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Not yet recruitingNCT04724811Updated Mar 6, 2024

Weight-bearing of Surgically Treated Acetabular Fractures.

An interventional study of Open reduction and internal fixation (ORIF) in Acetabular Fracture, sponsored by Hospital District of Helsinki and Uusimaa. Not yet recruiting at 1 site in Finland. Open to participants aged 60 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-03-06.

Sponsored by Hospital District of Helsinki and Uusimaa · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
60 Years and older
Sex
All
01

Study summary

The purpose of this study is to determine whether patients with operatively treated acetabular fractures benefit from early weight-bearing as tolerated. The study compares two groups ( n = 25 each), which are randomised into either weight-bearing as tolerated or touch-down weight-bearing for 6-8 weeks postoperatively.

Both study groups are stratified according to

  • Type of fracture (anterior approach vs anterior + additional posterior approach)
  • Dislocated dome vs non-dislocated/ non existing separate dome fragment

Patients, who are eligible to participate in the trial but choose not to participate in randomisation are asked to enrol in a prospective cohort follow-up cohort. This is to examine a potential participation bias in the RCT groups. These patients will not be counted into the target amount of 50 RCT patients.

Read the detailed description

For the past 20 years, the established treatment of dislocated acetabular fractures has been surgical reduction and stable osteosynthesis. Good long-term results have been reported in these patients. At present, the mobilisation of these patients after surgery is generally restricted for several weeks ranging from 6-12 weeks touch-down- or non-weight-bearing with no uniform protocol. However there is no scientific evidence for limiting post operative weight-bearing. Accordingly the need of studies on weight-bearing surrounding periarticular fractures has been advocated.

Acetabular fractures in the elderly population are becoming more common and pose significant challenges for treatment including postoperative rehabilitation. Our aim is to investigate if patients benefit of a more liberal weight-bearing regime postoperatively. The primary outcome is measured at 1 year, secondary outcomes are followed up to 10 years postoperatively

02

Conditions studied

  • Acetabular Fracture

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Keywords

  • Acetabulum
  • Periarticular fracture
  • Weight-bearing
03

In context

Fractures, Bone

2,261 studies on the registry are indexed under Fractures, Bone; 325 are open to participants now.

This study's planned enrollment of 50 is below the median of 69 across 1,482 interventional studies indexed under Fractures, Bone.

Browse Fractures, Bone studies →

Lead sponsor

Hospital District of Helsinki and Uusimaa is the lead sponsor of 14 studies on the registry; 4 are open to participants now.

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

04

Who can participate

Ages eligible
60 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Unilateral dislocated acetabulum fracture (displacement of over 2mm in preoperative CT scan)
  • The osteosynthesis is performed during 21 days after initial trauma
  • The patient is willing to participate in the follow-up

Exclusion criteria

Exclusion Criteria:

  • Unwillingness to participate in randomisation
  • Bilateral fracture
  • Letournel \& Judet type Both column or Posterior column and wall fractures
  • Any other injury that prevents the patient from partial weight bearing
  • Open fracture of the acetabulum
  • Pathologic fracture (fragility fractures are not an exclusion criteria)
  • Prior functional disability in the pelvis or lower extremity
  • Non-Compliance due to dementia or other mental disability
  • Prior daily pain medication due to hip-pain
  • Unwillingness to accept one of the two mobilisation protocols
  • Prior hip replacement on injured side
  • BMI > 40
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Care provider, Investigator)
Enrollment
50 participants (estimated)

Study arms

  • Experimental
    Weight-bearing as tolerated

    Patients are instructed to mobilise the hip and weight-bear as tolerated

    Procedure: Open reduction and internal fixation (ORIF)

  • Active comparator
    Touch-down weight-bearing

    Patients are instructed to mobilise the hip. Touch-down weight-bearing for 6-8 weeks

    Procedure: Open reduction and internal fixation (ORIF)

Interventions

  • ProcedureOpen reduction and internal fixation (ORIF)

    Approaches used: * Intrapelvic approach +/- iliac window * Kocher-Langenbeck approach

06

What researchers measure

Primary outcomes

  1. mHHS

    Modified Harris Hip Score, Scale 0-100, higher scores mean better outcome

    Time frame: 1 year

  2. NRS

    Pain during gate, Numerical Rating Scale, Scale 0-10 0=no pain, 10=worst pain

    Time frame: 1 year

Secondary outcomes

  1. mHHS

    Modified Harris Hip Score, Scale 0-100, higher scores mean better outcome

    Time frame: 0 weeks, 6 weeks, 12 weeks, 6 months, 2 years, 5 years, 10 years

  2. NRS

    Pain at rest and during gate (2 scores), Numerical Rating Scale, Scale 0-10 0=no pain, 10=worst pain

    Time frame: 0 weeks, 6 weeks, 12 weeks, 6 months, 1 year, 2 years, 5 years, 10 years

  3. WOMAC

    Western Ontario and McMaster Universities Osteoarthritis Index, Scale 0-96, higher scores mean better outcome

    Time frame: 0 weeks, 1 year, 2 years, 5 years, 10 years

  4. RAND36

    Patient reported quality of life, Scale 0-100, higher scores mean better outcome

    Time frame: 0 weeks, 1 Year, 2 years, 5 years, 10 years

Other outcomes

  1. Complications

    Any complications during treatment are documented

    Time frame: At any point of time during treatment

  2. Total hip replacement

    Conversion to total hip replacement

    Time frame: During 10 years postoperatively

  3. Reduction of the articular surface after surgery

    The reduction is assessed with a postoperative CT scan

    Time frame: Postoperatively

07

Study locations

1 site
  • Helsinki University Hospital
    Helsinki, Uusimaa 00029 HUS, Finland
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 6, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04724811
Lead sponsor
Hospital District of Helsinki and Uusimaa
Responsible party
Kristian Seppänen (Principal Investigator, Hospital District of Helsinki and Uusimaa) — Principal investigator
First posted
Jan 26, 2021
Start date
May 2024 (estimated)
Primary completion
Dec 2026 (estimated)
Completion
Dec 2027 (estimated)
Last update
Mar 6, 2024

Study contacts

Kristian Seppänen, MD
Contact
kristian.seppanen@hus.fi
094711
Jan Lindahl, MD, PhD
Contact
jan.lindahl@hus.fi
094711
Jan Lindahl, MD, PhD
study chair · Helsinki University Central Hospital
Kristian Seppänen, MD
principal investigator · Helsinki University Central Hospital

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 not yet recruiting, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

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