https://link.springer.com/article/10.1007/BF02588357

Die gebräuchliche röntgenologische Bestimmung des Antetorsionswinkels nach Dunn und Rippstein als Maß für eine Drehfehlstellung stößt bei posttraumatischen Achsenfehlstellungen, Weichteilkontrakturen und schmerzhaften Bewegungseinschränkungen wegen der erforderlichen exakten Lagerungstechnik auf erhebliche Schwierigkeiten. Mit Hilfe der Ganzkörpercomputertomographie ist dagegen eine rasche, lagerungsunabhängige und sichere Bestimmung des projizierten AT-Winkels problemlos möglich. I

The usual X-ray determination of the anteversion angle in the technique of Dunn and Rippstein as a measure for torsional deformities is often very difficult, because of the exact positioning conditions of patients with posttraumatic axial deformities, soft tissue contractures and painful motility restrictions. With the total body computertomography we have a safe and quick technique, independent of the patient's positioning, to determine the anteversion angle without problems. In comparing the two sides, the rotatonal deformity can be recognized and its extent can exactly be measured.

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Note added at 51 minutos (2023-10-29 15:39:47 GMT)
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here = "rotational deformity"

https://www.ifssh.info/TerminologyPdfs/Chapter-3.pdf

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Note added at 55 minutos (2023-10-29 15:44:03 GMT)
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Abstract
The pathogenesis of idiopathic scoliosis is still a matter of debate as its common cause has not been found. But some basic principles of its onset and progression do exist. The curvature of the spine is always accompanied by rotation of the vertebrae and rib cage. If we want to explain the principles governing scoliosis onset and progression, we should answer some questions. First, why is side curvature of the spine always accompanied by rotation of the rib cage and vertebrae and vertebral rotation is maximal at the curve apex? Second, is structural scoliosis fixed by primary bone growth in growth plates of the vertebrae or by bone remodeling by which bones adapt to external loads?



so rotation deformity of the rib cage?