Fixation for the Treatment of Femoral Neck Fractures

Study Overview
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Brief Summary
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The femoral neck fracture is the most prevalent injuries which commonly encountered among older people with high mortality, morbidity and young fit healthy ones who subjected to high-energy trauma . Non-union or avascular necrosis of femoral neck fracture which lead to loss of labor capacity and death, is the most commonly occurred complication and results in considerable burden for family. The treatment is difficult and challenging, and to minimize the negative results such as limited mobilization or other complications, it is essential to take active prevention and appropriate treatment depending on fracture pattern and patients' characteristics as early as possible. However, current implant selections for femoral neck fractures remain a topic of greater interest and controversy, and vary substantially from each other .

Detailed Description
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The incidence of femoral neck fracture accounts for 3.6% of all fractures, is the most prevalent injuries which commonly encountered among older people with high mortality, morbidity and young fit healthy ones who subjected to high-energy trauma . Non-union or avascular necrosis of femoral neck fracture which lead to loss of labor capacity and death, is the most commonly occurred complication and results in considerable burden for family. The treatment is difficult and challenging, and to minimize the negative results such as limited mobilization or other complications, it is essential to take active prevention and appropriate treatment depending on fracture pattern and patients' characteristics as early as possible. However, current implant selections for femoral neck fractures remain a topic of greater interest and controversy, and vary substantially from each other depending on the extent of displacement, fracture configuration, physiological age of the patient, bone quality or other relative factors. Nonoperative management is considered only when patients are seriously ill or presented with excessive surgical risk.

Official Title
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the Fixation Method for the Treatment of Femoral Neck Fractures

Conditions
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Femoral Neck Fracture

Intervention / Treatment
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* Procedure: fixation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: closed femoral neck fracture no fractures at other sites surgical treatment with cannulated compression screws or PFNA follow-up time greater than 1 years. Exclusion Criteria: the absence of severe cognitive dysfunction, the presence of a pathological femoral neck fracture previous femoral neck fracture, treated with other internal fixations and surgical treatment with open reduction.
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: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: three screws fixation<br>femoral neck fractures were fixed with three converted screws | Procedure: fixation<br>* treated with different fixation method<br>|
| Experimental: four screws fixation<br>femoral neck fractures were fixed with four screws | Procedure: fixation<br>* treated with different fixation method<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| outcome measure were evaluated by femoral neck shortening with X rays | femoral neck shortening after 1 year with radiology measure, | up to 12 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| nonunion | the number of nonunion at the end of follow up in patients | up to 12 months | 
| screw-exit | screw-exit afer 1 year with X rays in all patients | up to 12 months | 
| cut-out | cut-out of the screw evaluating with x rays in all patients | up t 12 months |