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Arthroplasty

Using the transverse acetabular ligament as a guide in THA improves component alignment

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ARTHROPLASTY

Using the transverse acetabular ligament as a guide in THA improves component alignment .

This report has been verified by one or more authors of the original publication.

The use of the transverse acetabular ligament for determining the orientation of the components in total hip replacement: a randomised controlled trial

Bone Joint J. 2014 Mar;96-B(3):312-8. doi: 10.1302/0301-620X.96B3.32989.

Contributing Authors

G Meermans WJ Van Doorn K Koenraadt J Kats

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Dr. Meermans discusses the results of using the transverse acetabular ligament as a guide in THA improves component alignment

80 patients undergoing total hip arthroplasty (THA) were randomized to have the acetabular component implanted either using the transverse acetabular ligament (TAL) as a guide or using a conventional freehand technique. The purpose of this study was to compare these two approaches with respect to the anteversion and inclination of the acetabular component. Results indicated that the TAL group had a more accurate mean anteversion when compared to the freehand technique; however this practice did not influence the inclination. Overall, the number of implants outside of the “safe zone” (5-25 degrees of anteversion and 30-50 degrees of inclination) was significantly lower in the TAL group.

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