Effect of scapular pillar anatomy on scapular impingement in adduction and rotation after reverse shoulder arthroplasty

Berhouet, Julien; Garaud, P.; Slimane, Mohamed; Nicot, J.; Banah, J.; Waynberger, E.; Favard, Luc

doi:10.1016/j.otsr.2014.03.021

Cited by 11 publications

(7 citation statements)

References 24 publications

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“…Previous studies have demonstrated that postoperative active ROM was determined by numerous factors. The type of implant, 5 , 17 , 30 the morphology of the scapula, 31 and pre-, 32 , 33 intra-, 34 and postoperative 16 , 21 soft tissue considerations are known to be contributors. The present study revealed that the type of impingement induced by the reverse design is another key element.…”

Section: Discussionmentioning

confidence: 99%

“…This is important as changes related to human scapular morphology, such as scapular neck or critical shoulder angles, also impact the tendency towards impingement. 31 However, the number of specimen did not allow for the comparison of the different sizes of glenospheres. Another limitation of this study is the partial omission of the humeral sided wear.…”

Section: Discussionmentioning

confidence: 99%

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Scapular Notching on Kinematic Simulated Range of Motion After Reverse Shoulder Arthroplasty Is Not the Result of Impingement in Adduction

et al. 2015

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Scapular Notching on Kinematic Simulated Range of Motion After Reverse Shoulder Arthroplasty Is Not the Result of Impingement in Adduction

et al. 2015

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“…This unique morphological study prevented us from analyzing patient-related factors that may impact post-operative ROM. Normal or pathologic changes related to human scapular morphology may also lead to significant differences [24]. Another limitation of this study is the omission of soft tissue tension which can restrict ROM, particularly in revision or post-traumatic cases.…”

Section: Strengths and Limitationsmentioning

confidence: 96%

Effect of humeral stem design on humeral position and range of motion in reverse shoulder arthroplasty

Lädermann

Denard

Boileau³

et al. 2015

International Orthopaedics (SICOT)

184

104

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Purpose The impacts of humeral offset and stem design after reverse shoulder arthroplasty (RSA) have not been well-studied, particularly with regard to newer stems which have a lower humeral inclination. The purpose of this study was to analyze the effect of different humeral stem designs on range of motion and humeral position following RSA. Methods Using a three-dimensional computer model of RSA, a traditional inlay Grammont stem was compared to a short curved onlay stem with different inclinations (155°, 145°, 135°) and offset (lateralised vs medialised). Humeral offset, the acromiohumeral distance (AHD), and range of motion were evaluated for each configuration. Results Altering stem design led to a nearly 7-mm change in humeral offset and 4 mm in the AHD. Different inclinations of the onlay stems had little influence on humeral offset and larger influence on decreasing the AHD. There was a 10°decrease in abduction and a 5°increase in adduction between an inlay Grammont design and an onlay design with the same inclination. Compared to the 155°mod-el, the 135°model improved adduction by 28°, extension by 24°and external rotation of the elbow at the side by 15°, but led to a decrease in abduction of 9°. When the tray was placed medially, on the 145°model, a 9°loss of abduction was observed. Conclusions With varus inclination prostheses (135°and 145°), elevation remains unchanged, abduction slightly decreases, but a dramatic improvement in adduction, extension and external rotation with the elbow at the side are observed.

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“…Few studies have examined scapular morphology related to RSA and scapular notching (Table ). Simovitch et al () introduced the concept of SNA measurement that was later reproduced by Berhouet et al (), Sabesan et al (), Fortun et al () and by this study. Comparison can be seen in Table .…”

Section: Discussionmentioning

confidence: 52%

3D image‐based morphometric analysis of the scapular neck length in subjects undergoing reverse shoulder arthroplasty

et al. 2017

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Scapular notching after RSA may, in part, be related to a patient's scapular morphology. The purpose of this study was to develop a novel 3 D measurement technique to describe infraglenoid tubercle morphometry. We hypothesize that the parameters describing infraglenoid tubercle would be normally distributed and would correlate with individual's demographics and glenoid morphometry. A group of 110 subjects treated with RSA were evaluated. Scapular geometry was obtained from pre-operative CT scans. The scapular neck length was defined in anterior and posterior view as the orthogonal distance between the glenoid surface and (a) the point of most significant change of curvature on lateral pillar; (b) the most lateral portion of the infraglenoid tubercle. Scapular neck angle, maximum anatomical adduction angle, glenoid width, height and version were also measured. Scapular neck length measured in the anterior and posterior view were normally distributed with mean values of 17.6 6 2.8 mm and 7.9 6 2.5 mm, respectively. Scapular neck angle was on average 112.4 6 10.68 and maximal adduction angle was 17.6 6 2.88. No significant associations between infraglenoid tubercle morphometric parameters, demographic, glenoid size or version were identified. Improved understanding of the patient-specific risk factors for scapular notching will help surgeons with pre-surgical planning and implant selection. Parametrization of the infraglenoid tubercle presented in this study showed normal distribution in the population unrelated to gender, side or demographics. The size of the infraglenoid tubercle is a unique trait, pre-operative evaluation of the scapular neck should be always warranted to decrease the incidence of post-operative notching. Clin. Anat. 31:43-55,

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Effect of scapular pillar anatomy on scapular impingement in adduction and rotation after reverse shoulder arthroplasty

Abstract: III, experimental study.

Cited by 11 publications

References 24 publications

Scapular Notching on Kinematic Simulated Range of Motion After Reverse Shoulder Arthroplasty Is Not the Result of Impingement in Adduction

Scapular Notching on Kinematic Simulated Range of Motion After Reverse Shoulder Arthroplasty Is Not the Result of Impingement in Adduction

Effect of humeral stem design on humeral position and range of motion in reverse shoulder arthroplasty

3D image‐based morphometric analysis of the scapular neck length in subjects undergoing reverse shoulder arthroplasty

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