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orientation and position of the implanted cup. Improper acetabular orientation and position can lead to: (i) limited range of motion ( 1 ); (ii) increased dislocation rate ( 2 ); (iii) accelerated wear of polyethylene ( 3 ), metal-on-metal ( 4 ) and ceramic
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selection The following inclusion and exclusion criteria were applied in order to determine the studies to be used: Inclusion criteria THA patients (any indication for surgery) Uncemented and/or cemented prostheses (acetabular cups and/or femoral
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during the impaction of an uncemented acetabular component or during the removal of the previous acetabular cup or in the setting of revision THR due to gradual acetabular bone loss. Classification According to the American Academy of Orthopaedic
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led to several lawsuits against the manufacturers and resistance to the uptake of this technology for THA. 31 Furthermore, this technology has not been established for acetabular reaming or acetabular cup placement and its impact on achieving the
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mechanical axes 2 , 3 and the acetabular cup component was medialized as much as possible. 1 , 4 , 5 A few years later, Lewinnek et al 6 recommended that the acetabular cup was radiographically positioned with 40° inclination and 20
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acetabulum, and this can affect cup placement. 27 Achieving ideal cup orientation is crucial in reducing edge-loading and articular impingement, which would otherwise lead to accelerated wear, squeaking, increased dislocation risk 44 and prosthetic
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provides an overview of the hip–spine relationship and its implications for patients undergoing total hip arthroplasty (THA). A crucial step in THA is to position the cup in such a way to obtain a stable joint without neck-cup impingement or edge loading
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arthroplasty and found the additional cost of a dislocation within six weeks of surgery is 342% of the primary cost. 3 Following primary THA, complications may occur as a result of incorrect component positioning of the femoral stem, the acetabular cup or
Center of Orthopaedics and Regenerative Medicine (C.O.RE.) – Center of Interdisciplinary Research and Innovation (C.I.R.I.) – Aristotle University Thessaloniki, Balkan Center, Hellas, Greece
Hôpital de la Tour, Geneva, Switzerland
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Center of Orthopaedics and Regenerative Medicine (C.O.RE.) – Center of Interdisciplinary Research and Innovation (C.I.R.I.) – Aristotle University Thessaloniki, Balkan Center, Hellas, Greece
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of SCD patients for the included studies Author Surgical Approach Type of anaesthesia Type of fixation Type of stem Femoral Head/bearing couple Type of Cup Functional Score (preop/postop) Bishop et al 9
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prediction has been proven satisfactory, with good inter-observer variability. 7 – 9 , 11 , 13 , 21 – 28 Prediction rates for femoral stem and acetabular cup sizes range between 34–100% and 41–100% respectively ( Table 3 ). Considering this, 3D pre
