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Trauma

IS THE OUTCOME AFTER HEMIPROSTHESIS OF THE HIP IN FEMORAL NECK FRACTURES SIGNIFICANTLY INFLUENCED BY CHOICE OF A MINIMALLY INVASIVE APPROACH?

European Federation of National Associations of Orthopaedics and Traumatology (EFORT) - 12th Congress



Abstract

Introduction

Depending on patient's age, risk factors and pretraumatic mobility, a total- or hemiarthroplasty of the hip have become the treatment of choice in femoral neck fractures(1–4). Internal fixation has shown to provide minor results. The majority of these patients are therefore treated by a hemiarthroplasty of the hip. Since the primary goal is to regain the pretraumatic level of mobility as soon as possible(3;5), we sought to investigate, if a minimal invasive anterior approach would be beneficial in regard of perioperative blood loss(6), postoperative pain(7;8) and thus postoperative mobility(9).

Patients and methods

In a randomised controlled trial, 48 patients were treated by a hemiarthroplasty of the hip via an anterior or lateral approach in supine position within 72 hours after trauma(10). Apart from parameters like age, ASA-Score or Body-mass-index, the main focus was set on perioperative blood loss, pain and postoperative mobilisation. All data collected were compared between groups to detect statistical significant differences. Additionally the same parameters were checked for significant differences comparing patients with or without complications within their group.

Results

A significant difference between groups was found for postoperative pain within the first 72 hours and for operation time, both to the disadvantage of the minimal invasive approach group. Within groups, time of operation and patient's age were significantly higher in patients with complications in the minimal invasive group such as pain at 48 hours was rated higher in patients with complications in the lateral approach group. These results though did not seem to influence postoperative mobility since no significant differences were found between groups at follow-up.

Conclusion

Despite some differences in the postoperative course, postoperative mobility does not seem to be greatly influenced by the choice of the approach for hemiarthroplasty of the hip in femoral neck fractures. Still, the operation time was significantly linked to postoperative complications. In this respect, it can be concluded, that the approach an individual surgeon is most familiar with is likely to lead to best results.