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Trauma

FAILURES OF FEMUR NECK FRACTURES FIXATIONS IN YOUTH

International Society for Fracture Repair (ISFR)



Abstract

Introduction

Femur neck fractures (NOF) in the young could result in mal-union, non-union and avascular necrosis of the femoral head. Osteosynthesis is the standard of management in NOFs in young patient above complications sometimes end in Arthroplasty. The aim of our study is to identify predictors of NOF failures in the young population.

Method

A retrospective study conducted in a single center. Patients with NOF fractures below the age of <50y excluding pathological and osteoporotic fractures were assessed in the period from 2005–2008. The mean follow-up was 22 months (6–40). Fractures were classified according to Gardens classification. Our Aim was to identify causative factors for fixation failures. Analysis was done using SPSS 17.0.

Results

Within the 4 year period we identified 41 NOF fractures, 24 (75%) fractures were displaced. 7 (25%) out of the displaced fractures went in to failure and required arthroplasty. 3 (42%) went in to avascular necrosis and 2(28.5%) went in to screw cut out and non unions. All failures were primarily fixed with cancellous screws. We identified Male sex (p=0.03), Pre-operative delay of >25h (p=0.04), Chronic alcohol intake (p=0.02) and intra operative time >107min (p=0.001) as the main predictors of NOF failures in the young.

Conclusion

Early surgical intervention within 25h, restricting the operation time to less than 107min would reduce the failure rates. We would recommend arthroplasty for patients who are chronic alcoholics.