For an adjunct to flat foot reconstruction I will do a percutaneous one the majority of the time. For equinus deformities ( toe walkers, as an adjunct to drop foot repairs with TP tendon transfer) open often with ankle/STJ release, possibly syndesmotic release. Refer? Ha you can send yours to me
1st I hope we are saying that they need a TAL vs a Gastroc determined by silfverskiold exam.
In diabetics for forefoot ulcers or TMAs - perqutaneous TAL w/ 3 hemisections most distally lateral, then medial, then most proximal lateral. This is the Dr. Steinberg method since the sural nerve most likely at this point is useless, but the PT artery may be the only vessel supplying the foot.
In non-diabetic adult that needs a TAL - perQ medial, lateral, medial to spare the sural nerve
In children - open, white procedure (uses the twist of the fibers for the plane of lengthening)
I think you have to be very careful about doing TALs in adults for flatfoot. It significantly weakens the tendon and most (not all, but most) adults with flatfoot (PTTD) have a gastroc equinus and need only a gastroc recession and not a full TAL.