الفهرس 
Anatomy of the Hip Joint & Classification of Fracture Neck of FemurOnly 14 pages are availabe for public view
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Abstract
Background: Bipolar hemiarthroplasty (BA) has long been the preferred treatment and is performed in most fracture neck of femur (FNF) cases. The dual mobility cup total hip replacement (DMTHA) has emerged as a relevant alternative to BA. Since then, there is an on-going debate on the best implant to use. Age, co-morbidities, patient independence and potential surgical complications must be considered when deciding between implants. The risk of dislocation is a crucial factor because of its important consequences. We evaluated the functional and mechanical outcomes of BA versus DMTHA in FNF in active elderly patients.
Methods: This study was randomized comparative interventional single blinded, performed at Ain Shams university hospitals. A total of 33 patients underwent DMTHA or BA after displaced FNF. Primary outcomes were functional outcome and post-operative dislocation rate. Secondary outcomes were operative time and amount of blood loss.
Results: There were no significant difference between the demographic data and pre-operative parameters between the two groups. We found a significant difference in the post-operative HHS between the two groups (P value=0.01). VAS of groin pain was significantly different between the two groups (P value<0.001). There was no significant difference between the two groups regarding the dislocation rate.
Conclusion: We concluded in this study that DMTHA offers a better functional outcome than BA with no significant complications or mortality. No significant difference between DMTHA and BA in the rate of dislocation.
Level of evidence: level two
NCT04680572 22/12/2020 retrospectively registered in clinicaltrials.gov