What are the reasons for the failure of titanium mesh cranial repair surgery? The cranial bone is a strong and powerful protection for our brain tissue and is an important barrier for life safety. However, many people suffer from damage to the skull due to some irresistible factors, which is a very serious problem. Cranial damage should be solved by skull repair surgery, which not only can restore the integrity of the patient’s cranial cavity, play a safe and aesthetic effect, but also can improve the cerebral blood flow of the patient to a certain extent after surgery. In turn, it has a positive effect on improving and restoring brain function. However, it has been clinically proven that titanium mesh exposure is one of the serious complications after cranial repair, which has great physical and psychological impact on patients, increases the economic burden of patients, and easily causes intracranial infection. What are the common factors leading to titanium mesh exposure in cranial bone repair? 1.Titanium mesh is a metal foreign body, which may produce rejection and increase the chance of infection when implanted in the body. 2.The edge of trimmed titanium mesh is sharp and easy to cut the skin; the custom-made titanium mesh is too large and the overlap with skull is too wide, and the local osteoporosis may cause the titanium nail to loosen; if the titanium mesh is poorly shaped, it may cause the edge to buckle and stab the skin. 3, the flap itself is too thin or too thin when cutting; the flap inner surface hemostasis when the electric knife or electrocoagulation is excessively cauterized; after large bone flap decompression surgery, the skull defect range is large, and the flap needed is also large, the more obvious the impact on blood supply, poor local skin nutrition, poor blood supply, the flap is prone to necrosis, rupture, incision cracking, repair material exposed. 4.The skin flap collapses obviously before cranial repair, the skin flap incision is sutured with high tension, the incision edge is severely damaged or improperly sutured resulting in skin inversion and difficult incision healing. 5.The wire knot buried in the incision in both surgeries is a foreign body, and if the reaction of the wire knot occurs, it will cause infection, local itching after infection, and the trauma will gradually expand after scratching. 6, poor intraoperative flap hemostasis or flap collapse is obvious, large subcutaneous dead cavity or subcutaneous fluid and blood accumulation after repair, separation of titanium mesh and dura mater, leaving a residual cavity, resulting in difficulty in healing of the incision. 7. Chronic cutting of the scalp by the titanium mesh. The internal suction effect of intracranial low pressure on the scalp at the skull repair and the chronic cutting of the scalp by the fine titanium mesh frame make the three-dimensional titanium mesh gradually become shallow and finally lead to the exposure of the titanium mesh, which is a slow and gradual process. Choosing a more skilled physician can effectively avoid these risks. Patients must do their homework when choosing a hospital.