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The Journal of Bone & Joint Surgery British Volume
Vol. 73-B, Issue 5 | Pages 795 - 801
1 Sep 1991
Jeffery A Blunn G Archer C Bentley G

The three-dimensional architecture of bovine articular cartilage collagen and its relationship to split lines has been studied with scanning electron microscopy. In the middle and superficial zones, collagen was organised in a layered or leaf-like manner. The orientation was vertical in the intermediate zone, curving to become horizontal and parallel to the articular surface in the superficial zone. Each leaf consisted of a fine network of collagen fibrils. Adjacent leaves merged or were closely linked by bridging fibrils and were arranged according to the split-line pattern. The surface layer (lamina splendens) was morphologically distinct. Although ordered, the overall collagen structure was different in each plane (anisotropic) a property described in previous morphological and biophysical studies. As all components of the articular cartilage matrix interact closely, the three-dimensional organisation of collagen is important when considering cartilage function and the processes of cartilage growth, injury and repair.

The Journal of Bone & Joint Surgery British Volume
Vol. 71-B, Issue 4 | Pages 549 - 553
1 Aug 1989
Roach H Shearer Archer C