Hemiarthroplasty Compared to Total Hip Arthroplasty for Displaced Femoral Neck Fractures in the Elderly-elderly

Inclusion Criteria: * Acute displaced femoral neck fracture of hip (Garden classification 3-4) * Independent walker with or without walking aides * Patient willing to participate in the study and give written consent. Exclusion Criteria: * Fracture older than 36 hours before admission * Osteoarthritis in the fractured hip * Rheumatoid arthritis in the fractured hip * Pathological fractures * Contraindication for hip arthroplasty surgery * Not suitable for inclusion for other reasons e.g. substance abuse