A surgical positioning aid includes a sheet of foldable material foldable between a flat position and a wrist support position. In the wrist support position, the sheet is folded to form a hump having sufficient strength to support a patient's wrist in a hyper-extended position during surgery. The sheet also includes a coupler situated at a first end region of the sheet. The coupler is operable to engage an opposite, second end region of the sheet and to hold the sheet in the wrist support position. Many other surgical positioning aid embodiments are also disclosed.
