الفهرس 
Biomechanics of the hip jointOnly 14 pages are availabe for public view
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Abstract
Background: Total hip arthroplasty (THA) is considered one of the most successful surgical procedures providing pain relief and improvement of function in patients with end-stage hip arthritis that does not respond to non-operative treatments. As health care continues to improve and life expectancy increases, the demand for total joint replacement will grow to reflect this more active, aging population.
Objectives: This study aims to review early complications of dual mobility cup arthroplasty. The objective is to perform a systematic review of early complications of dual mobility cup arthroplasty for primary and revision cases.
Methodology: Types of studies we will include randomized control trails (RCTs), controlled clinical trials, retrospective cohort studies, and we will exclude case reports, case series studies, cross sectional studies, non English studies. Search results will be conducted to systematic review management software and manually screened for eligibility to be included. PRISMA flowchart will be produced based on the search results and the inclusion/exclusion criteria. We will search the MED-LINE database, PubMed, Cochrane Bone and Muscle Trauma group Specialized Register, Cochrane Register of Controlled Trails (The Cochrane Library) using the following keywords related to: THA, Dual mobility cup, complications, intraprosethetic dislocation.
Results: Early complication rate in dual mobility cups is significantly higher in revision cases compared to primary cases, with the exception of IPD which was significantly lower in revision cases. Early complication rate of conventional THA was significantly higher than both primary and revision dual mobility cups.
Conclusion: Dual mobility THAs are a good alternative to traditional bearing surfaces with long survivorship and low rates of instability after primary and revision THA. The rate of complications which are unique to the procedure, including intraprosthetic dislocation, is relatively low and limited mainly to earlier designs. High-quality, prospective, comparative studies are needed to further evaluate the use of dual mobility in primary and revision THA.