Casting corrects position over weeks. It does not change the tendency of the tissue to pull the foot back toward where it started, and that tendency persists for years while a child grows. The brace holds the correction against it, at the times of day when the foot is not being used.

The scale of that effect is now reasonably well established. A 2026 meta-analysis pooling 25 studies and 1,624 children put relapse after Ponseti treatment at around 26 percent, roughly one child in four, and found brace non-compliance to be by far the strongest modifiable factor associated with it, with a pooled odds ratio above twenty. Baseline severity and delayed treatment mattered too, and neither is something a family controls. The hours are.

That is why hours matter more than effort, and why the schedule steps down over time instead of stopping: full-time at first, then nights and naps, then nights only, typically until around age four or five depending on the provider. Each step is matched to how much pull is still expected.

It is the fear that comes before the first night, and the best measurement so far says no. Twenty-five children aged one to three sleeping in a nighttime brace were monitored by video for a week and compared with matched children without clubfoot. There was no difference in how efficiently they slept, how long they slept, or how often they woke. Their parents did get up to them slightly more often.8

It is one small study, of toddlers rather than young babies, so it says nothing about the first weeks of full-time bracing. But it runs against the assumption that years of bracing mean years of broken nights.

Parents routinely round the hours up. It is entirely understandable. The clinic asked for fourteen, you managed nine, and saying so feels like admitting failure in front of the people treating your child.

The consequence is that when the foot starts to drift, the clinic is working from a picture in which bracing was going fine, and concludes the correction is failing for some other reason. Saying the real number is what lets them solve the actual problem, and clinics have heard every version of this. Nobody is judging the two weeks you had.

The hours matter more than the hardware, but the hardware is not nothing: pressure sores ran at 22.9 percent in one design against 12.6 percent in another across 247 children. What is known about each brace.