en_tn_condensed/exo/21/18.md

is confined to his bed

AT: "cannot get out of bed" or "has to stay in bed" (See: rc://en/ta/man/translate/figs-activepassive)

recovers

"gets better"

staff

"walking stick"

the loss of his time

This refers to a situation where he cannot work to earn money. AT: "the time he could not work"

complete recovery

"medical costs" or "costs for healing" (UDB)