THE RELATIONSHIP BETWEEN HEAD-NECK-SHAFT ANGLE, CALCAR WIDTH, ARTICULAR CARTILAGE THICKNESS AND BONE VOLUME IN ARTHROSIS OF THE HIP

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Abstract
The thickness of articular cartilage and the macroscopic and morphometric chararcteristics of bone in the proximal femur were assesses in a group of 28 surgically-treated patients with advanced idiopathic oestearthrosis and compared with the findings in a group of 16 non-arthrotic fermora obtained at autopsy. In arthrosis, the BMI was increases, cartilage thickness aat two principal stress sites was found to be significantly reduced, and the femoral head-neck-shaft angle was reduced. The calcar width of the cortical bone in the femur was unchanged. Bone Volume was increased at the principal compressive region and diminished at both of the tensile regions. Regressions analysis showed that in arthrosis calcar width was dependent on BMI and bone voloume in the medical principal compressive region of the proximal femur. Futhermore, the volume of bone medial to the greater trochanter was significantly correlated with BMI.

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