The Compendium of Caraka 3.2.12_1

3.2.12_1

atimātrapraduṣṭāśca doṣāḥ praduṣṭāmabaddhamārgāstiryaggacchantaḥ kadācideva kevalamasya śarīraṃ daṇḍavat stambhayanti, &tatastaṃ daṇḍālasakamasādhyaṃ bruvate/

And the excessively vitiated doshas, having their passages blocked by the vitiated āma, moving transversely, sometimes stiffen his whole body like a staff; hence they call it daṇḍālasaka, which is incurable.