Good vs Poor Results After Total Hip Arthroplasty: An Analysis Method Using Implant and Anatomic Parameters With the EOS Imaging System

Bendaya, S.; Anglin, Carolyn; Lazennec, Jean-Yves; Allena, Rachèle; Thoumie, P.; Skalli, Wafa

doi:10.1016/j.arth.2015.12.036

Cited by 21 publications

(16 citation statements)

References 34 publications

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“…However, with progressive ageing of the spine, this compensatory mechanism becomes ineffective and the patient starts to become sagittally imbalanced as shown by the excessively anterior C7pl (‘decompensated stage’). 8 , 13 A sagittal imbalance substantially affects the quality of life and can be clinically deleterious 14 - 16 because, when standing, the patient has to hyperextend the neck in order to keep a horizontal sightline, and the hips are at risk of OA secondary to aberrant standing functional acetabular orientation, under-coverage of the femoral head anteriorly and posterior impingement. 17 , 18 With THA, implants would therefore be at a higher risk of failure, notably through complications related to edge-loading and anterior prosthetic instability.…”

Section: Abnormal Shrmentioning

confidence: 99%

Spine–hip relations in patients with hip osteoarthritis

et al. 2018

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Patients with hip osteoarthritis often have an abnormal spine-hip relation (SHR), meaning the presence of a clinically deleterious spine-hip and/or hip-spine syndrome.Definition of the individual SHR is ideally done using the EOS® imaging system or, if not available, with conventional lumbopelvic lateral radiographs.By pre-operatively screening patients with abnormal SHR, it is possible to refine total hip replacement (THR) surgical planning, which may improve outcomes.An important component of the concept of kinematically aligned total hip arthroplasty (KA THA) consists of defining the optimal acetabular cup design and orientation based on the assessment of an individual’s SHR, and use of the transverse acetabular ligament to adjust the cup positioning.The Bordeaux classification might advance the understanding of SHR and hopefully help improve THR outcomes.Cite this article: EFORT Open Rev 2018;3:39-44. DOI: 10.1302/2058-5241.3.170020

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Section: Abnormal Shrmentioning

confidence: 99%

Spine–hip relations in patients with hip osteoarthritis

et al. 2018

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“…A number of authors have noted similar findings. Bendaya et al 16 noted that single plane image analysis in non-functional positions fails to accurately measure acetabular cup positioning. Multiple authors have identified difficulty in measuring anteversion on an AP pelvic radiograph, and Kalteis et al 6,17 noted the potential for large error in measuring anteversion ranging from −16.6° to + 29.8°.…”

Section: Discussionmentioning

confidence: 99%

Are single plane intraoperative and biplanar postoperative radiographic measurements of acetabular cup position the same?

et al. 2019

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Purpose: Supine positioning and the use of fluoroscopy during direct anterior approach total hip arthroplasty (DAA THA) have been reported to improve acetabular component positioning. This study aims to compare 2-dimensional intraoperative radiographic RadLink measurements of acetabular component position with 3-dimensional postoperative 3D SterEOS measurements. Methods: Intraoperative fluoroscopy and RadLink (El Segundo, CA, USA) were used to measure acetabular cup position intraoperatively in 48 consecutive patients undergoing DAA THA. Cup position was measured on 6-week postoperative standing EOS images using 3D SterEOS software (EOS Imaging, SA, Paris, France) and compared to RadLink findings using Student’s t-test. Safe-zone outliers were identified. We evaluated for measurement difference of > +/– 5°. Results: RadLink acetabular cup abduction measurement (mean 43.0°) was not significantly different than 3D SterEOS in the anatomic plane (mean 42.6°, p = 0.50) or in the functional plane (mean 42.7°, p = 0.61). RadLink acetabular cup anteversion measurement (mean 17.9°) was significantly different than 3D SterEOS in both the anatomic plane (mean 20.6°, p = 0.022) and the functional plane (mean 21.2°, p = 0.002). RadLink identified 2 cups outside of the safe-zone. However, SterEOS identified 12 (anatomic plane) and 10 (functional plane) outside of the safe-zone. In the functional plane, 58% of anteversion and 92% of abduction RadLink measurements were within +/– 5° of 3D SterEOS. Conclusions: Intraoperative fluoroscopic RadLink acetabular anteversion measurements are significantly different than 3D SterEOS measurements, while abduction measurements are similar. Significantly more acetabular cups were noted to be outside of the safe-zone when evaluated with 3D SterEOS versus RadLink.

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“…Images and associated 3D semi-automatic reconstructions were derived from EOS biplanar radiographs (Dubousset et al 2010) (EOS Imaging, Paris, France) of 120 subjects (57 females, 63 males) collected in previous studies (Surets et al 2005;Chaibi et al 2012;Quijano et al 2013;Pillet et al 2014;Sangeux et al 2014;Ohl et al 2015;Amabile et al 2016;Bendaya et al 2016;Zhang et al 2016;Ghostine et al 2017). Ages, weights and heights were comprised between 20 and 76 years old, 42 and 120 kg and 150 and 190 cm.…”

Section: Biplanar X-ray Acquisition and 3d Reconstruction Of The Pelvismentioning

confidence: 99%

Subject specific finite element mesh generation of the pelvis from biplanar x-ray images: application to 120 clinical cases

Fougeron

Rohan

Macron

et al. 2018

Computer Methods in Biomechanics and Biomedical Engineering

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Several Finite Element (FE) models of the pelvis have been developed to comprehensively assess the onset of pathologies and for clinical and industrial applications. However, because of the difficulties associated with the creation of subject-specific FE mesh from CT scan and MR images, most of the existing models rely on the data of one given individual. Moreover, although several fast and robust methods have been developed for automatically generating tetrahedral meshes of arbitrary geometries, hexahedral meshes are still preferred today because of their distinct advantages but their generation remains an open challenge. Recently, approaches have been proposed for fast 3D reconstruction of bones based on X-ray imaging. In this study, we adapted such an approach for the fast and automatic generation of all-hexahedral subject-specific FE models of the pelvis based on the elastic registration of a generic mesh to the subject-specific target in conjunction with element regularity and quality correction. The technique was successfully tested on a database of 120 3D reconstructions of pelvises from biplanar X-ray images. For each patient, a full hexahedral subject-specific FE mesh was generated with an accurate surface representation.

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Good vs Poor Results After Total Hip Arthroplasty: An Analysis Method Using Implant and Anatomic Parameters With the EOS Imaging System

Abstract: With the EOS system, a large cohort can be studied relatively quickly and at low dose, which could lead to patient-specific guidelines.

Cited by 21 publications

References 34 publications

Spine–hip relations in patients with hip osteoarthritis

Spine–hip relations in patients with hip osteoarthritis

Are single plane intraoperative and biplanar postoperative radiographic measurements of acetabular cup position the same?

Subject specific finite element mesh generation of the pelvis from biplanar x-ray images: application to 120 clinical cases

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