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Osteoarthritis, KneeNCT01108237

Alignment Comparison Between TruMatch™ Personalized Solutions and Conventional Total Knee Replacement Instrumentation

A study testing TruMatch™ Personalized Solutions and Total Knee Arthroplasty with Conventional Instrumentation. in people with Osteoarthritis, Knee, run by DePuy Orthopaedics at 4 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This investigation is intended to provide clinical information about alignment using TruMatch™ and to compare the results to a conventional total knee replacement. TruMatch™ will be compared to a historical control study, which compares alignment results of computer aided surgery (CAS) and conventional surgical… Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Osteoarthritis, Knee
What is being tested?
TruMatch™ Personalized Solutions and Total Knee Arthroplasty with Conventional Instrumentation.
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
78 participants
Where
4 sitesUnited States
Study dates
1 Oct 2009to 1 Mar 2011
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects meeting all of the following specific criteria will be considered for participation in the study:
  • Subject is male or female and between the ages of 18 and 80 years old, inclusive.
  • Subject requires a primary total knee replacement and is considered by the Investigator to be suitable for the specific knee prosthesis identified in the protocol.
  • Subject has given voluntary, written informed consent to participate in this clinical investigation and has authorized the transfer of his/her information to DePuy.
  • Subject has given consent to the transfer of his/her information to DePuy.
  • Subject, who, in the opinion of the Clinical Investigator at the time of preoperative planning, are suitable for implantation using TruMatch™ instrumentation and whose surgical plan (patient proposal) is approved. For example, no femoral nails/bone plates that extend into the knee, i.e. within 8cm of joint line; no metal device that could cause CT scatter about the knee and no deformities greater than 15 degrees of fixed varus, valgus, or flexion

Who cannot join

  • Subjects will be excluded from participation in the trial if they meet any of the following criteria:
  • The Subject has, in the opinion of the Investigator, an existing condition that would compromise their participation and follow-up in this study.
  • The Subject is a woman who is pregnant or lactating.
  • The Subject is a known drug or alcohol abuser or has a psychological disorder that could affect follow-up care or treatment outcomes.
  • The Subject has participated in a clinical investigation with an investigational product in the last 3 months.
  • The Subject is currently involved in any personal injury litigation, medical-legal or worker's compensations claims.
Show all 12Show fewer
  • The Subject has previously had a prosthetic knee replacement device (any type including unicompartmental, total knee arthroplasty, patellofemoral arthroplasty) of the affected knee or a previous patellectomy.
  • The Subject presents ankylosis of the hip joint on the side to be treated or previous ipsilateral UTO/HTO.
  • The Subject requires simultaneous bilateral total knee replacements.
  • The Subject had a contralateral TKA and that knee was previously entered in the study.
  • Subject in whom the surgeon intends to implant a knee prosthesis that is not the cruciate retaining or posterior substituting PFC Sigma total knee arthroplasty.
  • Subjects who have inflammatory arthritis

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • Towson Orthopaedic Associates

    Baltimore, Maryland, 21204

  • OrthoCarolina

    Charlotte, North Carolina, 28207

  • Valley Orthopaedic Associates

    Renton, Washington, 98055-5791

  • Summit Orthopaedics, LTD

    Saint Paul, Minnesota, 55102

Other trials in United States

About this study

Official title: Comparison of In Vivo Alignment With TruMatch™ Personalized Solutions Compared to Conventional Instrumentation in Total Knee Replacement (TKR)

This investigation is intended to provide clinical information about alignment using TruMatch™ and to compare the results to a conventional total knee replacement. TruMatch™ will be compared to a historical control study, which compares alignment results of computer aided surgery (CAS) and conventional surgical techniques.

The purpose of this investigation is to determine whether TruMatch™ alignment is non-inferior to alignment achieved with conventional instrumentation. This investigation will compare long leg alignment in total knee replacement achieved by the two types of procedures. Radiographic analysis will be performed by the same independent radiographic reviewer as the historical control study.

Read the detailed description

The study is designed as a prospective, multi-center, non-randomized, clinical investigation to determine whether TruMatch™ alignment is non-inferior to alignment achieved in a recently completed study (historical control) with conventional instrumentation.

Each enrolled Subject will undergo a total knee replacement using the TruMatch™ surgical technique. This investigation will require the Subject to be followed once postoperatively to collect radiographs. Follow-up will occur typically 2 to 12 weeks after surgery and when the Subject can achieve full leg extension (+/-5 degrees) and can tolerate weight-bearing.

Being tested
TruMatch™ Personalized Solutions, Total Knee Arthroplasty with Conventional Instrumentation.
Keywords
Arthroplasties, Knee Replacement, Arthroplasties, Replacement, Knee, Arthroplasty, Knee Replacement, Knee Replacement Arthroplasties, Knee Replacement Arthroplasty, Knee Replacement, Total, Replacement Arthroplasties, Knee, Replacement Arthroplasty, Knee, Replacement, Total Knee, Total Knee Replacement
Medical subject headings
Osteoarthritis, Knee

What participants receive

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

  • TruMatch™ Personalized SolutionsOther

    TruMatch™ Personalized Solutions is the brand name of DePuy Orthopaedics, Inc. custom patient instrumentation. TruMatch™ is a pair of custom-made cutting blocks that allow distal femoral and proximal tibial cuts to be made according to a predefined surgical plan. The inner surface of the femoral block is manufactured to match the geometry of the patient's distal femur. The inner surface of the tibial block is manufactured to match the patient's proximal tibia. The geometric data is obtained from a CT scan and a preoperative plan approved by the surgeon.

  • Total Knee Arthroplasty with Conventional Instrumentation.Device

    Total Knee Arthroplasty (PFC Sigma System) implanted using conventional instruments, not TruMatch™ instrumentation.

Study groups in NCT01108237
Study groupRoleWhat they receive
TruMatch™ Personalized SolutionsOtherCruciate Retaining and Posterior Stabilized Fixed-Bearing or Rotating Platform Total Knee Arthroplasty (PFC Sigma System) implanted using TruMatch™ Personalized Solutions
Receives: Other: TruMatch™ Personalized Solutions
Historical ControlOtherTotal Knee Arthroplasty (PFC Sigma System) implanted using conventional and CAS surgical techniques without TruMatch™ instrumentation.
Receives: Device: Total Knee Arthroplasty with Conventional Instrumentation.

What is being measured

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

  1. Mechanical Axis Alignment(Absolute Value Measured in Degrees)Using 51 Inch Long Leg Films

    Limb alignment in TKR is important for accurate implant positioning. It is measured by looking at the mechanical axis of the limb. This axis is an imaginary line that starts at center of the femoral head and ends in the center of the talus. In a knee with normal alignment, this line (axis) passes near the joint center. Before surgery, the planned joint angle is recorded. This study measured the difference between the mechanical axis angle reached after surgery and the planned angle. Subjects with a mechanical alignment within 3 degrees of the planned angle were considered a success.

    Measured: 12 weeks postoperatively (when subject has reached full knee extension)

Secondary outcomes (5)
  1. Compare Intraoperative Time Data During Procedure for Skin-to-skin Time in Minutes

    Intraoperative (skin to skin) time was measured to the nearest minute. TruMatch personalized Solutions and Conventional instrumentation outcomes are provided

    Measured: During the Procedure

  2. Tourniquet Time Measured in Minutes During the Procedure for TruMatch and Conventional Instruments

    Intraoperative Tourniquet time was measured to the nearest minute. TruMatch and Conventional instrumentation outcomes are provided

    Measured: During the Procedure

  3. Tourniquet to 1st Bone Cut Measured in Minutes During the Procedure for TruMatch and Conventional Instruments

    Intraoperative Tourniquet to 1st Bone Cut time was measured to the nearest minute. TruMatch and Conventional instrumentation outcomes provided

    Measured: During the Procedure

  4. Coronal Alignment Femoral and Tibial

    Femoral Component to mechanical axis (degrees) and Tibial component to mechanical axis (degrees)

    Measured: 3-months

  5. Sagittal Component Alignment

    Sagittal Component Alignment analyzed and reported at 3- months

    Measured: Collected at Pre-Op, 3 months

Timeline

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

  1. First posted21 Apr 2010 (estimated)
  2. Study start1 Oct 2009
  3. Primary completion1 Mar 2011
  4. Study completion1 Mar 2011

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
78 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01108237
Sponsor's protocol ID
08003
Status last verified
Oct 2023
First submitted
1 Apr 2010
Last updated
24 Oct 2023
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing TruMatch™ Personalized Solutions and Total Knee Arthroplasty with Conventional Instrumentation. in people with Osteoarthritis, Knee, run by DePuy Orthopaedics at 4 sites 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 6 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: finished, as of the sponsor's last update on 24 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites 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?

Yes. Results are posted in the registry (first posted 21 May 2012). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Mechanical Axis Alignment(Absolute Value Measured in Degrees)Using 51 Inch Long Leg Films (time frame: 12 weeks postoperatively (when subject has reached full knee extension)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 24 Oct 2023.

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