[Evaluation of femoral neck fracture treatment with hemiarthroplasty in elderly patients].

The authors reviewed the medical records of 457 patients who underwent a hemiarthroplasty procedure for the treatment of displaced femoral neck fracture. The age of the patients ranged from 60 to 103 years (mean age: 83 years). Follow-up evaluation of 331 patients was done 4-114 months post-op (mean follow-up time 52 months). 19 patients (4.2%) died in hospital, 67 patients (14.6%) developed systemic conditions during hospitalisation. 12 months post-op the mortality rate was 15.7%. Mean survival was 36.5 months. According to the Merle d'Aubigne-Postel evaluation system there were 154 satisfactory results (75.9%). Cemented or uncemented implantation techniques had no influence on long term results. 94 patients (4.2%) achieved pre-injury mobility. The reoperation rate was 8.1%. Poor general conditions at admission that postponed surgery and impaired mobility were strong negative prognostic factors.