Related Experiment Video
Updated: Jul 30, 2025
08:15
Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
Published on: February 17, 2023
1.1K
Accuracy and Reliability of Computerized Surgical Planning Software in Anatomic Total Shoulder Arthroplasty
Yehia H Bedeir1,2, Eloy Tabeayo1, Te-Feng A Chou1
1Orthopedic Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, USA.
Cureus
|May 14, 2023
Summary
Preoperative CT-based planning for total shoulder arthroplasty showed good accuracy for glenoid components but less for humeral components. This planning method is reliable for surgeons at all training levels.
Area of Science:
- Orthopedic Surgery
- Medical Imaging
- Biomechanical Engineering
Background:
- Anatomic total shoulder arthroplasty (aTSA) is a common procedure for glenohumeral osteoarthritis.
- Accurate preoperative planning is crucial for successful aTSA outcomes.
- CT-based planning software offers potential for improved surgical precision.
Purpose of the Study:
- To assess the concordance between preoperative CT-based implant planning and actual surgical implantation in aTSA.
- To evaluate the agreement of preoperative plans among surgeons with varying levels of orthopedic training.
Main Methods:
- Retrospective analysis of 21 patients undergoing aTSA with preoperative CT scans.
- Four orthopedic surgeons performed preoperative planning using CT-based software.
- Concordance between planned and implanted components (glenoid size, backside radius, augmentation; humeral stem/nucleus size, head size, height, eccentricity) was calculated.
- Inter-rater agreement was assessed using the intra-class correlation coefficient (ICC).
Main Results:
- Overall concordance between planned and implanted components was 61.2%.
- Glenoid component augmentation (need and size) prediction showed high accuracy (83.3%).
- Humeral nucleus/stem size prediction was least accurate (42.9%).
- Interobserver agreement varied from poor to excellent across parameters, with head height showing the best agreement.
Conclusions:
- CT-based preoperative planning demonstrates higher accuracy for glenoid components compared to humeral components in aTSA.
- The software is particularly useful for determining glenoid component augmentation.
- The planning software exhibits high reliability, even for surgeons early in their training.
