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CompletedNCT00551668Updated Oct 31, 2007

A Prospective, Randomized Study of Operative and Nonoperative Treatment for Primary Traumatic Patellar Dislocation

An interventional study of proximal patellar surgery and Nonoperative in Patellar Dislocation, sponsored by Finnish Defense Forces. Completed. Open to participants aged 19 Years and older. Per ClinicalTrials.gov, last updated 2007-10-31.

Sponsored by Finnish Defense Forces · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
19 Years and older
Sex
All
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Study summary

The objective of this prospective, randomized cohort study was to evaluate the clinical results between operative and nonoperative treatment of primary patellar dislocation.

Read the detailed description

There is no consensus about management of acute traumatic primary patellar dislocations in young physically active adults. Acute lateral patellar dislocation is a relatively common injury among young adults. Proper treatment for this condition has been researched for decades. However, there is a lack of prospective randomized studies to evaluate the different treatment options for traumatic primary patellar dislocations. Therefore a prospective, randomized study was designed with the aim to compare the outcome of operative versus nonoperative treatment of primary traumatic patellar dislocations in young adults.

02

Conditions studied

  • Patellar Dislocation

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03

In context

Patellar Dislocation

41 studies on the registry are indexed under Patellar Dislocation; 9 are open to participants now.

This study's enrollment of 40 is below the median of 50 across 22 interventional studies indexed under Patellar Dislocation.

Browse Patellar Dislocation studies →

Lead sponsor

Finnish Defense Forces is the lead sponsor of 4 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
19 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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

  • An acute primary traumatic patellar dislocation

Exclusion criteria

Exclusion Criteria:

  • Previous dislocation or subluxation of the patella
  • Pre-existing ipsilateral or contralateral knee pathology
  • Previous knee trauma or patellar fracture.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
40 participants (actual)

Study arms

  • Experimental
    1

    Operative

    Procedure: proximal patellar surgery

  • Experimental
    2

    Nonoperative

    Procedure: Nonoperative

Interventions

  • Procedureproximal patellar surgery

    Initial proximal patellar surgery

  • ProcedureNonoperative

    Nonoperative without surgery

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What researchers measure

Primary outcomes

  1. Number of redislocations

    Time frame: 7 years

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Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 31, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00551668
Lead sponsor
Finnish Defense Forces
First posted
Oct 31, 2007
Start date
Jan 1998
Completion
Dec 2000
Last update
Oct 31, 2007

Study contacts

Harri Pihlajamäki, M.D., Ph.D.
study director · Centre for Military Medicine, Lahti, Finland

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2007. You cannot join it, but the record below documents what was studied.

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