Navigated Total Hip Arthroplasty Using a 3-D Freehand Ultrasound System: Technical Note and Preliminary Results

Hirschmann, Michael T.; Afifi, Faik K.; Helfrich, Carsten; Wirz, Dieter; Schwägli, Tobias; Overhoff, Heinrich Martin; Moser, Walter; Friederich, Niklaus F.

doi:10.3928/01477447-20111021-08

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…Parratte and colleagues confirmed the high measurement accuracy of 1 mm with a hand-guided ultrasound transducer during registration of the anterior pelvic plane on human cadavers (Parratte et al 2008). By comparing ultrasound and pointer registration in the clinical implementation of a hip navigation system, Hirschmann et al reported deviations in the median acetabulum anteversion of 6° (range, 3°-13°) and in the median inclination of 3° (range, −1°-5°) for ultrasound registration as compared to pointer registration (Hirschmann et al 2011).…”

Section: Introductionmentioning

confidence: 93%

Computer and Template Assisted Orthopedic Surgery

Haaker¹,

Konermann²

2013

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rial is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. Exempted from this legal reservation are brief excerpts in connection with reviews or scholarly analysis or material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work.

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Section: Introductionmentioning

confidence: 93%

Computer and Template Assisted Orthopedic Surgery

Haaker¹,

Konermann²

2013

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“…However, the associated hardware has excessive costs, and the calibration procedures increase operative time [ 16 ]. Finally, recent studies evaluating the use of intraoperative fluoroscopic imaging to optimize component position have shown significant improvements when performing THA [ 6 , 17 , 18 , 19 , 20 , 21 ]. However, manual acquisition and interpretation of these images present challenges in an intraoperative setting, including variability in the radiographic acquisition technique and complex geometric formulas to assess the 3D position of the cup from the 2D fluoroscopic image obtained [ 6 , 17 , 18 , 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Accuracy and Reliability of Software Navigation for Acetabular Component Placement in THA: An In Vitro Validation Study

et al. 2022

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Background and Objectives: Intraoperative fluoroscopy can be used to increase the accuracy of the acetabular component positioning during total hip arthroplasty. However, given the three-dimensional nature of cup positioning, it can be difficult to accurately assess inclination and anteversion angles based on two-dimensional imaging. The purpose of this study is to validate a novel method for calculating the 3D orientation of the acetabular cup from 2D fluoroscopic imaging. Materials and Methods: An acetabular cup was implanted into a radio-opaque pelvis model in nine positions sequentially, and the inclination and anteversion angles were collected in each position using two methods: (1) a coordinate measurement machine (CMM) was used to establish a digitalized anatomical coordinate frame based on pelvic landmarks of the cadaveric specimen, and the 3D position of the cup was then expressed with respect to the anatomical planes; (2) AP radiographic images were collected, and a mathematical formula was utilized to calculate the 3D inclination and anteversion based on the 2D images. The results of each method were compared, and interrater and intrarater reliably of the 2D method were calculated. Results: Interrater reliability was excellent, with an interclass correlation coefficient (ICC) of 0.988 (95% CI 0.975–0.994) for anteversion and 0.997 (95% CI 0.991–0.999) for inclination, as was intrarater reliability, with an ICC of 0.995 (95% CI 0.985–0.998) for anteversion and 0.998 (95% CI 0.994–0.999) for inclination. Intermethod accuracy was excellent with an ICC of 0.986 (95% CI: 0.972–0.993) for anteversion and 0.993 (95% CI: 0.989–0.995) for inclination. The Bland–Altman limit of agreement, which represents the error between the 2D and 3D methods, was found to range between 2 to 5 degrees. Conclusions: This data validates the proposed methodology to calculate 3D anteversion and inclination angles based on 2D fluoroscopic images to within five degrees. This method can be utilized to improve acetabular component placing intraoperatively and to check component placement postoperatively.

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Ultrasound-Guided Acquisition of Bony Landmarks During Navigation

Kiefer

2013

Computer and Template Assisted Orthopedic Surgery

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Navigated Total Hip Arthroplasty Using a 3-D Freehand Ultrasound System: Technical Note and Preliminary Results

Abstract: Ultrasound-navigated cementless total hip arthroplasty (THA) was performed in 10 consecutive patients with primary osteoarthritis of the hip between

Cited by 7 publications

References 22 publications

Computer and Template Assisted Orthopedic Surgery

Computer and Template Assisted Orthopedic Surgery

Accuracy and Reliability of Software Navigation for Acetabular Component Placement in THA: An In Vitro Validation Study

Ultrasound-Guided Acquisition of Bony Landmarks During Navigation

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