A child’s foot is still growing, which does a lot of work for the surgeon: a correction achieved at four has a decade of remodeling to settle into. An adult foot does none of that. Whatever position is created in theater is the position that stays.

There is also more history in the way. Previous operations mean scarring and altered blood supply, and decades of walking mean the joints have wear that a child’s do not. Both make adult surgery a bigger undertaking with a longer recovery than the same-sounding operation in a child.

Serial casting is a childhood treatment, and whether it does anything for a foot that has finished growing is not established. One group has started using a modified version before surgery in teenagers and adults with complex foot deformities, some from clubfoot and some from other causes.

In 58 skeletally mature patients, casting improved the deformity in every plane measured, but 95 percent still needed further procedures, and 77 percent of feet needed more than an Achilles tenotomy. A plantigrade foot was reached in 89 percent of feet. After a median of 17 months, 13 percent had relapsed.5

What it means: casting did not replace surgery in that series, and the authors report that it reduced the need for, or the complexity of, the major surgery that followed. What nobody knows: how it holds up over years, or how it does in adult clubfoot specifically, since the study mixed causes. It is a question for a foot and ankle surgeon, not a treatment to seek out on its own.

Most adults arrive at a surgical conversation with no records and no baseline. Nobody measured their foot at twenty-five, so nothing establishes what has changed. That makes every question about progression a matter of memory.

If you are reading this before a surgical conversation instead of during one, get the baseline recorded now: range of motion in degrees, calf circumference, weight-bearing imaging. It costs one appointment and it is the thing I most regret not having.