Abstract
Hemiarthroplasty (HA) of the hip joint is a commonly used treatment method for displaced femoral neck fractures (FNF) in the elderly population. The revision rates following hemiarthroplasty for trauma are 4-24% (2), but there are few studies in the literature presenting bilateral complications of HA following FNF treatment. We present a 67-year-old female with migration and angular deformity of the left unipolar prosthesis followed by malposition and subluxation of the right unipolar prosthesis after sixteen months, which are not common complications and they are even less frequent to occur in one patient.