Experimental Validation of Computer-Simulated Glenoid Preparation for Total Shoulder Arthroplasty

2011 ◽  
Author(s):  
Charlie Yongpravat ◽  
Jonathan D. Lester ◽  
Alen Trubelja ◽  
R. Michael Greiwe ◽  
Comron Saifi ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Experimental Validation ◽  
Total Shoulder Arthroplasty ◽  
Three Dimensional ◽  
Surface Preparation ◽  
The Past ◽  
Implant Placement ◽  
Operative Planning ◽  
Glenoid Surface ◽  
Glenoid Loosening

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.

scholarly journals Short, Medium and Long Term Complications After Total Anatomical Shoulder Arthroplasty

2017 ◽  
Vol 11 (1) ◽  
pp. 1133-1141 ◽  
Author(s):  
T.M. Gregory ◽  
B. Boukebous ◽  
J. Gregory ◽  
J. Pierrart ◽  
E. Masemjean
Keyword(s):  
Survival Rate ◽  
Shoulder Arthroplasty ◽  
Inflammatory Arthritis ◽  
Total Shoulder Arthroplasty ◽  
Dynamic Approach ◽  
Term Survival ◽  
The Past ◽  
Clinical Conditions ◽  
Glenoid Loosening

Total shoulder arthroplasty (TSA) is an effective approach for the treatment of a variety of clinical conditions affecting the shoulder, including osteoarthritis, inflammatory arthritis and osteonecrosis, and the number of TSA implanted has grown exponentially over the past decade. This review gives an update of the major complications, mainly infections, instability and loosening, encountered after TSA, based on a corpus of recent publications and a dynamic approach: The review focuses on the causes of glenoid loosening, which account for 80% of the complication, and underlines the importance of glenoid positioning in the recovery of early shouder function and in the long term survival rate of TSA.

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 ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Three Dimensional ◽  
Glenoid Component ◽  
Planning Software ◽  
Operative Planning

Anatomic Total Shoulder Arthroplasty With a Stemless Humeral Component

2021 ◽  
Vol 1 (3) ◽  
pp. 263502542199712
Author(s):  
Jordan D. Walters ◽  
Stephen F. Brockmeier
Keyword(s):  
Bone Quality ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Complication Rates ◽  
Lesser Tuberosity ◽  
Critical Elements ◽  
Implant Placement ◽  
Humeral Component ◽  
Component Loosening ◽  
Deltopectoral Approach

Background: This technique video reviews anatomic total shoulder arthroplasty (TSA) with a stemless humeral component using a representative case example. Indications: Stemless TSA is indicated for patients with symptomatic glenohumeral arthritis typically younger than 65 years of age. Stemless TSA may be used for other glenohumeral degenerative conditions such as avascular necrosis or posttraumatic arthropathy, provided acceptable humeral bone quality is confirmed intraoperatively using a thumb-press test. Poor bone quality is the primary contraindication. Technique Description: Preoperatively, computed tomography is typically used for planning, and intraoperative navigation through magnetic resonance imaging is also useful. The procedure’s critical elements include beach chair positioning, standard deltopectoral approach with lesser tuberosity osteotomy (LTO), freehand proximal humeral osteotomy, perpendicular proximal humeral exposure and subsequent preparation over a central guidewire, stemless implant and humeral head sizing, perpendicular glenoid exposure and implant placement, and final humeral implantation with LTO repair/fixation. A phased rehabilitation protocol includes 6-week sling immobilization to protect the subscapularis/LTO repair and return to normal activities between 3 and 6 months postoperatively. Discussion/Conclusion: Stemless TSA shows promising early and mid-term outcomes with complication rates, including humeral loosening rates, similar to standard stemmed components. Potential complications include neurovascular injury, infection, glenoid or humeral component loosening, and rotator cuff failure.

scholarly journals Glenoid Loosening in Total Shoulder Arthroplasty

10.5772/53438 ◽  
2013 ◽  
Author(s):  
Nahum Rosenberg ◽  
Maruan Haddad ◽  
Doron Norm
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Glenoid Loosening

Comparison of Methods to Predict Scapular Notching From Radiographs After Reverse Total Shoulder Arthroplasty

2012 ◽  
Author(s):  
Heath B. Henninger ◽  
Michael D. Harris ◽  
Kristen R. Petersen ◽  
Robert T. Burks ◽  
Robert Z. Tashjian
Keyword(s):  
Bone Loss ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
A Priori ◽  
Stress Shielding ◽  
Reverse Total Shoulder Arthroplasty ◽  
Scapular Notching ◽  
Implant Placement ◽  
And Function ◽  
Reverse Total Shoulder

Scapular notching is a complication of reverse total shoulder arthroplasty (rTSA) that results in bone loss on the lateral border of the scapula. Notching has been reported in up to 86% of patients at 5 year follow-up [1], and is graded 1–4 as a function of progressive bone loss [2]. Notching may arise from impingement, erosion, periprosthetic osteolysis, stress shielding or a combination of these [1]. Glenosphere position can mitigate notching by limiting hardware impingement [3–5], but may increase the forces required to abduct the arm [6]. Clinicians might optimize patient range of motion and function via implant placement if susceptibility to notching was known a-priori.

Preoperative three-dimensional computer planning for reverse total shoulder arthroplasty and bone grafting for severe glenoid deformity

2020 ◽  
pp. 175857322090890
Author(s):  
Robert Z Tashjian ◽  
Lindsay Beck ◽  
Irene Stertz ◽  
Peter N Chalmers
Keyword(s):  
Shoulder Arthroplasty ◽  
Bone Grafting ◽  
Total Shoulder Arthroplasty ◽  
Three Dimensional ◽  
Reverse Total Shoulder Arthroplasty ◽  
Patient Specific ◽  
Computer Assisted ◽  
Patient Specific Instrumentation ◽  
Reverse Total Shoulder ◽  
Glenoid Erosion

Background Computer assisted planning without patient specific instrumentation may be utilized to guide reverse total shoulder arthroplasty baseplate placement. The purpose of this study was to determine the difference between planned and achieved inclination and retroversion correction with three-dimensional preoperative computer assisted planning in reverse total shoulder arthroplasty without patient specific instrumentation with bone grafting for severe glenoid erosion. Methods Preoperative three-dimensional computer assisted planning without patient specific instrumentation was performed on 15 patients undergoing primary reverse total shoulder arthroplasty with glenoid bone grafting for severe glenoid erosion. On preoperative and immediate postoperative computed tomography slices, two-dimensional retroversion and inclination were measured. Preoperative three-dimensional baseline retroversion and inclination and planned postoperative three-dimensional retroversion and inclination were measured. Planned and achieved version and inclination changes were compared. Results The planned and achieved retroversion corrections were 18° and 12°, respectively (p < 0.001). The planned and achieved inclination corrections were 11° and 11°, respectively (p = 0.803). Conclusions Three-dimensional computer assisted planning without patient specific instrumentation in the setting of reverse total shoulder arthroplasty with severe glenoid erosion requiring bone grafting can accurately guide baseplate placement. All cases in which failure to correct retroversion or inclination within 10° of planning occurred in patients with severe erosion (B3 or E3 glenoids), therefore patient specific guides may be warranted in these cases to improve accuracy of implantation. Level of evidence Level IV, retrospective case series.

Glenoid loosening and failure in anatomical total shoulder arthroplasty: is revision with a reverse shoulder arthroplasty a reliable option?

2012 ◽  
Vol 21 (3) ◽  
pp. 342-349 ◽  
Author(s):  
Barbara Melis ◽  
Nicolas Bonnevialle ◽  
Lionel Neyton ◽  
Christophe Lévigne ◽  
Luc Favard ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Reverse Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Glenoid Loosening

The influence of three-dimensional planning on decision-making in total shoulder arthroplasty

2017 ◽  
Vol 26 (8) ◽  
pp. 1477-1483 ◽  
Author(s):  
Birgit S. Werner ◽  
Robert Hudek ◽  
Klaus J. Burkhart ◽  
Frank Gohlke
Keyword(s):  
Decision Making ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Three Dimensional
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