Dual-Mobility Articulations in Femoral Neck Fractures lowers
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Femoral neck fractures have been traditionally managed with hemiarthroplasty (HA) or conventional total hip arthroplasty (CTHA). There has been recent interest in using dual-mobility components (DMC) in total hip arthroplasty for patients with femoral neck fractures to provide increased stability and decrease the need for future revision.

A systematic review of the literature reporting on the use of DMC in the management of femoral neck fractures in geriatric patients was conducted. Studies in which DMC were used alone and studies that included a comparison to total hip arthroplasty or HA were included. For the comparative studies, the differences in outcomes using a random-effects model of relative risks were analyzed.

--18 studies met the inclusion criteria and were included in the analysis.

--11 noncomparative studies showed a cumulative incidence of dislocation to be 1.2% when DMC were used alone.

--Subgroup analysis of the 7 comparative studies yielded a relative risk of dislocation using DMC was 59% less than HA and 83% less than CTHA.

--DMC also compared favorably in terms of revision surgery and revision rates to HA.

--There was insufficient quality evidence to comment on revision surgery and revision rates when compared with CTHA in comparative studies, but among the noncomparative studies, there was a low rate of revision and revision surgery.

In conclusion, the risk of dislocation with DMC was overall lower than both CTHA and HA in this investigation. Also, the revision and revision operational rates in comparison with HA were reduced. DMC was employed.

Source: https://journals.lww.com/jaaos/Abstract/2021/06150/Dual_Mobility_Articulations_in_Femoral_Neck.11.aspx