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TerminatedNCT01763359Updated May 4, 2020

Hip Strength and Nerve Palsy After the Modified Stoppa Approach to Acetabular Fracture Reduction and Fixation

An observational study in Acetabular Fracture and Pelvic Fracture, sponsored by University of Utah. Terminated at 1 site in United States. Open to participants aged 18 Years to 99 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-05-04.

Sponsored by University of Utah · Observational

Why this study was terminated
The original PI moved on from this facility as did other key personnel. The current PI decided to discontinue the study.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
43
Ages
18 Years to 99 Years
Sex
All
01

Study summary

The purpose of this prospective study is to compare hip adductor strength and obturator nerve palsy between acetabular fracture patients whose fracture was reduced and fixated using the modified Stoppa approach (subjects) and pelvic fracture patients (controls) using physical strength testing, radiographs, clinical assessment, and a validated functional outcome questionnaire. The investigators' research hypothesis is that there will be less strength and higher incidence of obturator nerve palsy in patients treated with the modified Stoppa approach (intervention) than in patients treated without the modified Stoppa approach (controls).

02

Conditions studied

  • Acetabular Fracture
  • Pelvic Fracture

Keywords

  • acetabular fracture
  • pelvic fracture
  • hip adductor strength
  • obturator nerve palsy
  • modified Stoppa approach
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 43 is below the median of 100 across 675 observational studies indexed under Fractures, Bone.

Browse Fractures, Bone studies →

Lead sponsor

University of Utah is the lead sponsor of 969 studies on the registry; 178 are open to participants now.

Of its 107 completed or terminated interventional studies of FDA-regulated products, 62 (58%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 99 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Pelvic fracture patients and patients treated for acetabular fractures with the modified Stoppa approach will be asked to consent to a voluntary study investigating physical function at their 2 week follow-up appointment.

Inclusion criteria

  • Inclusion criteria for the subject patient population under study consists of male and female adults, at least 18 years old, who had an acetabular fracture that was treated with the modified Stoppa approach.
  • Inclusion criteria for the control patient population under study consists of male and female adults, at least 18 years old, who had acetabular fractures with similar fracture patterns as the study group that were treated with any other approach than the Stoppa approach.

Exclusion criteria

Exclusion Criteria:

  • Exclusion criteria for the subject and control patient population consist of:
  • Patients who are non-ambulatory.
  • Patients less than 18 years of age.
  • Patients who do not speak English.
  • Patients who are unable to complete their follow-up in Utah.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
43 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Outpatient physical therapy strength testing will be used to assess hip adductor strength in all participants (subjects and controls).

    Time frame: 1 year follow-up after surgery

Secondary outcomes

  1. Radiographs and clinical assessment at follow-up appointments will be used to determine incidence of obturator nerve palsy in both groups (subjects and controls).

    Time frame: 1 year follow-up after surgery

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Study locations

1 site
  • University of Utah Orthopedics Center
    Salt Lake City, Utah 84121, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 4, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01763359
Lead sponsor
University of Utah
Responsible party
David Rothberg (M.D., University of Utah) — Principal investigator
First posted
Jan 8, 2013
Start date
Apr 2012
Primary completion
Feb 2020
Completion
Feb 2020
Last update
May 4, 2020

Study contacts

David Rothberg, MD
principal investigator · Orthopedic Surgery Operations

Oversight

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

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This study is terminated, as verified in Apr 2020. You cannot join it, but the record below documents what was studied.

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