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CompletedNCT03392285UNFNFUpdated Jan 5, 2018

Undisplaced Femoral Neck Fractures

An observational study in Hip Fractures, Femoral Neck Fractures and Undisplaced Fracture, sponsored by Sundsvall Hospital. Completed. Open to participants aged 65 Years and older. Per ClinicalTrials.gov, last updated 2018-01-05.

Primary conditionFemoral Neck FracturesRegistry: Hip FracturesReclassifiedWhy we changed it
Registry
Hip Fractures — the first condition term the registry derived for this study.
ClinicalTrials.gg
Femoral Neck Fractures
Why
  1. The study's listed conditions name Femoral Neck Fractures, a narrower term within Hip Fractures.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Sundsvall Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
235
Ages
65 Years and older
Sex
All
01

Study summary

Purpose The purpose of this study is to compare the clinical outcome and the rate of reoperations in a cohort of patients with undisplaced femoral neck fractures treated with internal fixation and patients with displaced femoral neck fractures treated with hip arthroplasty.

Methods In a consecutive series of patients we compared the results of internal fixation for undisplaced femoral neck fractures with those of hip arthroplasty for displaced fractures (control group) of elderly patients. Risk of reoperation and patient reported hip function assessed with Harris hip score and WOMAC were used as outcome measurements.

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Conditions studied

  • Hip Fractures
  • Femoral Neck Fractures
  • Undisplaced Fracture
  • Internal Fixation; Complications
  • Arthroplasty Complications

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In context

Femoral Neck Fractures Reclassified

207 studies on the registry are indexed under Femoral Neck Fractures; 40 are open to participants now.

This study's enrollment of 235 is above the median of 137 across 60 observational studies indexed under Femoral Neck Fractures.

Browse Femoral Neck Fractures studies →

Lead sponsor

Sundsvall Hospital is the lead sponsor of 22 studies on the registry; none are open to participants now.

Compared within Femoral Neck Fractures, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Hip Fractures. The counts are of registry records indexed under each term, refreshed daily. How we classify →

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Who can participate

Ages eligible
65 Years and older
Sexes eligible
All
Sampling method
Non-probability sample

Study population

To evaluate the potential benefit of surgery with arthroplasty. All patients treated at Sundsvall hospital, Sweden for a displaced femoral neck fracture treated with hip arthroplasty or a undisplaced femoral neck fracture treated with internal fixation were included in a prospective cohort study.

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

Above 65 years old Displaced femoral neck fracture treated with hip arthroplasty Undisplaced femoral neck fracture treated with internal fixation

Exclusion criteria

Exclusion Criteria:

  • Pathologic fracture
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
235 participants (actual)
Patient registry
No

Groups and cohorts

  • Internal fixation

    Patients above 65years old with an undisplaced femoral neck fractures treated with primary internal fixation with screws.

    Device: Internal fixation or hip arthroplasty

  • Hip arthroplasty

    Patients above 65years old with a displaced femoral neck fractures treated with primary hip arthroplasty.

    Device: Internal fixation or hip arthroplasty

Interventions

  • DeviceInternal fixation or hip arthroplasty

    Patients treated according to the routine at the orthopedic department with screw fixation of an undisplayed femoral neck fracture or hip arthroplasty for a displaced femoral neck fracture.

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What researchers measure

Primary outcomes

  1. Reoperation

    Reapportions are recorded and compared between the groups.

    Time frame: 4 years

Secondary outcomes

  1. Harris hip score

    Patient reported outcome (0-100 points) for evaluation of hip function.

    Time frame: 1 year postoperatively

  2. WOMAC

    Patient reported outcome (0-96 points) for evaluation of hip function.

    Time frame: 1 year postoperatively

  3. Pain in the operated hip

    Estimated with pain numeric rating scale (PNRS). Grading 0-10.

    Time frame: 1 year postoperatively

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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Rogmark C, Flensburg L, Fredin H. Undisplaced femoral neck fractures--no problems? A consecutive study of 224 patients treated with internal fixation. Injury. 2009 Mar;40(3):274-6. doi: 10.1016/j.injury.2008.05.023. Epub 2008 Dec 13. PubMed 19070851 ↗
  • Gjertsen JE, Dybvik E, Furnes O, Fevang JM, Havelin LI, Matre K, Engesaeter LB. Improved outcome after hip fracture surgery in Norway. Acta Orthop. 2017 Oct;88(5):505-511. doi: 10.1080/17453674.2017.1344456. Epub 2017 Jul 6. PubMed 28681677 ↗
  • Han SK, Song HS, Kim R, Kang SH. Clinical results of treatment of garden type 1 and 2 femoral neck fractures in patients over 70-year old. Eur J Trauma Emerg Surg. 2016 Apr;42(2):191-6. doi: 10.1007/s00068-015-0528-6. Epub 2015 Apr 18. PubMed 26038046 ↗
  • Chen WC, Yu SW, Tseng IC, Su JY, Tu YK, Chen WJ. Treatment of undisplaced femoral neck fractures in the elderly. J Trauma. 2005 May;58(5):1035-9; discussion 1039. doi: 10.1097/01.ta.0000169292.83048.17. PubMed 15920421 ↗
  • Gjertsen JE, Fevang JM, Matre K, Vinje T, Engesaeter LB. Clinical outcome after undisplaced femoral neck fractures. Acta Orthop. 2011 Jun;82(3):268-74. doi: 10.3109/17453674.2011.588857. PubMed 21619501 ↗
  • Mukka S, Sjoholm P, Aziz A, Eisler T, Kadum B, Krupic F, Morberg P, Sayed-Noor A. A cohort study comparing internal fixation for undisplaced versus hip arthroplasty for displaced femoral neck fracture in the elderly: a pilot study for a clinical trial. Pilot Feasibility Stud. 2020 Jul 11;6:98. doi: 10.1186/s40814-020-00642-w. eCollection 2020. PubMed 32670600 ↗

Individual participant data

Plan to share: No — If researchers requests data - anonymous data will be shared.

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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 Jan 2013 to primary completion in May 2015, 28 months.

Of 20 observational studies under Femoral Neck Fractures, half reached primary completion within 40 months of starting (the median), counting those still running; a quarter within 28 and three quarters within 120. This study's 28 months is below that.

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

Registered
Jan 1, 2018
First posted
Jan 5, 2018
StartActual
Jan 1, 2013
Primary completionActual
May 31, 2015
CompletionActual
Dec 31, 2017
Last update
Jan 5, 2018
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 Jan 5, 2018, 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
NCT03392285
Lead sponsor
Sundsvall Hospital
Responsible party
Sponsor
First posted
Jan 5, 2018
Start date
Jan 1, 2013
Primary completion
May 31, 2015
Completion
Dec 31, 2017
Last update
Jan 5, 2018

Oversight

Data monitoring committee
No
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 Jan 2018. You cannot join it, but the record below documents what was studied.

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