Femoral Neck FracturesREGAINNCT00555945
Re-Evaluation of GAmma3 Intramedullary Nails in Hip Fracture (REGAIN)
A study testing Gamma3 intramedullary nail (Stryker) and Sliding Hip Screw in people with Femoral Neck Fractures and Intertrochanteric Fracture, run by Stryker Trauma and Extremities at 5 sites in 3 countries.
Trial summary
The purpose of this study is to assess the impact of Gamma3 intramedullary nails versus sliding hip screws on rate of revision surgery in individuals with inter-trochanteric fractures. Secondary outcomes include fracture healing rates, fracture related complications, and health-related quality of life. Read more about this study
- Who is it for?
- Ages 50 years and older
- Conditions the study is for
- Femoral Neck Fractures, Intertrochanteric Fracture
- What is being tested?
- Gamma3 intramedullary nail (Stryker) and Sliding Hip Screw
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 90 participants
- Where
- 5 sitesin 3 countries
- Study dates
- May 2007to Jun 2009
- 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 50 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Adult men or women aged 50 years and older (with no upper age limit).
- An trochanteric fracture (stable or unstable) confirmed with anterior and posterior lateral hip radiographs, computed tomography, or magnetic resonance imaging (MRI).
- Operative treatment within 3 days (i.e., 72 hours) after the trauma.
- Patient was ambulatory prior to fracture, though they may have used an aid such as a cane or a walker.
- Anticipated medical optimization of the patient for operative fixation of the proximal femur.
- Provision of informed consent by patient or proxy.
- Low energy fracture (defined as a fall from standing height).
- No other major trauma.
Who cannot join
- Associated major injuries of the lower extremity (i.e., ipsilateral or contralateral fractures of the foot, ankle, tibia, fibula, knee, or femur; dislocations of the ankle, knee, or hip; or femoral head defects or fracture).
- Retained hardware around the affected hip.
- Infection around the hip (i.e., soft tissue or bone).
- Patients with disorders of bone metabolism other than osteoporosis (i.e., Paget's disease, renal osteodystrophy, or osteomalacia).
- Moderate or severe cognitively impaired patients (i.e., Six Item Screener with three or more errors).
- Patients with Parkinson's disease (or dementia) severe enough to increase the likelihood of falling or severe enough to compromise rehabilitation.
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- Likely problems, in the judgment of the investigators, with maintaining follow-up. We will, for example, exclude patients with no fixed address, those who report a plan to move out of town in the next year, or intellectually challenged patients without adequate family support.
- If the attending surgeon believes that a patient should be excluded from REGAIN because the patient is enrolled in another ongoing drug or surgical intervention trial.
- If the attending surgeon believes that there is another reason to exclude this patient from REGAIN. This reason will be documented on the case report forms.
Trial locations and contacts
5 sites in 3 countries.
5 sites in 3 countries
Canada3 sites
Hamilton General Hospital
Hamilton, Ontario, L8L 2X2
St. Joseph's Hospital
Hamilton, Ontario, L8N4A6
St. Michael's Hospital
Toronto, Ontario, M5C1R6
About this study
Official title: Re-Evaluation of GAmma3 Intramedullary Nails in Hip Fracture: A Multi-Centre Randomized Controlled Trial of Gamma3 Intramedullary Nails Versus Sliding Hip Screws in the Management of Intertrochanteric Fractures of the Hip
The purpose of this study is to assess the impact of Gamma3 intramedullary nails versus sliding hip screws on rate of revision surgery in individuals with inter-trochanteric fractures. Secondary outcomes include fracture healing rates, fracture related complications, and health-related quality of life.
Read the detailed description
Hip fractures are becoming a more prevalent issue worldwide, leading to profound morbidity, and in some cases, mortality. Currently the most common method of surgical treatment includes the use of a sliding hip screw over a Gamma intramedullary nail, but there is conflicting evidence regarding which device has a lower revision of surgery rate and complication rate. The newest generation of Gamma3 nails have strong rationale suggesting significantly decreased rates of femoral shaft fractures and improved function. The improvements in implant design of the Gamma3 nail provide compelling rationale for the conduct of a large, definitive trial, and therefore a pilot study is being conducted to confirm or refute our ability to recruit patients and assess the consistency between site estimates and actual recruitment, determine the degree to which site investigators can adhere to trial protocol, confirm or refute our anticipated ability to achieve close to 100% follow- up, assess our ability to maintain 100% data quality, field test our case report forms for clarity and appropriateness, and to determine whether we can successfully manage the logistics of coordinating trial activities across multiple sites.
This trial is a pilot, multi-center, concealed randomized controlled trial. Surgeons will use one of the two surgical strategies in patients who have sustained a trochanteric fracture; the Gamma3 intramedullary nail or the sliding hip screw. Clinical assessments will occur at the time of hospital admission, 1 week, 3 months, 6 months, and 12 months after surgery.
- Conditions
- Femoral Neck Fractures, Intertrochanteric Fracture
- Being tested
- Gamma3 intramedullary nail (Stryker), Sliding Hip Screw
- Keywords
- Intertrochanteric fracture, Gamma3 intramedullary nail, Sliding hip screw
- Medical subject headings
- Femoral Neck Fractures, Hip Fractures
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Gamma3 intramedullary nail (Stryker)Procedure or surgery
Also called Gamma Nail, Gamma3 Nail, Intramedullary Nail (IM Nail)
The Gamma3 nail is cannulated for Guide-Wire-controlled insertion, and features a conical tip for optimal alignment with the inner part of the cortical bone. A single distal Locking Screw is provided to stabilize the nail in the medullary canal and to help to prevent rotation in complex fractures.
Sliding Hip ScrewProcedure or surgery
Also called Sliding Hip Screw (SHS), Dynamic Hip Screw (DHS), Compression Screw and Side Plate
The sliding hip screw is a single larger diameter partially threaded screw, which is affixed to the proximal femur with a side plate (with a minimum of two holes and a maximum of four holes) and no supplemental fixation.
| Study group | Role | What they receive |
|---|---|---|
| 1 | Active comparator | Gamma3 intramedullary nail Receives: Procedure: Gamma3 intramedullary nail (Stryker) |
| 2 | Active comparator | Sliding hip screw Receives: Procedure: Sliding Hip Screw |
What is being measured
The primary outcome is the main question the study is designed to answer.
Rates of revision surgery
Revision surgery is classified as any unplanned surgery done to promote fracture healing, relieve pain, treat infection, or improve function include the following: 1) implant removal prior to fracture healing (to achieve union); 2) revision surgery with another internal fixation implant; 3) revision surgery to arthroplasty; 4) incision and drainage for deep infection at the bone implant interface; 5) correction of malunion; and 6) repair of a femoral shaft fracture.
Measured: 1 year
Secondary outcomes (3)
Health Related Quality of Life
HRQL will be measured using using self-administered and interview-administered questionnaires. Functional outcome questionnaires will include a generic health status measurement instrument (SF-12v2), a hip function and pain questionnaire (WOMAC), a generic utility measure (EQ-5D), the Merle d'Aubigne (MDA) pain and function score, and the Parker mobility score.
Measured: Up to12 months
Fracture healing rates
A fracture is to be considered healed when there is obliteration of the fracture lines by newly formed bone along the cortices and within the trabecular bone on anteroposterior and lateral (or oblique) radiographs.
Measured: Up to12 months
Complications
Complications include mortality, femoral shaft fracture, avascular necrosis, nonunion, malunion (shortening, varus deformity, valgus deformity and rotational malunion), implant breakage or failure, and infection (i.e., superficial and deep).
Measured: Up to12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Nov 2007 (estimated)
- Study startMay 2007
- Primary completionJun 2009
- Study completionJun 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Femoral Neck FracturesStudies of the same condition, open and under way.
- More trials run by Stryker Trauma and ExtremitiesThe 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
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 90 participants (actual)
Sponsor and investigators
- Lead sponsor
- Stryker Trauma and Extremities
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Stryker Osteosynthesis, Global Research Solutions
- Investigators
- Mohit Bhandari, MD FRCSC MSc, Principal investigator, McMaster University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00555945
- Sponsor's protocol ID
- 06042011_REGAIN_v1.0
- Acronym
- REGAIN
- Status last verified
- Jun 2011
- First submitted
- 7 Nov 2007
- Last updated
- 27 Jun 2011
- Results posted
- No
- Data monitoring committee
- No
Publications
Parker MJ, Pryor GA. Gamma versus DHS nailing for extracapsular femoral fractures. Meta-analysis of ten randomised trials. Int Orthop. 1996;20(3):163-8. doi: 10.1007/s002640050055.
PubMed 8832319Ahrengart L, Tornkvist H, Fornander P, Thorngren KG, Pasanen L, Wahlstrom P, Honkonen S, Lindgren U. A randomized study of the compression hip screw and Gamma nail in 426 fractures. Clin Orthop Relat Res. 2002 Aug;(401):209-22. doi: 10.1097/00003086-200208000-00024.
PubMed 12151898Harrington P, Nihal A, Singhania AK, Howell FR. Intramedullary hip screw versus sliding hip screw for unstable intertrochanteric femoral fractures in the elderly. Injury. 2002 Jan;33(1):23-8. doi: 10.1016/s0020-1383(01)00106-1.
PubMed 11879828
Study at a glance
From the registry record, last updated by the sponsor on 27 Jun 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Re-Evaluation of GAmma3 Intramedullary Nails in Hip Fracture: A Multi-Centre Randomized Controlled Trial of Gamma3 Intramedullary Nails Versus Sliding Hip Screws in the Management of Intertrochanteric Fractures of the Hip
- ClinicalTrials.gov ID
- NCT00555945
- Acronym / sponsor ID
- REGAIN / 06042011_REGAIN_v1.0
- Conditions
- Femoral Neck Fractures, Intertrochanteric Fracture
- Keywords
- Intertrochanteric fracture, Gamma3 intramedullary nail, Sliding hip screw
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 90 participants (actual)
- Lead sponsor
- Stryker Trauma and ExtremitiesIndustry (pharma, biotech, devices)
- Collaborators
- Stryker Osteosynthesis, Global Research Solutions
- Study start
- May 2007
- Primary completion
- Jun 2009 (actual)
- Study completion
- Jun 2009 (actual)
- First posted
- 9 Nov 2007 (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 assess the impact of Gamma3 intramedullary nails versus sliding hip screws on rate of revision surgery in individuals with inter-trochanteric fractures. Secondary outcomes include fracture healing rates, fracture related complications, and health-related quality of life.
Detailed description
Hip fractures are becoming a more prevalent issue worldwide, leading to profound morbidity, and in some cases, mortality. Currently the most common method of surgical treatment includes the use of a sliding hip screw over a Gamma intramedullary nail, but there is conflicting evidence regarding which device has a lower revision of surgery rate and complication rate. The newest generation of Gamma3 nails have strong rationale suggesting significantly decreased rates of femoral shaft fractures and improved function. The improvements in implant design of the Gamma3 nail provide compelling rationale for the conduct of a large, definitive trial, and therefore a pilot study is being conducted to confirm or refute our ability to recruit patients and assess the consistency between site estimates and actual recruitment, determine the degree to which site investigators can adhere to trial protocol, confirm or refute our anticipated ability to achieve close to 100% follow- up, assess our ability to maintain 100% data quality, field test our case report forms for clarity and appropriateness, and to determine whether we can successfully manage the logistics of coordinating trial activities across multiple sites.
This trial is a pilot, multi-center, concealed randomized controlled trial. Surgeons will use one of the two surgical strategies in patients who have sustained a trochanteric fracture; the Gamma3 intramedullary nail or the sliding hip screw. Clinical assessments will occur at the time of hospital admission, 1 week, 3 months, 6 months, and 12 months after surgery.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Active comparator | Procedure: Gamma3 intramedullary nail (Stryker)Gamma3 intramedullary nail |
| 2 | Active comparator | Procedure: Sliding Hip ScrewSliding hip screw |
Who may qualify
- Ages
- 50 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Adult men or women aged 50 years and older (with no upper age limit).
- An trochanteric fracture (stable or unstable) confirmed with anterior and posterior lateral hip radiographs, computed tomography, or magnetic resonance imaging (MRI).
- Operative treatment within 3 days (i.e., 72 hours) after the trauma.
- Patient was ambulatory prior to fracture, though they may have used an aid such as a cane or a walker.
- Anticipated medical optimization of the patient for operative fixation of the proximal femur.
Key exclusion criteria (9 listed)
- Associated major injuries of the lower extremity (i.e., ipsilateral or contralateral fractures of the foot, ankle, tibia, fibula, knee, or femur; dislocations of the ankle, knee, or hip; or femoral head defects or fracture).
- Retained hardware around the affected hip.
- Infection around the hip (i.e., soft tissue or bone).
- Patients with disorders of bone metabolism other than osteoporosis (i.e., Paget's disease, renal osteodystrophy, or osteomalacia).
- Moderate or severe cognitively impaired patients (i.e., Six Item Screener with three or more errors).
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 |
|---|---|---|
| Gamma3 intramedullary nail (Stryker)Also: Gamma Nail, Gamma3 Nail, Intramedullary Nail (IM Nail)The Gamma3 nail is cannulated for Guide-Wire-controlled insertion, and features a conical tip for optimal alignment with the inner part of the cortical bone. A single distal Locking Screw is provided to stabilize the nail in the medullary canal and to help to prevent rotation in complex fractures. | Procedure or surgery | 1 |
| Sliding Hip ScrewAlso: Sliding Hip Screw (SHS), Dynamic Hip Screw (DHS), Compression Screw and Side PlateThe sliding hip screw is a single larger diameter partially threaded screw, which is affixed to the proximal femur with a side plate (with a minimum of two holes and a maximum of four holes) and no supplemental fixation. | Procedure or surgery | 2 |
Primary outcome
Rates of revision surgery
Time frame: 1 year
Revision surgery is classified as any unplanned surgery done to promote fracture healing, relieve pain, treat infection, or improve function include the following: 1) implant removal prior to fracture healing (to achieve union); 2) revision surgery with another internal fixation implant; 3) revision surgery to arthroplasty; 4) incision and drainage for deep infection at the bone implant interface; 5) correction of malunion; and 6) repair of a femoral shaft fracture.
3 secondary outcomes
Health Related Quality of Life
Time frame: Up to12 months
Fracture healing rates
Time frame: Up to12 months
Complications
Time frame: Up to12 months
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 27 Jun 2011.
- Background: PubMed 8832319Parker MJ, Pryor GA. Gamma versus DHS nailing for extracapsular femoral fractures. Meta-analysis of ten randomised trials. Int Orthop. 1996;20(3):163-8. doi: 10.1007/s002640050055.
- Background: PubMed 12151898Ahrengart L, Tornkvist H, Fornander P, Thorngren KG, Pasanen L, Wahlstrom P, Honkonen S, Lindgren U. A randomized study of the compression hip screw and Gamma nail in 426 fractures. Clin Orthop Relat Res. 2002 Aug;(401):209-22. doi: 10.1097/00003086-200208000-00024.
- Background: PubMed 11879828Harrington P, Nihal A, Singhania AK, Howell FR. Intramedullary hip screw versus sliding hip screw for unstable intertrochanteric femoral fractures in the elderly. Injury. 2002 Jan;33(1):23-8. doi: 10.1016/s0020-1383(01)00106-1.
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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.
Mohit Bhandari, MD FRCSC MSc principal investigator
McMaster University
5 sites in 3 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Gamma3 intramedullary nail (Stryker) and Sliding Hip Screw in people with Femoral Neck Fractures and Intertrochanteric Fracture, run by Stryker Trauma and Extremities at 5 sites in 3 countries.
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 8 inclusion and 9 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 27 Jun 2011. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 5 sites in Canada, Denmark, Sweden. 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?
Rates of revision surgery (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00555945, which also lists 3 linked publications.
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 27 Jun 2011; AzTrials last refreshed its copy on 8 Nov 2026.