tidsramme: Baseline and month 6
For this ZCQ domain, a mean score of 1 is the best possible outcome representing 'no limitation' in physical function, whereas a mean score of 4 indicates worst physical function. Zurich Claudication physical function scale from this validated lumbar spine-specific measurement questionnaire are reported below as change from baseline to month 6. A positive value represents the baseline value minus the 6 month value. Treatment is considered clinically relevant when at least a 0.5 improvement is achieved.
Baseline and month 6

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

The Center for Pain Relief, Inc.

Samarbejdspartnere

Vertos Medical, Inc.

Efterforskere

  • Ledende efterforsker: Timothy R Deer, MD, Center for Pain Relief, Inc

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. februar 2010

Primær færdiggørelse (Faktiske)

1. januar 2012

Studieafslutning (Faktiske)

1. januar 2012

Datoer for studieregistrering

Først indsendt

24. februar 2010

Først indsendt, der opfyldte QC-kriterier

25. februar 2010

Først opslået (Skøn)

26. februar 2010

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

2. april 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. februar 2013

Sidst verificeret

1. februar 2013

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • #D1

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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Kliniske forsøg med Minimally Invasive Lumbar Decompression

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