Accuracy of CT-based measurements of glenoid version for total shoulder arthroplasty

Hoenecke, Heinz R.; Hermida, Juan C.; Flores‐Hernandez, Cesar; D’Lima, Darryl D.

doi:10.1016/j.jse.2009.08.009

Cited by 171 publications

(162 citation statements)

References 11 publications

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“…Nevertheless, correcting 2D measurements by the 3D model of the bone might give better accuracy of glenoid version assessment [12]. Additionally, recent data have shown that 3D reconstruction could provide reliable assessment of component position after TSA [7], reliable measurement of glenoid version [26] or adequately quantified erosion in type B glenoids [27].…”

Section: Introductionmentioning

confidence: 99%

Reliability of measurements performed on two dimensional and three dimensional computed tomography in glenoid assessment for instability

Kubicka

Stefaniak

Lubiatowski

et al. 2016

International Orthopaedics (SICOT)

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Purpose The main purpose of this study is to establish which of two methods is more reliable in glenoid assessment for instability in pre-operative planning. Accordingly, we have studied the intra-and inter-observer reliability of glenoid parameters with the use of two-dimensional (2D) and three-dimensional (3D) reconstructed computed tomography (CT) images. Methods One hundred glenoids were measured with the use of 2D-CT and 3D-CT (in 3D orientation) by two independent observers (one experienced and one inexperienced). Measurements were repeated after one week for 30 randomly selected glenoids. Results The intra-class correlation coefficient (ICC) for interobserver reliability was significantly greater for 3D-CT (0.811 to 0.915) than for 2D-CT (0.523 to 0.925). All intra-observer reliability values for 3D-CT were near perfect (0.835 to 0.997), while those for 2D-CT were less reliable (0.704 to 0.960). A dependent t-test showed that, for both observers, almost all glenoid parameters (except R and d) differed significantly (p < 0.05) between 2D and 3D measurement methods. Conclusions Therefore, it can be concluded that 3D glenoid reconstructions are more reliable for glenoid bone loss assessment than 2D-CT. The results suggest that quantifying a glenoid defect with the use of 2D image only-even if performed by an experienced orthopaedic surgeon-is prone to errors. Differences in measurements between and within observers can be explained by plane setting and identifying glenoid rim in 2D -C T. Accordingly, we recommend that glenoid measurements should be performed in 3D orientation using 3D reconstruction obtained from CT images for pre-operative assessments, which are crucial for surgical planning.

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Section: Introductionmentioning

confidence: 99%

Reliability of measurements performed on two dimensional and three dimensional computed tomography in glenoid assessment for instability

Kubicka

Stefaniak

Lubiatowski

et al. 2016

International Orthopaedics (SICOT)

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“…Several 2D studies have reported significant errors. 13,15 In an early attempt, some bony markers were defined on a 3D reconstruction of the scapula, but the version was still measured on axial CT planes. 16 Kwon et al 17 defined a scapular reference system using three bony landmarks: the inferior tip of the scapula body, the centre of the glenoid surface and the medial pole of the scapulawhere the scapular spine intersects the scapular body.…”

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confidence: 99%

“…A 3D assessment of the glenoid orientation was achieved by measuring the inclination of the glenoid, or the location of maximum erosion. 15,18 Various other alternatives were proposed to define the glenoid surface in 3D, either by fitting a plane 19,20 or a sphere. 21,22 In order to characterise the morphology of eroded glenoid surfaces in 3D, we looked for a set of morphological parameters for TSR planning and evaluated their potential on a series of normal and osteoarthritic shoulders.…”

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confidence: 99%

Measurements of three-dimensional glenoid erosion when planning the prosthetic replacement of osteoarthritic shoulders

Terrier

Ston

Larrea

et al. 2014

The Bone & Joint Journal

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The three-dimensional (3D) correction of glenoid erosion is critical to the long-term success of total shoulder replacement (TSR). In order to characterise the 3D morphology of eroded glenoid surfaces, we looked for a set of morphological parameters useful for TSR planning. We defined a scapular coordinates system based on non-eroded bony landmarks. The maximum glenoid version was measured and specified in 3D by its orientation angle. Medialisation was considered relative to the spino-glenoid notch. We analysed regular CT scans of 19 normal (N) and 86 osteoarthritic (OA) scapulae. When the maximum version of OA shoulders was higher than 10°, the orientation was not only posterior, but extended in postero-superior (35%), postero-inferior (6%) and anterior sectors (4%). The medialisation of the glenoid was higher in OA than normal shoulders. The orientation angle of maximum version appeared as a critical parameter to specify the glenoid shape in 3D. It will be very useful in planning the best position for the glenoid in TSR. Osteoarthritis (OA) of the gleno-humeral joint is often associated with an erosion of the glenoid.

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“…This study represents a key first step in expanding our preoperative evaluation of patients with shoulder arthritis. Previously, authors have evaluated primarily the bone quality and morphometry on plain radiographs and CT scans to assess the feasibility of shoulder replacement [4][5][6]. With this study and likely others to follow, perhaps orthopaedic surgeons might consider CT scans or MRI evaluation of the rotator cuff musculature in order to help predict outcomes after shoulder arthroplasty.…”

Section: Where Do We Need To Go?mentioning

confidence: 99%

CORR Insights®: Rotator Cuff Fatty Infiltration and Atrophy Are Associated With Functional Outcomes in Anatomic Shoulder Arthroplasty

Feeley

2015

Clinical Orthopaedics &Amp; Related Research

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Accuracy of CT-based measurements of glenoid version for total shoulder arthroplasty

Cited by 171 publications

References 11 publications

Reliability of measurements performed on two dimensional and three dimensional computed tomography in glenoid assessment for instability

Reliability of measurements performed on two dimensional and three dimensional computed tomography in glenoid assessment for instability

Measurements of three-dimensional glenoid erosion when planning the prosthetic replacement of osteoarthritic shoulders

CORR Insights®: Rotator Cuff Fatty Infiltration and Atrophy Are Associated With Functional Outcomes in Anatomic Shoulder Arthroplasty

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