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Arthroplasty ComplicationsNCT03163888

Effects of Navigation Versus Conventional Total Knee Arthroplasty on the Levels of Inflammation Markers

An observational study of Arthroplasty Complications and Inflammatory Response, run by Chang Gung Memorial Hospital.

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

Total knee arthroplasty (TKA) is a well-established modality for the treatment of advanced knee osteoarthritis with high satisfaction rate. However, the traditional cutting jigs for distal femur cutting inevitably violates the medullary canal of femoral bone. Read more about this study

Who is it for?
Any age
What is being tested?
Navigation TKR
Type of treatment
Surgery or procedure
How many people
200 participants
Where
No sites listed yet
Study dates
1 Jan 2000to 1 May 2017
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Patients necessitating TKA surgery due to advanced degenerative osteoarthritis of the knee visited the outpatient department initially and were then scheduled for admission for TKA surgery. The patients were self-separated into two groups when they visited the outpatient department. The patients visiting professor CJ Wang would undergo conventional TKA, and those visiting Dr. JY Ko would undergo navigation TKA. Both senior authors had performed more than 1,000 TKAs using the conventional and navigation method respectively before recruiting the patients of our study.

Who may be able to join

  • end stage knee OA necessitating TKR surgeries

Who cannot join

  • autoimmune diseases, malignancies, previous knee surgery or post-traumatic arthritis

About this study

Official title: Effects of Computer Navigation Versus Conventional Total Knee Arthroplasty on the Levels of Inflammation Markers: A Prospective Comparative Study

Total knee arthroplasty (TKA) is a well-established modality for the treatment of advanced knee osteoarthritis with high satisfaction rate. However, the traditional cutting jigs for distal femur cutting inevitably violates the medullary canal of femoral bone. The process of intramedullary reaming for the insertion of distal femur cutting jigs stimulated the dissipation of marrow emboli that reported lead to increased risk of myocardial infarction or cardiac stress perioperatively. There are emerging refinements aiming to reduce the insult to the medullary canal of the distal femur as well as to improve the prosthetic alignment, such as navigation assisted TKA or robotic surgery.

In addition to better prosthetic alignment, computer-assisted navigation TKAs also mitigate perioperative blood loss and systemic emboli. The publication previously published by the investigators showed that navigation TKAs can lead to lesser extent of elevation of endothelial injury markers than the traditional TKAs. However, the detrimental effects of intramedullary reaming seem to be multi-dimensional and the whole picture has not been elucidated clearly at present.

Read more

Previous studies have shown that operative trauma can trigger marked immune responses. Operative procedures can simultaneously stimulate the pro-inflammatory and anti-inflammatory response, with 80% of the leucocyte transcriptome being affected. Most studies of hip or knee surgery found that operation-triggered immune reactions are associated with postoperative recovery, infection, and even mortality.

The navigation TKAs avoid the process of intra-medullary reaming, which is the mandatory part of conventional TKA for the distal femur cutting. The investigators hypothesize that the reaming process may exert substantial inflammatory response, which can be manifested by higher level of inflammatory markers in the serum and hemovac drainage samples obtained from the participants undergoing conventional TKAs.

Being tested
Navigation TKR

What participants receive

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

  • Navigation TKRProcedure or surgery

    Traditional over Conventional TKR

Study groups in NCT03163888
Study groupRoleWhat they receive
Navigation TKR groupTKR performed under computer navigation without violating distal femur bone marrow.
Receives: Procedure: Navigation TKR
Conventional TKR groupTKR performed under conventional distal femur cutting juts with violation of distal femur bone marrow.

What is being measured

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

  1. Concentration of IL-6(pg/mL)

    serum level change from baseline 24 hours after TKR , hemovac level 24 hours after TKR

    Measured: 24 hours after TKR

Secondary outcomes (2)
  1. Concentration of IL-10(pg/mL)

    serum level change from baseline 24 hours after TKR , hemovac level 24 hours after TKR

    Measured: 24 hours after TKR

  2. Concentration of TNF-alpha (pg/mL)

    serum level change from baseline 24 hours after TKR , hemovac level 24 hours after TKR

    Measured: 24 hours after TKR

Timeline

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

  1. First posted23 May 2017
  2. Study start1 Jan 2000
  3. Primary completion1 May 2017
  4. Study completion1 May 2017

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
Cohort
Time perspective
Prospective
Enrolment
200 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03163888
Sponsor's protocol ID
100-0038A3
Status last verified
May 2017
First submitted
11 May 2017
Last updated
23 May 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Arthroplasty Complications and Inflammatory Response, run by Chang Gung Memorial Hospital.

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 1 inclusion and 1 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 23 May 2017. Status can change between updates, so confirm with the study contact before making plans.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Concentration of IL-6(pg/mL) (time frame: 24 hours after TKR). 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 23 May 2017.

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