ArticleJSES international2020
Influence of reverse total shoulder arthroplasty baseplate design on torque and compression relationship.
Article in JSES international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 5 citations in OpenAlex.
- Morphometry-based design and finite element assessment of primary stability in glenoid baseplate fixation for reverse shoulder arthroplasty for the Indian population.Frontiers in bioengineering and biotechnology · 2026Article
- Surgical Outcomes of Weight-Bearing Shoulders: Arthroscopic Rotator Cuff Repair and Reverse Shoulder Arthroplasty.Clinics in orthopedic surgery · 2025Article
- Reverse total shoulder glenoid component inclination affects glenohumeral kinetics during abduction: a cadaveric study.Journal of shoulder and elbow surgery · 2022Article
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Authors and funding
6 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundA linear relationship between baseplate insertion torque and compression force in reverse shoulder arthroplasty (RSA) baseplates with central screw design has been recently established. In this study, we evaluated 3 different baseplate designs and their influence on the torque-compression relationship.
methodsThree different RSA baseplate designs were evaluated through biomechanical testing using a glenoid vault, bone surrogate model. A digital torque gauge was used to measure insertion torque applied to the baseplate, whereas compression data were collected continuously from a load cell. Additionally, 2 predictive models were developed to predict the compression forces of each baseplate design at varying levels of torque.
resultsA linear relationship was found between baseplate compression and insertion torque for all 3 baseplate designs. Both the monoblock and 2-piece locking designs achieved the goal torque of 6.8 Nm, whereas the 2-piece nonlocking design did not due to material strip-out. No significant difference in maximum compression was found between the monoblock and 2-piece locking designs. However, the 2-piece nonlocking design achieved significantly higher compression. Both predictive models were shown to adequately predict compressive forces at different torque inputs for the monoblock and 2-piece locking designs but not the 2-piece nonlocking design.
conclusionThe torque-compression relationship of a central screw baseplate is significantly affected by baseplate design. A 2-piece nonlocking baseplate reaches higher compression levels and risks material strip-out at lower insertional torques compared with a monoblock and 2-piece locking design. This has implications both on component design and on surgeon tactile feedback during surgery.
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