Cup Anteversion/tilt Effects on Dislocation Propensity for Small-head-size Total Hip Replacements
نویسندگان
چکیده
Malposition of the acetabular component is a leading cause of dislocation in total hip arthroplasty (Woo, 1982). The two most influential surgeon-controlled variables are thought to be abduction (tilt) and anteversion of the cup. Empirically, while 30-50° of tilt and 5-25° of anteversion is felt to be a “safe-zone” (Morrey, 1992), dislocation nevertheless remains a disturbingly frequent occurrence.
منابع مشابه
Cup Abduction/anteversion Effects on Dislocation Propensity for Small-head-size Thr
INTRODUCTION Malposition of the acetabular component is recognized as a leading cause of dislocation in total hip arthroplasty [4]. Intraoperatively, the most influential surgeon-controlled variables are abduction (tilt) and anteversion (AV) of the cup. Empirically, while 30-50° of tilt and 5-25° of AV is felt to be a “safe-zone” [2], dislocation nevertheless remains a disturbingly frequent occ...
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Dislocation is a serious complication in total hip replacement (THR). An inadequate range of movement (ROM) can lead to impingement of the prosthesis neck on the acetabular cup; furthermore, the initiation of subluxation and dislocation may occur. The objective of this study was to generate a parametric three-dimensional finite element (FE) model capable of predicting the dislocation stability ...
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