Neck shaft angle in reverse shoulder arthroplasty: 135 vs. 145 degrees at minimum 2-year follow-up

Neyton, Lionel; Nigues, Ana; McBride, Andrew; Sanctis, Edoardo Giovannetti de

doi:10.1016/j.jse.2022.12.014

Cited by 9 publications

(1 citation statement)

References 38 publications

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“…The mechanical breakage of components that was observed mainly in constrained prostheses has ushered in implant designs with less constraints. Component impingement, particularly scapular notching, has decreased because of a reduced neck shaft angle in RSA and by achieving adequate glenoid lateralization and positioning [46,47]. Scapular fractures in RTSA are becoming less frequent by improving bone health, by correcting glenoid baseplate screw length, and by avoiding excessive deltoid tension [48,49].…”

Section: Discussionmentioning

confidence: 99%

Common Factors in Shoulder and Hip Arthroplasty Implant Failures: A Historical Review

Andrews,

Layuno-Matos,

Frankle

2024

JCM

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In this era of subspecialty care in orthopedics, iterations of implant design can occur in a silo which then precludes gaining knowledge from failures of implant design that may have occurred in different subspecialties. This literature review describes the history of failures in hip and shoulder arthroplasties with the purpose of identifying similar factors that led to previous implant failures. A review of the literature was performed by two reviewers assessing articles that described failed hip and shoulder arthroplasty systems over time. We identified and analyzed 53 implant failures—23 in hip arthroplasty and 30 in shoulder arthroplasty. These failures were categorized as material, mechanical, and technical. In hip arthroplasty, 48% were material, 39% mechanical, and 13% technical failures. In shoulder arthroplasty, the distribution was 10% material, 70% mechanical, and 20% technical failures. The distribution of these failures highlights similar and sometimes repeated failure mechanisms between subspecialties. This accentuates the importance of a collaborative approach to improve future arthroplasty designs.

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Section: Discussionmentioning

confidence: 99%

Common Factors in Shoulder and Hip Arthroplasty Implant Failures: A Historical Review

Andrews,

Layuno-Matos,

Frankle

2024

JCM

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A reduced scapulo-humeral angle contributes to the development of scapular notching in reverse total shoulder arthroplasty

Minoli,

Travi,

Compagnoni

et al. 2024

International Orthopaedics (SICOT)

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Purpose Scapular Notching (SN) is one of the most common postoperative complications for a patient after Reverse Total Shoulder Arthroplasty (RTSA). Despite employing various strategies to mitigate SN risk, the overall incidence remains far from zero. This article introduces a new risk factor, the scapulo-humeral angle (SHA), as a key element influencing the risk for SN. Methods A retrospective analysis was conducted on all patients who underwent RTSA for rotator cuff arthropathy at the study centre. The preoperative SHA was measured, and the presence of SN was investigated and graded using the Nerot classification at the latest follow-up. Results 42 patients were included. 12 presented SN (incidence 28.5%). A statistically significant Pearson coefficient correlation between pre-operative SHA and the incidence of SN was observed (r= -0.6954; 95% C.I. -0,8250 to -0,4963; p < 0.0001). A statistically significant Pearson coefficient correlation was also found between the degree of SN and the pre-operative SHA (r= -0,7045; 95% C.I. -0,8306 to -0,5096; P value (two-tailed) < 0,0001, alpha 0.05). Conclusions The primary finding is a statistically significant correlation between a reduced preoperative SHA and an increased incidence of postoperative SN. The secondary finding is that a smaller preoperative SHA is associated with a more severe degree of SN A SHA cut-off of 50° distinguished patients at high risk of SN from those at low risk. All patients with an SHA below 50° developed SN (10/10), whereas only 6.25% of patients with an SHA exceeding 50° experienced SN (2/32).

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Surgical Parameters During Reverse Shoulder Arthroplasty Predict Post-Surgical Kinematics During the Hand-to-Head Motion

Rai,

LeVasseur,

Kane

et al. 2024

Ann Biomed Eng

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Neck shaft angle in reverse shoulder arthroplasty: 135 vs. 145 degrees at minimum 2-year follow-up

Cited by 9 publications

References 38 publications

Common Factors in Shoulder and Hip Arthroplasty Implant Failures: A Historical Review

Common Factors in Shoulder and Hip Arthroplasty Implant Failures: A Historical Review

A reduced scapulo-humeral angle contributes to the development of scapular notching in reverse total shoulder arthroplasty

Surgical Parameters During Reverse Shoulder Arthroplasty Predict Post-Surgical Kinematics During the Hand-to-Head Motion

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