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CompletedNCT02599441Updated Oct 25, 2019Results posted

Computed Tomography for Evaluating Supination-external Rotation Type Ankle Fractures

An observational study in Supination-external Rotation Ankle Fractures, sponsored by State University of New York at Buffalo. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-10-25.

Sponsored by State University of New York at Buffalo · Observational

Study type
Observational
Model
Case-only
Time perspective
Cross-sectional
Enrollment
9
Ages
18 Years and older
Sex
All
01

Study summary

To compare measures of ankle stability from an investigational cone beam computed tomography scanner to gravity stress X-ray in patients who have unstable supination-external rotation ankle fractures.

02

Conditions studied

  • Supination-external Rotation Ankle Fractures
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 enrollment of 9 is below the median of 100 across 675 observational studies indexed under Fractures, Bone.

Browse Fractures, Bone studies →

Lead sponsor

State University of New York at Buffalo is the lead sponsor of 287 studies on the registry; 65 are open to participants now.

Of its 19 completed or terminated interventional studies of FDA-regulated products, 15 (79%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients who have been diagnosed with unstable supination-external rotation type ankle fractures

Inclusion criteria

  • willing \& able to provide written informed consent
  • at least 18 years-old
  • have medial clear space measuring less than 5 mm with clinical suspicion of instability and would normally require a gravity stress X-ray

Exclusion criteria

Exclusion Criteria:

  • pregnant (females)
  • prisoners
  • open fracture
  • clinical signs of foot deformity
  • previous foot trauma or surgery on the affected foot
  • significant osteoarthritis or pre-existing ligamentous instability or pain in the affected foot
  • unable to stand in the weight bearing position during the CT scan
05

Study design

Observational model
Case-only
Time perspective
Cross-sectional
Enrollment
9 participants (actual)
Patient registry
No

Groups and cohorts

  • Ankle fracture cases
06

What researchers measure

Primary outcomes

  1. Medial Clear Space Distance in the Ankle Joint

    measured on weight bearing CBCT

    Time frame: Baseline- single-day study

Secondary outcomes

  1. Medial Clear Space on Gravity Stress Xray

    Time frame: Baseline

  2. Medial Clear Space on Standard Xray

    Time frame: Baseline

07

Results

Posted Oct 25, 2019

Participant flow

Participant flow — Overall Study
MilestoneAnkle Fracture Cases
Started9
Completed9
Not completed0

Outcome measures

PrimaryMedial Clear Space Distance in the Ankle Joint

measured on weight bearing CBCT

Time frame:
Baseline- single-day study
Reported as:
Mean · mm
Medial Clear Space Distance in the Ankle Joint
mmAnkle Fracture Cases
Medial Clear Space Distance in the Ankle Joint1.41 ± 0.41
SecondaryMedial Clear Space on Gravity Stress Xray
Time frame:
Baseline
Reported as:
Mean · mm
Medial Clear Space on Gravity Stress Xray
mmAnkle Fracture Cases
Medial Clear Space on Gravity Stress Xray5.82 ± 1.93
SecondaryMedial Clear Space on Standard Xray
Time frame:
Baseline
Reported as:
Mean · mm
Medial Clear Space on Standard Xray
mmAnkle Fracture Cases
Medial Clear Space on Standard Xray3.28 ± 1.63

Adverse events

Collected over not monitored beyond the study visit. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Ankle Fracture Cases0/9 (0%)0/9 (0%)0/9 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Ankle Fracture Cases
Mean50.3 (33 to 61)
Sex: Female, Male
Sex: Female, Male(Participants)Ankle Fracture Cases
Female3
Male6
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Ankle Fracture Cases
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American1
White2
More than one race0
Unknown or Not Reported6
08

Study locations

1 site
  • UBMD Orthopaedics & Sports Medicine
    Buffalo, New York 14226, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Nov 11, 2015

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 25, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02599441
Lead sponsor
State University of New York at Buffalo
Responsible party
John Marzo (Associate Professor of Clinical Orthopaedics, State University of New York at Buffalo) — Principal investigator
First posted
Nov 6, 2015
Start date
Feb 2016
Primary completion
Feb 2, 2017
Completion
Feb 2, 2017
Results posted
Oct 25, 2019
Last update
Oct 25, 2019

Study contacts

John Marzo, MD
principal investigator · UBMB Orthopaedics & Sports Medicine

Oversight

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

Not currently enrolling

This study is completed, as verified in Oct 2019. You cannot join it, but the record below documents what was studied.

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