Shunt fracture (breakage)

What it is

Shunt fracture (or breakage) is a break in the shunt tubing or another component, which interrupts the flow of cerebrospinal fluid and causes a shunt malfunction. It is one of the mechanical causes of shunt failure.

Understanding Shunt fracture (breakage)

Over time, shunt tubing can break — for example, as the materials age and become brittle, or due to repeated movement and stress, sometimes at points where the tubing crosses joints or where calcium deposits form along it. A fracture interrupts the continuous pathway the shunt provides, so CSF cannot drain properly, causing a malfunction (though, as with disconnection, fluid may sometimes track along the old path and partially mask the problem). A shunt fracture can often be seen on a shunt series (X-rays), which reveals the break or gap. It is treated with a shunt revision to replace the broken segment or hardware. Fracture, disconnection, and migration are related mechanical problems affecting the shunt's structural integrity.

Why it matters

Understanding shunt fracture helps families see how shunt tubing can break over time, causing malfunction, and how X-rays identify the break and a revision repairs it.