Contemporary English Version
and later has to use a stick when walking outside, you must pay for the loss of time and do what you can to help until the injury is completely healed. That's your only responsibility.

New American Bible
the one who struck the blow shall be acquitted, provided the other can get up and walk around with the help of his staff. Still, he must compensate him for his recovery time and make provision for his complete healing.

Douay-Rheims Bible
If he rise again and walk abroad upon his staff, he that struck him shall be quit, yet so that he make restitution for his work, and for his expenses upon the physicians.

If he rise again and walk abroad upon his staff, he that struck him shall be quit, yet so that he make restitution for his work, and for his expenses upon the physicians.

upon his staff

2 Samuel 3:29 And may it come upon the head of Joab, and upon all his father's house: and let there not fail from the house of Joab one that hath an issue of seed, or that is a leper, or that holdeth the distaff, or that falleth by the sword, or that wanteth bread.

Zechariah 8:4 Thus saith the Lord of hosts: There shall yet old men and old women dwell in the streets of Jerusalem: and every man with his staff in his hand through multitude of days.

only he shall pay.