Optimizing reverse shoulder arthroplasty component position in the setting of advanced arthritis with posterior glenoid erosion: a computer-enhanced range of motion analysis

Keener, Jay D.; Patterson, Brendan M.; Orvets, Nathan D.; Aleem, Alexander W.; Chamberlain, Aaron M.

doi:10.1016/j.jse.2017.09.011

Cited by 85 publications

(63 citation statements)

References 30 publications

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“…). In addition, Keener et al reported increases of 20° (flexion), 68° (extension), 30° (external rotation), and 21° (internal rotation) in average impingement‐free ROM of 10 different bony geometries when decreasing NSA from 155° to 135°. However, the same implant variation caused a decrease of 11° in an average abduction ROM.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies related to ROM of rTSA generally characterize ranges of motions that are contained within a subset of single paths (i.e., abduction, flexion, axial rotation, etc.) . However, conclusions pertaining to implant performance drawn from a subset of investigated motions may be misleading, as it has been shown that differing implant designs maximize different motions .…”

Section: Discussionmentioning

confidence: 99%

“…The most commonly studied ROM‐limiting factor is impingement. Examples of parameters reported to increase impingement‐free ROM include increasing center of rotation lateralization and decreasing humeral cup depth . Some parameters, however, have been reported to have more complicated relationships with ROM, depending on the specific motions studied.…”

mentioning

confidence: 99%

“…Some parameters, however, have been reported to have more complicated relationships with ROM, depending on the specific motions studied. For instance, the increasing the neck‐shaft angle has been reported to increase ROM in abduction, but at the cost of decreased impingement‐free ROM in extension, flexion, adduction, and I/E rotation . These complexities in the relationships between implant design and ROM were further highlighted by Virani et al, who reported that maximized impingement‐free abduction, flexion/extension, and I/E rotation motions resulted from implant configurations having variable neck‐shaft angles.…”

mentioning

confidence: 99%

“…Examples of parameters reported to increase impingement-free ROM include increasing center of rotation lateralization and decreasing humeral cup depth. [11][12][13][14][15] Some parameters, however, have been reported to have more complicated relationships with ROM, depending on the specific motions studied. For instance, the increasing the neck-shaft angle has been reported to increase ROM in abduction, but at the cost of decreased impingement-free ROM in extension, flexion, adduction, and I/E rotation.…”

mentioning

confidence: 99%

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Development and Application of a Novel Metric to Characterize Comprehensive Range of Motion of Reverse Total Shoulder Arthroplasty

Elwell

Athwal

Willing

2019

Journal Orthopaedic Research

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Active range of motion (ROM) of reverse total shoulder arthroplasty (rTSA) can be limited by bony impingement, muscle inability, and joint instability. The aim of this study was to develop a novel metric representative of comprehensive ROM of rTSA, which is evaluated in the context of all three factors. It was hypothesized that the metric, termed global circumduction ROM (GC‐ROM), would capture differences resulting from directional changes in rTSA design parameters known to increase ROM. GC‐ROM was calculated for a set of 18 rTSA configurations with humeral polyethylene cup depths of 6 and 8.1 mm, glenosphere lateralization (GLat) distances of 0, 5, and 10 mm, and neck‐shaft angles (NSA) of 135°, 145°, and 155°. For any implant configuration, arm positions were defined by internal/external (IE) rotation angle and two spherical coordinates representing the elevation plane angle and elevation angle. At each IE rotation angle, incremental positions with variable elevation plane and elevation angles were checked for feasibility based on impingement, muscle ability, and risk of instability. Coordinates of feasible positions were mapped to unit spheres and connected to form regions, of which the surface area was calculated to represent allowable circumduction ROM. ROMs were averaged across all IE rotation angles to produce a single metric, GC‐ROM. The results showed that decreasing cup depth and increasing GLat and NSA increased GC‐ROM. In conclusion, a novel metric to characterize comprehensive ROM, evaluated based on several ROM‐limiting factors, was developed as a performance metric through which rTSA designs can be compared. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:880‐887, 2020

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Development and Application of a Novel Metric to Characterize Comprehensive Range of Motion of Reverse Total Shoulder Arthroplasty

Elwell

Athwal

Willing

2019

Journal Orthopaedic Research

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Effectiveness of Immersive Virtual Reality on Orthopedic Surgical Skills and Knowledge Acquisition Among Senior Surgical Residents

et al. 2020

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IMPORTANCEVideo learning prior to surgery is common practice for trainees and surgeons, and immersive virtual reality (IVR) simulators are of increasing interest for surgical training. The training effectiveness of IVR compared with video training in complex skill acquisition should be studied. OBJECTIVES To evaluate whether IVR improves learning effectiveness for surgical trainees and to validate a VR rating scale through correlation to real-world performance. DESIGN, SETTING, AND PARTICIPANTS This block randomized, intervention-controlled clinical trial included senior (ie, postgraduate year 4 and 5) orthopedic surgery residents from multiple institutions in Canada during a single training course. An intention-to-treat analysis was performed.

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Orientation of the Scapula in the Standing Position

Andro,

Garraud,

Deransart

et al. 2023

J of Ultrasound Medicine

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ObjectivesA new ultrasound‐based device is proposed to non‐invasively measure the orientation of the scapula in the standing position to consider this parameter for Total Shoulder Arthroplasty. The aim of this study was to assess the accuracy and reliability of this device.MethodsAccuracy was assessed by comparing measurements made with the ultrasound device to those acquired with a three‐dimensional (3D) optical localization system (Northern Digital, Canada) on a dedicated mechanical phantom. Three users performed 10 measurements on three healthy volunteers with different body mass (BMI) indices to analyze the reliability of the device by measuring the intra and interobserver variabilities.ResultsThe mean accuracy of the device was 0.9°± 0.7 (0.01–3.03), 1.3°± 0.8 (0.03–4.55), 1.9°± 1.5 (0.05–5.76), respectively, in the axial, coronal, and sagittal planes. The interobserver and intraobserver variabilities were excellent whatever the BMI and the users experience.ConclusionsThe device is accurate and reliable enough for the measurement of the scapula orientation in the standing position.

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Optimizing reverse shoulder arthroplasty component position in the setting of advanced arthritis with posterior glenoid erosion: a computer-enhanced range of motion analysis

Cited by 85 publications

References 30 publications

Development and Application of a Novel Metric to Characterize Comprehensive Range of Motion of Reverse Total Shoulder Arthroplasty

Development and Application of a Novel Metric to Characterize Comprehensive Range of Motion of Reverse Total Shoulder Arthroplasty

Effectiveness of Immersive Virtual Reality on Orthopedic Surgical Skills and Knowledge Acquisition Among Senior Surgical Residents

Orientation of the Scapula in the Standing Position

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