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There is no consensus as to whether osteosynthesis (OS) or hemiarthroplasty (HA) should be used as the primary treatment of displaced femoral-neck fracture. In a prospective matched-pair study, we compared 84 patients treated with OS with three screws and 84 patients treated with uncemented Austin-Moore HA focusing on functional parameters, reoperations and mortality. At 4 months after the fracture, functional recovery was not significantly different between the study groups. However, OS patients tended to have slightly better functional ability than HA patients, as more of them were able to walk out of doors (45.2% versus 39.2%), more were able to walk without walking aids (23.7% versus 16.7%), and more returned to live in their own homes (80%versus 72.9%). OS patients used slightly but not significantly less painkillers and had less hip pain than HA patients. OS patients had had 15.4% more reoperations by 4 months and 14.2% more by 1 year compared to the HA group. The 4-month and 1-year mortality rates of the study groups were of the same order. Functional recovery was slightly better after OS with three screws than after uncemented HA, although no significant differences were seen in a sample of this size. On the other hand, OS was associated with a higher reoperation rate.

international orthopaedics

Functional comparison between uncemented Austin-Moore hemiarthroplasty and osteosynthesis with three screws in displaced femoral neck fractures?a matched-pair study of 168 patients