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OsteoarthritisNCT02381873

Determinants of Early Functional Outcome After Reconstructive Surgery

An observational study of Osteoarthritis, run by Queen Margaret University at 1 site in United Kingdom.

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 exploratory study will quantify and describe patient-reported and objective measures of sensorimotor, neuromuscular, psychophysiological and genotypical performance capabilities and levels of habitual physical activity prior to and around the time of surgery. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Osteoarthritis
How many people
36 participants
Where
1 siteUnited Kingdom
Study dates
Feb 2015to Mar 2016
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Males and females over the age of 18, diagnosed with severe osteoarthritis and awaiting primary total knee arthroplasty (TKA).

Who may be able to join

  • Males and females over the age of 18, diagnosed with severe osteoarthritis and awaiting primary TKA.

Who cannot join

  • Individuals electing primary knee arthroplasty surgery due to a knee joint disease other than osteoarthritis
  • Rheumatic disorder
  • Other orthopaedic conditions affecting lower body function
  • Neurological disorders

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Robert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust

    Oswestry, Shropshire, SY10 7AG

Other trials in United Kingdom

About this study

Official title: Exploratory Study of Determinants of Early Functional Outcome Following Reconstructive Knee Surgery

This exploratory study will quantify and describe patient-reported and objective measures of sensorimotor, neuromuscular, psychophysiological and genotypical performance capabilities and levels of habitual physical activity prior to and around the time of surgery.

Read the detailed description

Despite the positive outcomes of total knee arthroplasty (TKA) surgery on symptoms such as pain, perceived function and health-related quality of life (QoL) current research highlights the persistent deleterious effects of retained aberrant neuromuscular alterations on physical function, which may also directly impact falls risk. Importantly, observed increases in neuromuscular deficits that occur prior to surgery track through into the post-operative stage with functional limitations that are sustained and which can persist at least one year after surgery. Clearly, it is crucial to strive to identify modifiable factors that might successfully ameliorate this pathophysiological process prior to surgery, reduce post surgical impairments and which also accelerate recovery.

Among other determinants that might contribute towards understanding of optimal functional recovery following reconstructive knee surgery is the influence of genes. The evaluation of specific genotypes and subsequent protein expression might provide further insight into the extent of genetic influence. For example, it is not yet known whether patients with specific genotypes experience an accelerated recovery. Currently, there is a paucity of research on the influence of gene-environment interactions on an individual's response to physical conditioning.

The proposed research will be an exploratory study, involving four repeated-measures assessments from 10 weeks prior to surgery to 12 weeks after surgery. This study offers a novel evaluation of the overall patterning of changes and will quantify and describe patient-reported and objective measures of sensorimotor, neuromuscular, psychophysiological performance capabilities, genotypes and levels of habitual physical activity.

Conditions
Osteoarthritis
Keywords
Arthroplasty, Replacement, Knee, Osteoarthritis
Medical subject headings
Osteoarthritis

What is being measured

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

  1. Knee Injury and Osteoarthritis Score (KOOS)

    Self reported questionnaire which evaluates pain, other symptoms, function in activity of daily living, function in sport and recreation (Sport/Rec), and knee related QoL.

    Measured: from 10 weeks prior to surgery to 12 weeks after surgery

  2. Oxford knee score (OKS)

    Self reported questionnaire which evaluates pain and function.

    Measured: from 10 weeks prior to surgery to 12 weeks after surgery

  3. Postural stability as assesed by force plate

    Postural stability will be assessed using a stable force plate.

    Measured: from 10 weeks prior to surgery to 12 weeks after surgery

Secondary outcomes (6)
  1. Neuromuscular performance capability

    Dynamometer and electromyography measurements will be used to evaluate neuromuscular performance capability.

    Measured: from 10 weeks prior to surgery to 12 weeks after surgery

  2. Sensorimotor performance capability

    Dynamometer and electromyography measurements will be used to evaluate sensorimotor performance capability.

    Measured: from 10 weeks prior to surgery to 12 weeks after surgery

  3. International Physical Activity Questionnaire (IPAQ).

    Self-reported physical activity will be monitored using IPAQ.

    Measured: from 10 weeks prior to surgery to 12 weeks after surgery

  4. Knee circumference

    Measured: from 10 weeks prior to surgery to 12 weeks after surgery

  5. DNA genotypes and subsequent protein expression

    Measured: on the day of surgery and 12 weeks following operation

  6. Psychophysiological response

    Self reported. Psychophysiological response will be assessed using Category-Ratio Scale (CR-10); performance profile; short form (SF)-36.

    Measured: from 10 weeks prior to surgery to 12 weeks after surgery

Timeline

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

  1. First posted6 Mar 2015 (estimated)
  2. Study startFeb 2015
  3. Primary completionMar 2016
  4. Study completionMar 2016

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
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02381873
Sponsor's protocol ID
14/NE/1216
Status last verified
Mar 2017
First submitted
28 Feb 2015
Last updated
7 Mar 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Osteoarthritis, run by Queen Margaret University at 1 site in United Kingdom.

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 4 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 7 Mar 2017. 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 Kingdom. 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 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?

Knee Injury and Osteoarthritis Score (KOOS) (time frame: from 10 weeks prior to surgery to 12 weeks after surgery). 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?
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 7 Mar 2017.

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