Kowalczyk Marek, Wall Andrzej, Turek Tomasz, Kulej Mirosław, Scigała Krzysztof, Kawecki Jerzy
Katedra i Klinika Ortopedii i Traumatologii Narzadu Ruchu Akademii Medycznej, Wrocław.
Ortop Traumatol Rehabil. 2007 Mar-Apr;9(2):187-97.
Tibia shaft fractures are among the most common fractures. However, the incidence of tibia fractures does not increase in the elderly. Osteoporotic bone resorption is possibly compensated for by periosteal apposition, which improves the mechanical properties of the bone. The purpose of this study was to identify a correlation between geometric indices of transverse bone scans and radiologic bone density based in CT studies.
12 human cadaver tibiae were CT examined. Radiological density in Hounsfield units was evaluated in transverse bone scans taken at the junction of the distal and middle third of the tibial shaft. The average and maximum radiological density and area of cortical bone were evaluated.
Average radiological bone density decreased with age. This was not accompanied by a corresponding increase in cortical bone area.
The study did not provide direct confirmation that age-related osteoporotic bone resorption is compensated for by periosteal apposition.
胫骨干骨折是最常见的骨折之一。然而，老年人胫骨骨折的发生率并未增加。骨质疏松性骨吸收可能通过骨膜增生得到补偿，这改善了骨骼的力学性能。本研究的目的是在CT研究中确定横向骨扫描的几何指标与放射学骨密度之间的相关性。
对12具人类尸体胫骨进行CT检查。在胫骨远端和中三分之一交界处的横向骨扫描中评估亨氏单位的放射学密度。评估皮质骨的平均和最大放射学密度以及面积。
平均放射学骨密度随年龄下降。这并未伴随着皮质骨面积的相应增加。
该研究未提供直接证据证实与年龄相关的骨质疏松性骨吸收通过骨膜增生得到补偿。
