OsteoarthritisNCT02686528
Postoperative Hip Precautions After Total Hip Arthroplasty Via the Posterior Approach: A Prospective Randomized Trial
A study testing Hip Precautions and No Hip Precautions in people with Osteoarthritis and Degenerative Joint Disease, run by Rush University Medical Center at 1 site in United States.
Trial summary
The purpose of this study is to determine if hip precautions, which are instructions that limit functional use of a hip replacement after surgery, affect the rate of dislocation in the first six weeks after primary total hip replacement surgery. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Osteoarthritis, Degenerative Joint Disease
- What is being tested?
- Hip Precautions and No Hip Precautions
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,133 participants
- Where
- 1 siteUnited States
- Study dates
- Jan 2016to 1 Nov 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients undergoing a primary total hip arthroplasty via the posterior approach by participating attending surgeons at this institution
- Index diagnosis of noninflammatory arthritis
- Patients must be able to understand and comply with study procedures
Who cannot join
- Allergy or intolerance to the study materials
- History of previous surgeries on the affected joint other than arthroscopy; i.e. revision THA or open surgeries
Trial locations and contacts
1 site in 1 country.
United States1 site
Rush University Medical Center
Chicago, Illinois, 60612
About this study
Official title: Are Postoperative Hip Precautions Necessary After a Total Hip Arthroplasty Via the Posterior Approach: A Prospective Randomized Trial
The purpose of this study is to determine if hip precautions, which are instructions that limit functional use of a hip replacement after surgery, affect the rate of dislocation in the first six weeks after primary total hip replacement surgery. The impact of hip precautions on a patient's return to activities of daily living and overall patient satisfaction will also be investigated. The overall cost effectiveness of hip precautions will be determined.
Read the detailed description
This study examines the necessity of postoperative hip precautions in patients after primary total hip arthroplasty via the posterior approach. Precautions are instructions that limit the functional use of the hip and are given for the first six weeks after surgery, with the goal of preventing an instability event resulting in dislocation. The hip precautions that will be investigated in this study are: no hip flexion past 90º, no crossing the legs, and no twisting at the waist.
- Conditions
- Osteoarthritis, Degenerative Joint Disease
- Being tested
- Hip Precautions, No Hip Precautions
- Keywords
- total hip arthroplasty, hip precautions, posterior approach
- Medical subject headings
- Osteoarthritis, Joint Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Hip PrecautionsOther
Hip precautions are functional limitations of the hip replacement prescribed to patients for the first six weeks after surgery and are no hip flexion past 90º, no crossing the legs, and no twisting at the waist.
No Hip PrecautionsOther
Patients will not be prescribed hip precautions in the first 6 weeks after surgery. The hip precautions that will no longer be prescribed are: no hip flexion past 90º, no crossing the legs, and no twisting at the waist.
| Study group | Role | What they receive |
|---|---|---|
| No Hip Precautions | Experimental | Patients will not be prescribed hip precautions in the first 6 weeks after surgery. The hip precautions that will no longer be prescribed are: no hip flexion past 90º, no crossing the legs, and no twisting at the waist. Receives: Other: No Hip Precautions |
| Hip Precautions | Active comparator | Patients will receive the following hip precautions: no hip flexion past 90º, no crossing the legs, and no twisting at the waist for the first six weeks after surgery. Receives: Other: Hip Precautions |
What is being measured
The primary outcome is the main question the study is designed to answer.
Dislocation
Incidence of dislocation of the total hip arthroplasty will be recorded for both treatment groups.
Measured: 6 weeks after surgery
Secondary outcomes (1)
Activities of Daily Living
The time from surgery to return to activities of daily living will be measured for both treatment groups. This includes return to activities of bathing, return to work, and return to driving.
Measured: 1 year after surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Feb 2016 (estimated)
- Study startJan 2016
- Primary completion21 Jul 2025
- Study completion1 Nov 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for OsteoarthritisStudies of the same condition, open and under way.
- More trials run by Rush University Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 1,133 participants (actual)
Sponsor and investigators
- Lead sponsor
- Rush University Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Omar Behery, Rush University Medical Center
- Investigators
- Omar Behery, MD, Principal investigator, Orthopedics Surgeon
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02686528
- Sponsor's protocol ID
- 13100906
- Status last verified
- Nov 2025
- First submitted
- 11 Jan 2016
- Last updated
- 14 Nov 2025
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 14 Nov 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Are Postoperative Hip Precautions Necessary After a Total Hip Arthroplasty Via the Posterior Approach: A Prospective Randomized Trial
- ClinicalTrials.gov ID
- NCT02686528
- Acronym / sponsor ID
- 13100906
- Conditions
- Osteoarthritis, Degenerative Joint Disease
- Keywords
- total hip arthroplasty, hip precautions, posterior approach
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,133 participants (actual)
- Lead sponsor
- Rush University Medical CenterUniversity, hospital or other
- Study start
- Jan 2016 (actual)
- Primary completion
- 21 Jul 2025 (actual)
- Study completion
- 1 Nov 2025 (actual)
- First posted
- 19 Feb 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to determine if hip precautions, which are instructions that limit functional use of a hip replacement after surgery, affect the rate of dislocation in the first six weeks after primary total hip replacement surgery. The impact of hip precautions on a patient's return to activities of daily living and overall patient satisfaction will also be investigated. The overall cost effectiveness of hip precautions will be determined.
Detailed description
This study examines the necessity of postoperative hip precautions in patients after primary total hip arthroplasty via the posterior approach. Precautions are instructions that limit the functional use of the hip and are given for the first six weeks after surgery, with the goal of preventing an instability event resulting in dislocation. The hip precautions that will be investigated in this study are: no hip flexion past 90º, no crossing the legs, and no twisting at the waist.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| No Hip Precautions | Experimental | Other: No Hip PrecautionsPatients will not be prescribed hip precautions in the first 6 weeks after surgery. The hip precautions that will no longer be prescribed are: no hip flexion past 90º, no crossing the legs, and no twisting at the waist. |
| Hip Precautions | Active comparator | Other: Hip PrecautionsPatients will receive the following hip precautions: no hip flexion past 90º, no crossing the legs, and no twisting at the waist for the first six weeks after surgery. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patients undergoing a primary total hip arthroplasty via the posterior approach by participating attending surgeons at this institution
- Index diagnosis of noninflammatory arthritis
- Patients must be able to understand and comply with study procedures
Key exclusion criteria (2 listed)
- Allergy or intolerance to the study materials
- History of previous surgeries on the affected joint other than arthroscopy; i.e. revision THA or open surgeries
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Hip PrecautionsHip precautions are functional limitations of the hip replacement prescribed to patients for the first six weeks after surgery and are no hip flexion past 90º, no crossing the legs, and no twisting at the waist. | Other | Hip Precautions |
| No Hip PrecautionsPatients will not be prescribed hip precautions in the first 6 weeks after surgery. The hip precautions that will no longer be prescribed are: no hip flexion past 90º, no crossing the legs, and no twisting at the waist. | Other | No Hip Precautions |
Primary outcome
Dislocation
Time frame: 6 weeks after surgery
Incidence of dislocation of the total hip arthroplasty will be recorded for both treatment groups.
1 secondary outcome
Activities of Daily Living
Time frame: 1 year after surgery
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Nov 2025.
- Individual participant dataSharing planned: No
Related trials for Osteoarthritis
Not yet recruiting
Holistic Healing for Knee Osteoarthritis
Knee Osteoarthritis (Knee OA)
Active, not recruiting
Effectiveness of Therapeutic Exercises on Spinopelvic Mobility
Osteoarthritis (OA) of the Hip
Recruiting
Effect of Anti-inflammatory Diet in Osteoarthritis
Osteoarthritis, Knee
Active, not recruitingPhase 2/3
Single vs Triple Hyaluronic Acid in Knee Osteoarthritis
Osteoarthritis, Knee
Not yet recruiting
The Feasibility of a Virtual/Home-based OA Treatment Program in Older Adults With OA and Multimorbidity
Osteoarthritis of the Knee
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Omar Behery, MD principal investigator
Orthopedics Surgeon
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Hip Precautions and No Hip Precautions in people with Osteoarthritis and Degenerative Joint Disease, run by Rush University Medical Center at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 14 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Dislocation (time frame: 6 weeks after surgery). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Nov 2025.