- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT01831219
ROBODOC® Clinical Trials: Long-Term Follow-Up
A Follow-Up Study of Subjects Enrolled in the Pin-Based (IDE G920035) and Pinless (IDE G000071) ROBODOC® Surgical System Clinical Trial
Studieöversikt
Status
Betingelser
Detaljerad beskrivning
A. Description This study is a follow-up study looking at mid- and long-term outcomes for participants in the IDE G920035 and IDE G000071 Clinical Trials. The IDE G920035 was a randomized, controlled trial with a 1:1 ROBODOC:control randomization. The IDE G000071 was a randomized, controlled trial with a 3:1 ROBODOC:control randomization.
B. Selection Criteria Only subjects who were originally enrolled in the IDE G920035 and IDE G000071 Clinical Trials are eligible to participate in this study. Subjects selected for this study will have completed a minimum of the 3 month follow-up requirements of the IDE G920035 and IDE G000071 Clinical Trials. Enrolled subjects must be willing to give a relevant medical history, undergo a focused physical examination of their operative hip(s), have an AP and lateral x-ray taken of their operative hip(s) and complete the Harris Hip Score, SF-12, UCLA Activity Score, VAS pain self-assessment, and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaires.
The study subject may be reimbursed for reasonable travel expenses associated with their participation in the study. All requests for reimbursement must be pre-approved by Curexo Technology Corporation.
C. Data Collection Subjects participating in this study will be asked to visit the study site to undergo a physical examination of their operative hip(s). During this visit, they will be asked to give a relevant medical history, have AP and lateral radiographs taken of their operative hip(s), and complete the Harris Hip Score, SF-12, UCLA Activity Score, VAS pain self-assessment, and WOMAC questionnaires.
If the subject has obtained AP and lateral radiographs within the last year, these can be used instead of requiring them to obtain new radiographs specifically for this study.
If the subject is unable or unwilling to come in for the examination, they will be asked to fill out the Harris Hip Score, SF-12, UCLA Activity Score, VAS pain self-assessment, and WOMAC questionnaires via mail or over the phone with the Study Nurse/Coordinator. Additionally, they will be asked to obtain current AP and lateral radiographs taken of their operative hip(s) with their current orthopaedic surgeon to be transferred to the study site.
D. Blinding An independent radiologist or orthopaedic surgeon, experienced in reading hip x-rays, who is blinded to the original randomly assigned study group, will read the follow-up x-rays taken on subjects enrolled in this study.
E. Randomization There will be no further randomization of subjects in this study. Prior subject records will determine the original study group (ROBODOC or manual control) to which the subject was randomly assigned in IDE G920035 or IDE G000071.
F. Baseline Measurements No baseline measurements will be collected for this follow-up study. G. Power and Sample Size The sample size will be determined by the number of qualifying subjects from the IDE G920035 and IDE G000071 Clinical Trials who can be located and who agree to participate in this follow-up study. We anticipate approximately 20 patients from IDE G920035 and 30 patients from IDE G000071 to agree to study participation. This sample size will provide 82% power (α = 0.05, 2-tailed) to detect a 20% (5 versus 2.5, pooled SD = 3.0) difference between the ROBODOC and control groups on the VAS at the last available follow-up.
Studietyp
Inskrivning (Faktisk)
Kontakter och platser
Studieorter
-
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California
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Sacramento, California, Förenta staterna, 95816
- Sutter Institute for Medical Research
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Beskrivning
Inclusion Criteria:
- Subjects included in this study will have completed the follow-up requirements of the IDE G920035 or the IDE G000071 Clinical Trial;
- Subjects must be willing to give a relevant medical history, undergo a focused physical examination of their operative hip(s) and have an AP and lateral x-ray taken of their operative hip(s);
- Subjects must be willing to complete the Harris Hip Score, SF-12, WOMAC, UCLA Activity Score, and VAS pain self-assessment questionnaires; and
- Subjects must be willing to sign an informed consent document.
Exclusion Criteria:
- There are no exclusion criteria.
Studieplan
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
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ROBODOC
The ROBODOC group received total hip arthroplasty using the ROBODOC Surgical system for preparation of the femoral canal for a femoral stem implant.
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Conventional
The conventional group received total hip arthroplasty using the conventional manual tools including a broach to prepare the femoral cavity for femoral stem replacement.
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Presence of Osteolysis
Tidsram: 14 months
|
Presence of osteolysis determined by looking at patient x-rays as described by Gruen et al and Johnson et al.
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14 months
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Western Ontario and McMaster Universities Osteoarthritis Index
Tidsram: 2 months
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The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) will be used to measure clinical outcome.
The WOMAC total score ranges 96 (best) to 0 (worst).
The WOMAC pain score ranges 0-20, the stiffness score ranges 0-8, and functional limitation score ranges 0-68.
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2 months
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Harris Hip Score
Tidsram: 2 months
|
The Harris Hip Score will be measured to determine clinical outcome.
The Harris Hip total score ranges 100 (best) to 0 (worst) and it is computed by the sum of the pain score (0-44 points), function (, 0-47 points), absence of deformity (4 points), and range of motion (5 points).
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2 months
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Health Status Questionnaire-12
Tidsram: 2 months
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The Health Status Questionnaire-12 (HSQ-12) will be used to measure clinical outcome.
HSQ-12 total score ranges from 0 (worst) to 800 (best).
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2 months
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UCLA Activity Score
Tidsram: 2 months
|
The UCLA Activity Score will be used to measure clinical outcome.
The UCLA Activity Score ranges 10 (best) to 0 (worst).
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2 months
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Visual Analog Pain Score
Tidsram: 2 months
|
The Visual Analog Scale pain questionnaire will be used to measure clinical outcome.
The pain VAS is a continuous scale which range from 0 (no pain) to 100 [100-mm scale] ("worst imaginable pain" ).
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2 months
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Andra resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Number of Operated Hips That Required Revision/Reoperation
Tidsram: At follow-up visit (7-20 years post-operatively)
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Implant survivorship will be determined from the medical history CRF by comparing the percentage of ROBODOC and manual control subjects who have required revision or re-operation THA procedures on the hip in question since their original study procedure which took place 7-20 years previously.
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At follow-up visit (7-20 years post-operatively)
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Samarbetspartners och utredare
Sponsor
Utredare
- Huvudutredare: William L Bargar, MD, Department of Orthopaedics, University of California at Davis
Publikationer och användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 12-PROTO-01
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
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