Contemporary posterior surgical approach with standard cemented total hip arthroplasty for femoral neck fracture in patients of age 60 years and older: Still a safe option?

Purpose: The ideal operative treatment of displaced intracapsular femoral neck fractures in the active elderly is contentious. Recent literature favours a better outcome with the use of total hip arthroplasty (THA). Dislocation remains a major concern with THA, especially when a posterior approach is used. More recently, the concept of dual mobility cups is being promoted to avoid dislocations. The aim of the present study was to look at the outcomes of cemented THA utilising the posterior approach for these patients using a 28 ​mm (mm) femoral head. Methods: This study retrospectively analysed the outcome of 108 primary cemented THA, performed by specialist hip surgeons, using a posterior approach with robust soft tissue repair in patients of age 60 years and older presenting with displaced intra capsular femoral neck fractures using a 28 ​mm head. Result: At mean follow-up of 5.2 years (2.0–10.5 years), there were 2 dislocations (1.9%). One underwent manipulation under anaesthesia and the other had application of a posterior lip augmentation device. No other revisions were performed during the follow up period. The 30 day mortality was nil and no post-operative deep infections. Hundred patients (93%) at 1 year follow-up were independently mobilising. Conclusions: With optimal patient selection, an excellent outcome can be achieved for patients with displaced femoral neck fractures using the standard cemented THA via the posterior approach with 28 ​mm head. A robust soft tissue repair and a specialist hip surgeon is recommended for this cohort of patients.