What instrument is NOT required for rib removal during kidney exposure?

The Heaney clamp is not a necessary instrument for rib removal during kidney exposure. This clamp is primarily designed for grasping and manipulating tissue, particularly in gynecological surgeries, rather than for procedures involving rib removal or manipulation.

In contrast, the Alexander periosteotome is specifically utilized to elevate the periosteum from the bone, making it valuable for tasks such as rib removal. The Doyen raspatory is also relevant, as it is employed to prepare the rib edges for removal, facilitating access to the kidney. Lastly, Still shears are used to cut through rib sections during the procedure. All these instruments serve specific functions that aid in the removal of ribs to provide optimal access to the kidneys, while the Heaney clamp does not align with this requirement.