Proper benefit of a three dimensional pre-operative planning software for glenoid component positioning in total shoulder arthroplasty

2018 ◽  
Vol 42 (12) ◽  
pp. 2897-2906 ◽  
Author(s):  
Adrien Jacquot ◽  
Marc-Olivier Gauci ◽  
Jean Chaoui ◽  
Mohammed Baba ◽  
Pierric Deransart ◽  
...  
Author(s):  
Charlie Yongpravat ◽  
Jonathan D. Lester ◽  
Alen Trubelja ◽  
R. Michael Greiwe ◽  
Comron Saifi ◽  
...  

The use of three-dimensional (3D) computer simulations for pre-operative planning of total shoulder arthroplasty (TSA) has greatly increased in the past decade [1,2]. These studies have primarily focused on optimizing glenoid resurfacing to elucidate the factors involved in glenoid loosening, the most common cause of TSA failure [3,4]. While finite element analyses have investigated the effects of glenoid resurfacing parameters such as implant placement and depth of reaming on the stresses associated with the glenoid/cement/implant construct, none have determined if their method for simulating glenoid surface preparation is physically representative or accurate. In TSA, the first step in glenoid resurfacing is reaming the glenoid surface in preparation for the placement of the glenoid implant. The purpose of this study was to validate the volume removed as determined by computer simulated reaming against the volume removed by ream of cadaveric scapulae.


Dose-Response ◽  
2020 ◽  
Vol 18 (4) ◽  
pp. 155932582097083
Author(s):  
Fabio Moreschini ◽  
Giovanni Battista Colasanti ◽  
Carlo Cataldi ◽  
Lorenzo Mannelli ◽  
Nicola Mondanelli ◽  
...  

Reverse total shoulder arthroplasty (RSA) successfully restores shoulder function in different conditions. Glenoid baseplate fixation and positioning seem to be the most important factors influencing RSA survival. When scapular anatomy is distorted (eccentric osteoarthrirtis, rotator cuff arthropathy), optimal baseplate positioning and secure screw purchase can be challenging. The aim of this study was to evaluate whether CT-based pre-operative planning, integrated with intra-operative navigation could improve glenoid baseplate fixation and positioning by increasing screw length, reducing number of screws required to obtain fixation and increasing the use of augmented baseplate to gain the desired positioning. Twenty patients who underwent navigated RSA were compared retrospectively with 20 patients operated on with a conventional technique. All the procedures were performed by the same surgeon, using the same implant. Mean screw length was significantly longer in the navigation group (35.5 ± 4.4 mm vs 29.9 ± 3.6 mm; p = .001). Significant higher rate of optimal fixation using 2 screws only (17 vs 3 cases, p = .019) and higher rate of augmented baseplate usage (13 vs 4 cases, p = .009) was also present in the navigation group. Pre-operative CT-based planning integrated with intra-operative navigation can improve glenoid component positioning and fixation, possibly leading to an improvement of RSA survival.


2013 ◽  
Vol 95 (24) ◽  
pp. 2205-2212 ◽  
Author(s):  
Anastasios Papadonikolakis ◽  
Moni Blazej Neradilek ◽  
Frederick A Matsen

2018 ◽  
Vol 11 (2) ◽  
pp. 140-148 ◽  
Author(s):  
Alessandro Castagna ◽  
Raffaele Garofalo

Anatomic total shoulder arthroplasty (TSR) has been shown to generate good to excellent results for patients with osteoarthritis and a functioning rotator cuff. Many studies have reported that the glenoid component loosening and failure remain the most common long-term complication of total shoulder arthroplasty. The approach to glenoid component is critical because a surgeon should consider patient-specific anatomy, preserving bone stock and joint line restoration, for a good and durable shoulder function. Over the years, different glenoid design and materials have been tried in various configurations. These include cemented polyethylene, uncemented metal-backed and hybrid implants. Although advances in biomechanics, design and tribology have improved our understanding of the glenoid, the journey of the glenoid component in anatomic total shoulder arthroplasty has not yet reached its final destination. This article attempts to describe the evolution of the glenoid component in anatomic TSR and current practice.


2012 ◽  
Vol 21 (12) ◽  
pp. 2860-2866 ◽  
Author(s):  
Eduardo M. Suero ◽  
Musa Citak ◽  
Darrick Lo ◽  
Aaron J. Krych ◽  
Edward V. Craig ◽  
...  

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