Comparison of Three-Dimensional Planning-Assisted and Conventional Acetabular Cup Positioning in Total Hip Arthroplasty: A Randomized Controlled Trial

The Journal of Bone and Joint Surgery. American Volume
Elhadi SarialiHugues Pascal Moussellard

Abstract

Malpositioning of the acetabular cup during total hip arthroplasty increases the risk of dislocation, edge-loading, squeaking, early wear, and loosening. We hypothesized that the use of three-dimensional (3-D) visualization tools to identify the planned cup position relative to the acetabular edge intraoperatively would increase the accuracy of cup orientation. The purpose of this study was to compare 3-D planning-assisted implantation and freehand insertion of the acetabular cup. This was a prospective randomized controlled study of two groups of twenty-eight patients each. In the first group, cup positioning was guided by 3-D views of the cup within the acetabulum obtained during 3-D preoperative planning. In the control group, the cup was placed freehand. All of the patients were operated on by the same surgeon, through a minimally invasive direct anterior approach with the patient in the supine position. Cup anteversion and abduction angles were measured on 3-D computed tomography (CT) reconstructions. The main evaluation criterion was the percentage of outliers according to the Lewinnek safe zone. Operative time did not differ between the two groups. The cup anteversion was more accurate in the 3-D planning group (mean dif...Continue Reading

References

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Citations

Sep 6, 2017·The Journal of Bone and Joint Surgery. American Volume·Yuhui YangZhongli Gao
Jan 4, 2020·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Ioannis P StathopoulosIoannis K Tsarouchas
Sep 12, 2018·Journal of Orthopaedics and Traumatology : Official Journal of the Italian Society of Orthopaedics and Traumatology·C FaldiniF Traina
Oct 23, 2020·Modern Rheumatology Case Reports·Yutaro SugiuraMorio Matsumoto
Apr 9, 2020·Orthopaedics & Traumatology, Surgery & Research : OTSR·Ibraheim El-DalyElhadi Sariali
Jun 28, 2021·Journal of Shoulder and Elbow Surgery·Atsushi TanjiKazuki Sato
Aug 27, 2021·Journal of Clinical Orthopaedics and Trauma·Alejandro HernándezVíctor Barro
Apr 9, 2020·The Journal of Knee Surgery·Nipun SodhiMichael A Mont

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