Computed tomography-osteoabsorptiometry for assessing the density distribution of subchondral bone as a measure of long-term mechanical adaptation in individual joints
✍ Scribed by Magdalena Müller-Gerbl; Reinhard Putz; Norbert Hodapp; Erik Schulte; Berthold Wimmer
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 971 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0364-2348
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✦ Synopsis
To estimate subchondral mineralisation patterns which represent the long-term loading history of individual joints, a method has been developed employing computed tomography (CT) which permits repeated examination of living joints. The method was tested on 5 knee, 3 sacroiliac, 3 ankle and 5 shoulder joint,; and then investigated with X-ray densitometry. A CT absorptiometric presentation and maps of the area distribution of the subchondral bone density areas were derived using an image analyser. Comparison of the results from both X-ray densitometry and CTabsorptiometry revealed almost identical pictures of distribution of the subchondral bone density. The method may be used to examine subchondral mineralisation as a measure of the mechanical adaptability of joints in the living subject.