Comparing conventional and computer-assisted surgery baseplate and screw placement in reverse shoulder arthroplasty

Placement of the glenoid component in reverse total shoulder arthroplasty (rTSA) is of paramount importance and can affect a patient’s range of motion postoperatively. Preoperative planning and computer assisted surgery (CAS) can improve upon glenoid placement, but such systems for rTSA have experienced limited commercial success. Postoperative surgical reports from the first 1702 clinical cases of a commercially available CAS rTSA system were collected and analyzed for implant selection, implant placement, and incision start to incision close operative time, and compared to similar date cohorts for non-navigated cases. Navigated rTSA cases had a significantly longer incision time than non-navigated cases. Augmented glenoid components were used in a much higher percentage of navigated cases than non-navigated cases, suggesting that augmented glenoid components provide utility for correcting pathologic glenoid wear. The average resultant version and inclination of the implanted component increased with the size of augment used, suggesting there may not be a clear consensus on optimal version or inclination. Long term clinical follow up will need to be collected to determine if preoperative planning combined with more precise and accurate glenoid component positioning leads to improved clinical outcomes and implant longevity.

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The use of computer-assisted surgery as an educational tool for the training of orthopedic surgery residents in pedicle screw placement: a pilot study and survey among orthopedic residents

Canadian Journal of Surgery ◽

10.1503/cjs.012115 ◽

2016 ◽

Vol 59 (6) ◽

pp. 391-398 ◽

Cited By ~ 2

Author(s):

Ahmed Aoude ◽

Hamzah Alhamzah ◽

Maryse Fortin ◽

Peter Jarzem ◽

Jean Ouellet ◽

...

Keyword(s):

Pilot Study ◽

Pedicle Screw ◽

Orthopedic Surgery ◽

Computer Assisted Surgery ◽

Screw Placement ◽

Computer Assisted ◽

Educational Tool ◽

Pedicle Screw Placement

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Current Concepts in Humeral Component Design for Anatomic and Reverse Shoulder Arthroplasty

Journal of Clinical Medicine ◽

10.3390/jcm10215151 ◽

2021 ◽

Vol 10 (21) ◽

pp. 5151

Author(s):

Joaquin Sanchez-Sotelo

Keyword(s):

Shoulder Arthroplasty ◽

Reverse Shoulder Arthroplasty ◽

Computer Assisted ◽

Optimal Plan ◽

Humeral Component ◽

Component Design ◽

History Of ◽

Preoperative Plan ◽

Short Stems ◽

Tissue Tension

The history of humeral component design has evolved from prostheses with relatively long stems and limited anatomic head options to a contemporary platform with short stems and stemless implants with shared instrumentation and the ability to provide optimal shoulder reconstruction for both anatomic and reverse configurations. Contemporary humeral components aim to preserve the bone, but they are potentially subject to malalignment. Modern components are expected to favorably load the humerus and minimize adverse bone reactions. Although there will likely continue to be further refinements in humeral component design, the next frontiers in primary shoulder arthroplasty will revolve around designing an optimal plan, including adequate soft tissue tension and providing computer-assisted tools for the accurate execution of the preoperative plan in the operating room.

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Clinical Use of a Computer Assisted Anatomic Total Shoulder Arthroplasty System: An Analysis of 574 Cases

10.29007/kld9 ◽

2019 ◽

Author(s):

Alexander Greene ◽

Sandrine Polakovic ◽

Christopher Roche ◽

Yifei Dai

Keyword(s):

Clinical Outcomes ◽

Shoulder Arthroplasty ◽

Preoperative Planning ◽

Total Shoulder Arthroplasty ◽

Computer Assisted Surgery ◽

Computer Assisted ◽

Glenoid Component ◽

Implant Placement ◽

Implant Selection

Accurate reproduction of glenohumeral anatomy during anatomic total shoulder arthroplasty (aTSA) has been shown to correlate with positive clinical outcomes. Preoperative planning and computer assisted surgery (CAS) can improve upon glenoid placement, but such systems for aTSA have experienced limited commercial success. Postoperative surgical reports from the first 574 clinical cases of a commercially available CAS aTSA system were collected and analyzed for implant selection, implant placement, and incision start to incision close operative time, and compared to similar date cohorts for non-navigated cases. Navigated aTSA cases had a significantly longer incision time than non-navigated cases. Augmented glenoid components were used in a much higher percentage of navigated cases than non-navigated cases, suggesting that augmented glenoid components provide utility for correcting pathologic glenoid wear. The average resultant version of the implanted component increased with the size of augment used, suggesting there may not be a clear consensus on optimal retroversion. term clinical follow up will need to be collected to determine if preoperative planning combined with more precise and accurate glenoid component positioning leads to improved clinical outcomes and implant longevity.

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