ClinicalTrials.gg
CompletedNCT03233620Updated Jul 28, 2017

Effectiveness of Contemporary Knee Arthroplasty in Working-age Patients

An interventional study of Knee arthroplasty in Knee Osteoarthritis, sponsored by Coxa, Hospital for Joint Replacement. Completed. Open to participants aged Up to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-07-28.

Sponsored by Coxa, Hospital for Joint Replacement · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 5 years 4 months after the study started (first participant enrolled Mar 2012, registered Jul 2017).

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Phase
Not applicable
Study type
Interventional
Enrollment
250
Allocation
Not applicable
Ages
Up to 65 Years
Sex
All
01

Study summary

The aim of our study was to assess the effectiveness of contemporary knee arthroplasty in working-age patients (\< 65 years) by conducting a prospective cohort study with 2-year follow up. Outcomes were measured comprehensively using various patient-reported outcome measures (PROMs) to provide information on the effect of knee arthroplasty on pain, satisfaction, physical activity, activities of daily living, and quality of life.

02

Conditions studied

  • Knee Osteoarthritis

Keywords

  • knee arthroplasty
  • working-age
  • patient related outcome measures
03

In context

Osteoarthritis, Knee

3,294 studies on the registry are indexed under Osteoarthritis, Knee; 623 are open to participants now.

This study's enrollment of 250 is above the median of 68 across 2,716 interventional studies indexed under Osteoarthritis, Knee.

Browse Osteoarthritis, Knee studies →

Lead sponsor

Coxa, Hospital for Joint Replacement is the lead sponsor of 8 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 65 or less and
  • Scheduled for either TKA or unicondylar knee arthroplasty (UKA)

Exclusion criteria

Exclusion Criteria:

  • rheumatoid arthritis or other inflammatory diseases
  • unwilling to provide
  • physical, mental, or neurological conditions that could comprise the patient´s ability and compliance with postoperative rehabilitation and follow-up (e.g., drug or alcohol abuse, serious mental illness, general neurological conditions such as Parkinson's disease, multiple sclerosis (MS), etc.)
  • known sensitivity to materials in the devices.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
250 participants (actual)

Study arms

  • Other
    working age patients

    Prospective cohort of 250 patients.

    Other: Knee arthroplasty

Interventions

  • OtherKnee arthroplasty

    Effectiveness of knee arthroplasty surgery.

06

What researchers measure

Primary outcomes

  1. Effectiveness of contemporary knee arthroplasty in working-age patients

    PROMs

    Time frame: 2 years

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Leppanen S, Niemelainen M, Huhtala H, Eskelinen A. Mild knee osteoarthritis predicts dissatisfaction after total knee arthroplasty: a prospective study of 186 patients aged 65 years or less with 2-year follow-up. BMC Musculoskelet Disord. 2021 Aug 5;22(1):657. doi: 10.1186/s12891-021-04543-8. PubMed 34353317 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Mar 2012 to primary completion in Oct 2014, 31 months.

Of 1,111 non-industry interventional studies with no phase under Osteoarthritis, Knee, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 36. This study's 31 months is above that.

Counting every sponsor, half of 1,251 studies reached it within 18 months; a quarter within 8 and three quarters within 36.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 26, 2017
First posted
Jul 28, 2017
StartActual
Mar 1, 2012
Primary completionActual
Oct 30, 2014
CompletionActual
Nov 1, 2016
Last update
Jul 28, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 28, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03233620
Lead sponsor
Coxa, Hospital for Joint Replacement
Responsible party
Sponsor
First posted
Jul 28, 2017
Start date
Mar 1, 2012
Primary completion
Oct 30, 2014
Completion
Nov 1, 2016
Last update
Jul 28, 2017

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2017. You cannot join it, but the record below documents what was studied.

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