Spontaneous fracture of cranioplastic titanium implants without head trauma in an adult: A case report.

•The dynamic load was generated at basitemporal skull if prosthesis was not anchored to this loci.•Via the parietal tuber-temporozygomatic suture line, this dynamic load was passed to the proximal pterion point region, which eventually generated fatigue effects on the prosthesis and eventually fracture.•The cranioplasty prosthesis shall be well anchored onto the basitemporal skull to prevent fatigue effects of the prosthesis.