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ScoliosisNCT02058238

ADDRESS - Adult Deformity Robotic vs. Freehand Surgery to Correct Spinal Deformity

An observational study of Scoliosis and Kyphosis, run by Mazor Robotics at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

To quantify potential short- and long-term benefits of robotically-guided minimally invasive (MIS) or open-approach spine surgery in adult patients undergoing multi-level spinal instrumentation surgery, in comparison to image- or navigation-guided instrumentation in a matching cohort of control patients, performed… Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Scoliosis, Kyphosis, Kyphoscoliosis
How many people
0 participants
Where
1 siteUnited States
Study dates
3 Oct 2014to 1 Mar 2015
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult patients (age over 21 years) undergoing long (5 or more consecutive vertebrae) open or minimally invasive instrumentation, correction and fusion sugery in the thoracic, lumbar or sacral spine who have been found to have kypho/scoliotic curve, sagittal or coronal imbalance or a combination of these.

Who may be able to join

  • Adult patients (age 21 years and older), undergoing long (5 consecutive vertebrae or more) spinal fusion surgery, between T1 to the sacrum.
  • Cases may include surgeries involving iliac screws (e.g., Galveston technique or S2AI screws) although these screws will not be included in the data analysis.
  • Cases may include augmented cases (when one or more of the screws are inserted into vertebrae after a vertebral augmentation procedure, such as kyphoplasty or vertebroplasty).
  • Patient capable of complying with study requirements
  • Signed informed consent by patient

Who cannot join

  • Infection or malignancy
  • Primary abnormalities of bones (e.g. osteogenesis imperfecta)
  • Primary muscle diseases, such as muscular dystrophy
  • Neurologic diseases (e.g. Charcot-Marie Tooth, Guillain-Barre syndrome, cerebral palsy, spina bifida, or neurofibroma)
  • Spinal cord abnormalities with any neurologic symptoms or signs
  • Spinal cord lesions requiring neurosurgical interventions, such as hydromyelia
Show all 12Show fewer
  • Paraplegia
  • Patients who have participated in a research study involving an investigational product in the 12 weeks prior to surgery
  • Any other significant disease or disorder which, in the opinion of the Investigator, may either put the participants at risk because of participation in the study, or may influence the result of the study.
  • Pregnancy
  • Patient cannot follow study protocol, for any reason
  • Patient cannot or will not sign informed consent

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Kansas Medical Center

    Kansas City, Kansas, 66160

Other trials in United States

About this study

Official title: ADDRESS - Multicenter, Partially-randomized Controlled Trial of Adult Deformity Robotic vs. Freehand Surgery to Correct Adult Spine Deformity

To quantify potential short- and long-term benefits of robotically-guided minimally invasive (MIS) or open-approach spine surgery in adult patients undergoing multi-level spinal instrumentation surgery, in comparison to image- or navigation-guided instrumentation in a matching cohort of control patients, performed using a freehand technique, both in MIS and open approaches.

Keywords
Robotic-guided spinal fusions, Scoliosis, Kyphoscoliosis, Spinal deformity, Spondylosis
Medical subject headings
Scoliosis, Kyphosis, Spondylosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT02058238
Study groupRoleWhat they receive
Arm 1: Robotic-guided, Open approachAdult patients (age> 21 years) undergoing long (>4 consecutive vertebrae) open instrumentation, correction and fusion surgery in the thoracic, lumbar or sacral spine for a kypho/scoliotic curve, sagittal or coronal imbalance or a combination of these.
Arm 2: control-arm - non-robotic, open approachAdult patients (age> 21 years) undergoing long (>4 consecutive vertebrae) open instrumentation, correction and fusion surgery in the thoracic, lumbar or sacral spine for a kypho/scoliotic curve, sagittal or coronal imbalance or a combination of these.
Arm 3: robotic-guided, MIS approachAdult patients (age> 21 years) undergoing long (>4 consecutive vertebrae) open instrumentation, correction and fusion surgery in the thoracic, lumbar or sacral spine for a kypho/scoliotic curve, sagittal or coronal imbalance or a combination of these.
Arm 4: control-arm - freehand, MIS approachAdult patients (age> 21 years) undergoing long (>4 consecutive vertebrae) open instrumentation, correction and fusion surgery in the thoracic, lumbar or sacral spine for a kypho/scoliotic curve, sagittal or coronal imbalance or a combination of these.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of surgical complications

    New neural deficits, implant-related durotomy, infection requiring surgery, excessive blood loss

    Measured: 1 year

  2. Intraoperative radiation exposure

    as measured by the C-arm, normalized per screw

    Measured: Day of operation

  3. Revision surgeries

    All cause revisions, including medical and surgical complications.

    Measured: 2 years

Secondary outcomes (12)
  1. Deformity correction as measured on plain radiographs

    Parameters of sagittal and coronal balance

    Measured: Within 2 years from surgery

  2. Clinical outcome measures assessed using health-related quality of life questionnaires

    Visual Analog Scale (VAS) back and leg, Oswestry Disability Index (ODI), SRS22 questionnaire, European Quality - 5 dimensions (EQ-5D-5L)

    Measured: up to 10 years post-operative

  3. Pedicle screw instrumentation accuracy

    Accuracy will be quantified in millimeters and scored using the Gertzbein Robbins classification, based on post-operative CTs that are clinically necessary for the management of the patient.

    Measured: Within 1 year of surgery

  4. Length of convalescence

    Length of stay at the hospital, destination at discharge, time to return to normal activities, time to return to work

    Measured: Within 2 years of surgery

  5. Ratio of executed vs. planned screws

    Number of screws planned to be robotically inserted but manually inserted instead, and cause.

    Measured: Day of surgery

  6. Times of intra-operative stages

    Instrumentation time per screw, total surgery time

    Measured: Day of surgery

  7. Implant Failure

    The implant failure rate as measured within one year post-surgery

    Measured: Within 1 year post-surgery

  8. Number of Abandoned Screws

    Number of screws intended to be instrumented with the robot and abandoned for cause.

    Measured: Day of surgery

  9. Number of screws instrumented freehand

    Number of screws planned to be instrumented robotically and instrumented freehand instead.

    Measured: Day of surgery

  10. Clinical performance of instrumentation technique

    Implant instrumentation time, length of surgery

    Measured: Day of surgery

  11. Fusion rate/pseudoarthrosis

    Fusion/pseudoarthrosis as measured within one year of surgery

    Measured: Within one year post-surgery

  12. Neuromonitoring events

    The number of clinically significant neuromonitoring events that may or may not lead to removal or reinstrumentation of the pedicle screw.

    Measured: Day of surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Feb 2014 (estimated)
  2. Study start3 Oct 2014
  3. Primary completion1 Mar 2015
  4. Study completion1 Mar 2015

Why it stopped: Sponsor Decision

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02058238
Sponsor's protocol ID
CLN105
Status last verified
Sep 2020
First submitted
6 Feb 2014
Last updated
5 Oct 2020
Results posted
No
Data monitoring committee
No

Publications

  • Hu X, Ohnmeiss DD, Lieberman IH. Use of an ultrasonic osteotome device in spine surgery: experience from the first 128 patients. Eur Spine J. 2013 Dec;22(12):2845-9. doi: 10.1007/s00586-013-2780-y. Epub 2013 Apr 16.

    PubMed 23584231
  • Devito DP, Kaplan L, Dietl R, Pfeiffer M, Horne D, Silberstein B, Hardenbrook M, Kiriyanthan G, Barzilay Y, Bruskin A, Sackerer D, Alexandrovsky V, Stuer C, Burger R, Maeurer J, Donald GD, Schoenmayr R, Friedlander A, Knoller N, Schmieder K, Pechlivanis I, Kim IS, Meyer B, Shoham M. Clinical acceptance and accuracy assessment of spinal implants guided with SpineAssist surgical robot: retrospective study. Spine (Phila Pa 1976). 2010 Nov 15;35(24):2109-15. doi: 10.1097/BRS.0b013e3181d323ab.

    PubMed 21079498

Questions about this trial

What is this clinical trial studying?

An observational study of Scoliosis and Kyphosis, run by Mazor Robotics at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 5 Oct 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of surgical complications (time frame: 1 year). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02058238, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Oct 2020.

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