TABLE 2.

Compressive Mechanical Properties of Articular Cartilage of the Glenoid and Humeral Head^a

	HA0, MPa	HA0.16, MPa	HA0.50, MPa	β
Glenoid
Anterior	0.229 ± 0.172	0.351 ± 0.230	4.974 ± 2.660	2.002 ± 0.906b
Central	0.352 ± 0.432	0.534 ± 0.655	5.945 ± 7.050	1.458 ± 0.664b
Inferior	0.295 ± 0.265	0.460 ± 0.447	2.248 ± 1.900	1.349 ± 1.170
Posterior	0.328 ± 0.211	0.488 ± 0.301	5.057 ± 2.960b	1.560 ± 0.654
Superior	0.367 ± 0.173	0.543 ± 0.244	5.111 ± 2.460b	1.393 ± 0.450b
Overall	0.319 ± 0.118	0.482 ± 0.184	4.796 ± 1.720b	1.542 ± 0.369b
Humeral head
Anterior	0.279 ± 0.210	0.400 ± 0.309	2.930 ± 2.620	1.047 ± 0.341b
Central	0.370 ± 0.181	0.516 ± 0.261	3.184 ± 2.130	0.910 ± 0.248b
Inferior	0.303 ± 0.130	0.436 ± 0.182	3.701 ± 1.860	1.251 ± 0.785
Posterior	0.320 ± 0.168	0.449 ± 0.228	2.909 ± 1.300b	0.968 ± 0.357
Superior	0.318 ± 0.100	0.445 ± 0.140	2.813 ± 1.080b	0.978 ± 0.226b
Overall	0.316 ± 0.119	0.447 ± 0.170	3.105 ± 1.280b	1.041 ± 0.285b

^aData are presented as mean ± SD.

^bStatistically significant differences between the glenoid and humeral head.