Title: Fracture fill in the blank

Fill in the missing words

Q: A [...] can occur if either the resulting force exceeds the loading capacity of the bone or under otherwise uncritical loads if the biomechanical competence of the bone is decreased.

Direct contact fracture healing may allow for healing [...] (with/without) callus formation.

Most fractures in nature require [...] fracture healing, healing [...] (with/without) callus formation.
A: fracture; without; indirect; with