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Table 1 Glenoid bone strains during compressive loading

From: Influence of Glenosphere and baseplate parameters on Glenoid bone strains in reverse shoulder Arthroplasty

 Inferior sensorSuperior sensorAnterior sensorPosterior sensor
Baseplate size
Small43.3με (− 247.6 to 334.1)42.8με (−7.4 to 93.1)−38.5με (− 184.2 to 128.2)− 7.4με (− 87.3 to 67.0)
Medium147.6με (− 276.6 to 571.8)−50.4με (− 120.5 to 19.6)−153.8με (− 370.8 to − 40.0)113.7με (− 78.9 to 183.7)
Large198.4με (− 331.1 to 727.8)−9.4με − 69.6 to 50.9−7.5με (− 179.2 to 153.9)51.5με (−25.6 to 123.2)
Glenosphere size
36101.5με (− 399.7 to 602.7)2.0με (− 40.2 to 44.2)−51.4με (− 188.3 to 19.7)6.7με (−41.3 to 93.4)
3935.8με (− 310.4 to 382.1)19.1με (−18.3 to 56.6)−93.4με (− 181.9 to 20.5)19.4με (−37.7 to 84.0)
42142.1με (− 147.5 to 431.8)−3.2με (− 39.9 to 33.6)−70.9με − 177.4 to 24.126.3με (−45.6 to 74.4)
Glenosphere design
Std149.0με (− 217.8 to 515.9)14.1με (− 24.5 to 52.8)− 158.7με (− 197.6 to 6.0)40.4με (− 53.7 to 71.4)
2.5 Inf140.3με (− 181.7 to 462.3)18.3με (− 18.9 to 55.6)−75.6με (− 184.4 to 17.6)60.7με (− 29.3 to 92.0)
4 Lat29.0με (− 281.2 to 339.2)−13.1με (− 49.9 to 23.7)−80.4με (− 164.4 to 37.3)55.0με (−44.7 to 75.4)
Baseplate position
Inferior−0.4με (− 275.2 to 274.4)37.0με (− 6.6 to 80.5)−147.3με (− 137.3 to 82.5)50.7με (−33.7 to 102.8)
Superior236.5με (− 81.9 to 554.8)−34.0με (− 79.0 to 10.9)−36.5με (− 255.0 to − 32.2)6.0με (− 71.7 to 72.1)
  1. Presented values (microstrains; με) for each variable (e.g. baseplate size: small, etc.) at each sensor represent the mean strain value measured across all possible testing combinations of baseplate size, glenosphere size, glenosphere design, and baseplate position. Data is presented as mean principal strains and 95% confidence intervals. Std Standard glenosphere, 2.5 Inf 2.5 mm inferiorized glenosphere, 4 Lat 4 mm lateralized glenosphere. Measured strains did not show any significant differences across tested baseplate and glenosphere design, size, or positioning combinations (p > 0.05 for all sensors). Furthermore, linear regression analysis did not identify any of the evaluated parameters as an independent influential factor for strains (p > 0.05 for all sensors)