Prothèse totale inversée de l’épaule et insuffisance de la coiffe des rotateurs : évaluation et approche de paramètres anatomiques prédictifs d’une bonne fonctionnalité à propos de 21 cas

Renaud, P; Wahab, Hassan; Bontoux, L.; Dauty, Marc; Rodet-Belarbi, Isabelle; Brégeon, C.

doi:10.1016/s0168-6054(01)00102-7

Cited by 28 publications

(4 citation statements)

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“…Using Grammont-style prostheses, Jobin et al 29 found deltoid lengthening to correlate with superior forward elevation, but degree of medialization did not correlate with ROM or outcome scores. One other small study 38 showed improved outcomes with increased “acromioepiphyseal distance” compared with the other side, whereas another similar study found no difference in clinical outcomes in regard to humeral lengthening 20 …”

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confidence: 99%

The influence of radiographic markers of biomechanical variables on outcomes in reverse shoulder arthroplasty

et al. 2019

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Background Controversy exists in reverse total shoulder arthroplasty in regard to variability in the center of rotation (COR), which modifies the superior-inferior position of the humerus to affect the acromiohumeral interval (AHI), and its effect on the deltoid lever arm (DLA), acromial index (AI), and critical shoulder angle (CSA). The purpose of this study was to investigate the variation in biomechanics and the association with patient-reported outcomes (PROs) and range of motion (ROM) measurements. Methods Radiographs, ROM, and 2-year PRO scores were retrospectively reviewed for 108 patients. Results There was large variability in preoperative and postoperative biomechanics. The COR was medialized 12.01 ± 4.8 mm. The CSA increased 2.64° ± 12.45°. The AHI increased 20.6 ± 9.80 mm. The DLA lengthened 21.21 ± 10.15 mm. The AI increased 0.009 ± 0.3. Postoperative AI positively correlated with American Shoulder and Elbow Surgeons score and Penn Shoulder Score ( P = .03). Specifically, a postoperative AI of 0.62 corresponded to American Shoulder and Elbow Surgeons score (72.5 ± 18.3 vs. 62.3 ± 24.7; P = .02) and Penn Shoulder Score (71.2 ± 21.4 vs. 61.8 ± 25.6; P = .05), an average 10 points higher than AI of <0.6. Also, a smaller postoperative CSA (<25°) correlated with improved forward elevation ( P = .02). Conclusions This is the first study that evaluates the variability of biomechanical factors and their impact on postoperative ROM and PROs. An increased AI and decreased CSA are associated with improved PROs in this study, and a smaller CSA is associated with better forward elevation. Change in the COR, AHI, or DLA, however, did not affect patient outcomes or ROM. Further study is warranted to determine the optimal position.

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confidence: 99%

The influence of radiographic markers of biomechanical variables on outcomes in reverse shoulder arthroplasty

et al. 2019

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“…On the contrary, too high implantation leads to not enough tension and leads to bad clinical outcome. Renaud et al [ 4 ] showed that with optimal positioning, rehabilitation is fairly short and easy. Thus, outcomes concerning pain and functional result were good.…”

Section: Discussionmentioning

confidence: 99%

“…It consisted of a humeral component and a glenoid resurfacing component [ 2 ]. In 1985, Paul Grammont developed a new concept; the reverse total shoulder arthroplasty for the treatment of a severely degenerated glenohumeral joint with nonreconstructible rotator cuff rupture [ 3 , 4 ]. Even if patients are satisfied with shoulder prosthesis [ 5 , 6 ] in terms of quality of life, functional outcomes, and benignity [ 4 , 7 ], it does not appear to be a long-lasting solution.…”

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confidence: 99%

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CT scan evaluation of glenoid bone and pectoralis major tendon: interest in shoulder prosthesis

Obert

Peyron

Boyer

et al. 2016

SICOT-J

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Introduction: The shoulder arthroplasty brings satisfaction to patients in terms of quality of life and indolence. However whether anatomic implant or reverse, it does not escape from the loosening of the glenoid component. Moreover, optimal implantation is required to ensure the functional outcome without shortening of the arm. The purpose of this study is obtain CT scan evaluation of the glenoid bone stock in order to optimize glenoid component implantation and obtain a reference to determine optimal humeral component placement in case of humeral proximal fracture. Materials and methods: Between 2010 and 2011 we have analyzed 200 intact shoulder’s CT. We measured maximal and minimal width in the transverse plane of the glenoid, the distance from the pectoralis major (PM) tendon to the humeral head, the greater tubercle, change of curvature and the anatomical neck. Results: Mean maximum width was 27.4 ± 3.4 mm and mean minimum width was 15.5 ± 2.8 mm. Distances between upper edge of PM tendon to: humeral head, greater tubercle, change of curvature and anatomical neck were respectively: 67.6 ± 9.98 mm, 57.8 ± 10.3 mm, 28.7 ± 9 mm, and 34.2 ± 9.7 mm. Conclusion: Our study has produced an assessment of glenoid bone stock for optimal positioning of the glenoid implant but also to obtain a reference to determine the ideal location of the humeral component in the case of proximal humerus fracture.

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Influence of Arm Lengthening in Reverse Shoulder Arthroplasty

Lädermann¹,

Denard²

2015

Reverse Shoulder Arthroplasty

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Prothèse totale inversée de l’épaule et insuffisance de la coiffe des rotateurs : évaluation et approche de paramètres anatomiques prédictifs d’une bonne fonctionnalité à propos de 21 cas

Cited by 28 publications

References 1 publication

The influence of radiographic markers of biomechanical variables on outcomes in reverse shoulder arthroplasty

The influence of radiographic markers of biomechanical variables on outcomes in reverse shoulder arthroplasty

CT scan evaluation of glenoid bone and pectoralis major tendon: interest in shoulder prosthesis

Influence of Arm Lengthening in Reverse Shoulder Arthroplasty

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