The man on the shroud has no broken bones. In particular, none of the bones in the legs are broken.
No broken bones are evident on the body image.
This is especially relevant since breaking the leg bones was frequently done for crucified victims to hasten their death.
Frequently, the legs of the person executed were broken or shattered with an iron club, an act called crurifragium, which was also frequently applied without crucifixion to slaves. This act hastened the death of the person but was also meant to deter those who observed the crucifixion from committing offenses.
This aligns with the passage:
John 19:31-33 (KJV)
31 The Jews therefore, because it was the preparation, that the bodies should not remain upon the cross on the sabbath day, (for that sabbath day was a high day,) besought Pilate that their legs might be broken, and [that] they might be taken away.
32 Then came the soldiers, and broke the legs of the first, and of the other which was crucified with him.
33 But when they came to Jesus, and saw that he was dead already, they broke not his legs: