A surgical boot mount for mounting a surgical boot to a support rod of a limb holder, the surgical boot mount comprising: a projection having a first section and a second section, wherein the first section is attached to the sole of the surgical boot, wherein the first section comprises a first diameter and the second section comprises a second diameter, and further wherein the second diameter is larger than the first diameter and a releasable locking mechanism mounted to the support rod of the limb holder, wherein the releasable locking mechanism comprises a first key comprising a first keyway and a second key comprising a second keyway, wherein the second key is slidably connected to the first key, wherein the first key is biased away from the second key, wherein the first keyway and the second keyway overlap to form an opening at least as large as the second diameter when an inwardly-directed force is applied to the first key so as to overcome the bias, and further wherein the opening is reduced to a size smaller than the second diameter when the inwardly-directed force is released from the first key.