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Acetabular Position Setting in Total Hip Arthoplasty by using V-Inclinometer


Vajara Wilairatana MD*,
Pariach Prasongchin MD*

* Department of Orthopaedic Surgery, Faculty of Medicine, Chulalongkorn University


The abduction angle of the acetabular implant position is important in the process of total hip arthroplasty. The authors evaluated the potential benefit of a V-inclinometer in the prediction of the abduction angle. To evaluate the accuracy of the V-inclinometer , acetabular cups were inserted in 50 cadaveric pelvises. The abduction angle from V-inclinometer and digital photograph were compared and analyzed using paired t-test. There was no statistical difference of the acetabular abduction angle between digital photograph and V-inclinometer ( P > 0.05). The V-inclinometer can be used to predict the abduction angle on a cadaveric pelvis, suggesting that it could be a useful adjunct in clinical practice.

Keyword : Abduction angle, Total hip arthroplasty, V-inclinometer, Digital photograph

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