Intertrochanteric Femoral Fracture Fixation Trial

Study Overview
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Brief Summary
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The main goal of the study is to determine which cephalomedullary nail results in a better functional outcome for the patient with an unstable intertrochanteric hip fracture. Subjects will be randomized to fixation with either a Gamma3 cephalomedullary nail or an InterTan cephalomedullary nail. Outcomes will be reviewed over a 12 month follow-up period.

Detailed Description
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Primary Hypotheses: Patients who maintain their initial fracture reduction and subsequent position over time with minimal femoral neck shortening and varus will demonstrate significantly improved functional abilities, including gait and abductor function. Secondary Objective: Whether radiographic differences in femoral neck shortening and varus collapse translate into a worse functional outcome to the patient. Whether there are differences in mortality between treatments Whether there is a time frame follow up after which there is no difference in outcomes. Evaluate the device used for fracture stabilization as a potentially contributing factor for maintenance of normal or near-normal abductor function and gait. Primary Outcome: The primary outcome will be functional abilities at 3, 6 and 12 months after injury. The following measures of functional ability will be utilized: Methods: This is a prospective, randomized non-blinded study. Patients will be identified as they present to the orthopaedic trauma service of Tampa General Hospital with a qualifying injury to determine their interest in participating in the study. Written informed consent will be obtained prior to initiation of any study procedures. Group A will undergo cephalomedullary nail-based single screw intertrochanteric hip fracture fixation device (Gamma 3 nail). Group B will receive the integrated dual screw intertrochanteric hip fracture fixation device (Intertan nail). Patient outcomes will be analyzed using intention to treat principles. Following randomization assignment, surgeons will all follow the identical described surgical technique, with the only variable being the implant used. Post-operative immobilization and time to weight bearing and rehabilitation protocols will be again identical for all patients regardless of fixation technique.

Official Title
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A Prospective Randomized Trial of Intertrochanteric Femoral Fractures Treated With a Single Screw Versus a Two-integrated Screw Cephalo-medullary Nail.

Conditions
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Intertrochanteric Fracture, Hip Fracture

Intervention / Treatment
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* Device: InterTan Intertrochanteric Nail
* Device: Gamma 3 Intertrochanteric Nail


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients surgically treated for an intertrochanteric femur fracture at Tampa General Hospital. Skeletally mature patients over the age of 60; both genders. Community ambulators. Exclusion Criteria: Patients with ipsilateral lower extremity injury Patients under age 60 Co-existent, severe knee or back problems Muscle contracture around the knee or hip joint Individuals who have had TKA within 6 months Body mass index (BMI; kg/m2) >40 Suspicious of pathologic fracture (tumor in origin) Pre-op mobility: Non ambulatory; ambulatory indoors with living support Cognitive impairment or dementia Prisoners or impending incarceration Homeless or no stable address.

Ages Eligible for Study
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Minimum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: InterTan Intertrochanteric Nail<br>'Surgical fixation' of intertrochanteric fracture with a cephalomedullary nail with an InterTan device (two-integrated screws) | Device: InterTan Intertrochanteric Nail<br>* Cephalomedullary fixation of intertrochanteric fracture with an InterTan Intertrochanteric Nail<br>|
| Active Comparator: Gamma 3 Intertrochanteric Nail<br>'Surgical fixation' of intertrochanteric fracture with a cephalomedullary nail and Gamma 3 locking nail (single screw) | Device: Gamma 3 Intertrochanteric Nail<br>* Cephalomedullary fixation of intertrochanteric fracture with an Gamma 3 Intertrochanteric Nail<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Hip Function | Hip Function measured with Harris Hip Score. | 6 months post-operatively | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Functional outcome | Functional outcome will be measured using the following outcome measurement: Gait analysis using MiniSun's IDEEA® LifeGait System, a portable device for assessment of functional gait outcomes. | 6 months post-operatively | 
| Walking ability | Subjects will wear a pedometer applied in the immediate post-operative period, and will continue to wear it for 3 months. Total walking steps will be measured. | 3 months post-operatively | 
| Hip range of motion | Range of motion of hip measured with Harris Hip Score. | 6 months post-operatively | 
| Hip Pain | Pain measured with Harris Hip Score. | 6 months post-operatively |